refactor: unify structured output with pydantic model

Signed-off-by: Stream <Stream_2@qq.com>

.agent/skills

@@ -0,0 +1 @@
+../.claude/skills

.agents/skills/backend-code-review/SKILL.md

@@ -1,40 +0,0 @@
----
-name: backend-code-review
-description: Use only when the user explicitly requests a review or audit of backend code under `api/`. Supports pending-change, file-focused, and pasted-diff reviews. Do not use for implementation-only requests, diagnosis without review intent, frontend code, or backend code outside `api/`.
----
-
-# Backend Code Review
-
-Review the requested scope for concrete, reproducible defects. The nearest `AGENTS.md` owns package facts and commands; this skill owns the review workflow and routes to its bundled rule packs.
-
-## Evidence First
-
-1. Establish the requested review scope and inspect the relevant diff or files.
-2. Read the changed lines, their behavior owner, nearby tests, and local docstrings or comments that define contracts.
-3. Trace callers, persistence boundaries, authorization, generated schemas, or external I/O only when they decide correctness.
-4. Report only findings tied to an observable failure, violated contract, security boundary, data integrity risk, or demonstrated maintenance problem.
-
-## Rule Routing
-
-Read only the packs matched by the diff:
-
-- Models or migrations: [`references/db-schema-rule.md`][db-schema]
-- Controller, service, core/domain, library, or model dependency direction: [`references/architecture-rule.md`][architecture]
-- Table access outside an established repository boundary: [`references/repositories-rule.md`][repositories]
-- SQLAlchemy sessions, queries, transactions, CRUD, concurrency, or raw SQL: [`references/sqlalchemy-rule.md`][sqlalchemy]
-
-When no pack applies, review correctness, security, behavior changes, and test evidence directly. Check current official documentation only when local code and contracts do not settle framework or library behavior.
-
-## Severity And Output
-
-- **P0**: security or privacy exposure, data loss, or a production-wide outage.
-- **P1**: user-visible regression, broken authorization or tenant isolation, invalid public contract, or failed primary workflow.
-- **P2**: concrete correctness, performance, maintainability, or test defect likely to cause incorrect behavior.
-- **P3**: minor actionable cleanup; omit unless the user requested a thorough audit.
-
-Lead with findings ordered by severity. Include a tight file and line reference, the failing contract or reproduction path, impact, and a concrete fix direction. If there are no findings, say `No issues found.` and state any material verification gap. Do not add praise sections, speculative risks, or an unsolicited offer to implement fixes.
-
-[architecture]: references/architecture-rule.md
-[db-schema]: references/db-schema-rule.md
-[repositories]: references/repositories-rule.md
-[sqlalchemy]: references/sqlalchemy-rule.md

.agents/skills/backend-code-review/references/architecture-rule.md

@@ -1,88 +0,0 @@
-# Rule Catalog — Architecture
-
-## Scope
-- Covers: controller/service/core-domain/libs/model layering, dependency direction, responsibility placement, observability-friendly flow.
-
-## Rules
-
-### Keep business logic out of controllers
-- Category: maintainability
-- Description: Controllers should parse input, call services, and return serialized responses. Business decisions inside controllers make behavior hard to reuse and test.
-- Suggested fix: Move domain/business logic into the service or core/domain layer. Keep controller handlers thin and orchestration-focused.
-- Example:
-  - Bad:
-    ```python
-    @bp.post("/apps/<app_id>/publish")
-    def publish_app(app_id: str):
-        payload = request.get_json() or {}
-        if payload.get("force") and current_user.role != "admin":
-            raise ValueError("only admin can force publish")
-        app = App.query.get(app_id)
-        app.status = "published"
-        db.session.commit()
-        return {"result": "ok"}
-    ```
-  - Good:
-    ```python
-    @bp.post("/apps/<app_id>/publish")
-    def publish_app(app_id: str):
-        payload = PublishRequest.model_validate(request.get_json() or {})
-        app_service.publish_app(app_id=app_id, force=payload.force, actor_id=current_user.id)
-        return {"result": "ok"}
-    ```
-
-### Preserve layer dependency direction
-- Category: best practices
-- Description: Controllers may depend on services, and services may depend on core/domain abstractions. Reversing this direction (for example, core importing controller/web modules) creates cycles and leaks transport concerns into domain code.
-- Suggested fix: Extract shared contracts into core/domain or service-level modules and make upper layers depend on lower, not the reverse.
-- Example:
-  - Bad:
-    ```python
-    # core/policy/publish_policy.py
-    from controllers.console.app import request_context
-
-    def can_publish() -> bool:
-        return request_context.current_user.is_admin
-    ```
-  - Good:
-    ```python
-    # core/policy/publish_policy.py
-    def can_publish(role: str) -> bool:
-        return role == "admin"
-
-    # service layer adapts web/user context to domain input
-    allowed = can_publish(role=current_user.role)
-    ```
-
-### Keep libs business-agnostic
-- Category: maintainability
-- Description: Modules under `api/libs/` should remain reusable, business-agnostic building blocks. They must not encode product/domain-specific rules, workflow orchestration, or business decisions.
-- Suggested fix:
-  - If business logic appears in `api/libs/`, extract it into the appropriate `services/` or `core/` module and keep `libs` focused on generic, cross-cutting helpers.
-  - Keep `libs` dependencies clean: avoid importing service/controller/domain-specific modules into `api/libs/`.
-- Example:
-  - Bad:
-    ```python
-    # api/libs/conversation_filter.py
-    from services.conversation_service import ConversationService
-
-    def should_archive_conversation(conversation, tenant_id: str) -> bool:
-        # Domain policy and service dependency are leaking into libs.
-        service = ConversationService()
-        if service.has_paid_plan(tenant_id):
-            return conversation.idle_days > 90
-        return conversation.idle_days > 30
-    ```
-  - Good:
-    ```python
-    # api/libs/datetime_utils.py (business-agnostic helper)
-    def older_than_days(idle_days: int, threshold_days: int) -> bool:
-        return idle_days > threshold_days
-
-    # services/conversation_service.py (business logic stays in service/core)
-    from libs.datetime_utils import older_than_days
-
-    def should_archive_conversation(conversation, tenant_id: str) -> bool:
-        threshold_days = 90 if has_paid_plan(tenant_id) else 30
-        return older_than_days(conversation.idle_days, threshold_days)
-    ```

.agents/skills/backend-code-review/references/db-schema-rule.md

@@ -1,152 +0,0 @@
-# Rule Catalog — DB Schema Design
-
-## Scope
-- Covers: model/base inheritance, schema boundaries in model properties, tenant-aware schema design, index redundancy checks, dialect portability in models, and cross-database compatibility in migrations.
-- Does NOT cover: session lifecycle, transaction boundaries, and query execution patterns (handled by `sqlalchemy-rule.md`).
-
-## Rules
-
-### Do not query other tables inside `@property`
-- Category: [maintainability, performance]
-- Description: A model `@property` must not open sessions or query other tables. This hides dependencies across models, tightly couples schema objects to data access, and can cause N+1 query explosions when iterating collections.
-- Suggested fix:
-  - Keep model properties pure and local to already-loaded fields.
-  - Move cross-table data fetching to service/repository methods.
-  - For list/batch reads, fetch required related data explicitly (join/preload/bulk query) before rendering derived values.
-- Example:
-  - Bad:
-    ```python
-    class Conversation(TypeBase):
-        __tablename__ = "conversations"
-
-        @property
-        def app_name(self) -> str:
-            with Session(db.engine, expire_on_commit=False) as session:
-                app = session.execute(select(App).where(App.id == self.app_id)).scalar_one()
-                return app.name
-    ```
-  - Good:
-    ```python
-    class Conversation(TypeBase):
-        __tablename__ = "conversations"
-
-        @property
-        def display_title(self) -> str:
-            return self.name or "Untitled"
-
-
-    # Service/repository layer performs explicit batch fetch for related App rows.
-    ```
-
-### Prefer including `tenant_id` in model definitions
-- Category: maintainability
-- Description: In multi-tenant domains, include `tenant_id` in schema definitions whenever the entity belongs to tenant-owned data. This improves data isolation safety and keeps future partitioning/sharding strategies practical as data volume grows.
-- Suggested fix:
-  - Add a `tenant_id` column and ensure related unique/index constraints include tenant dimension when applicable.
-  - Propagate `tenant_id` through service/repository contracts to keep access paths tenant-aware.
-  - Exception: if a table is explicitly designed as non-tenant-scoped global metadata, document that design decision clearly.
-- Example:
-  - Bad:
-    ```python
-    from sqlalchemy.orm import Mapped
-
-    class Dataset(TypeBase):
-        __tablename__ = "datasets"
-        id: Mapped[str] = mapped_column(StringUUID, primary_key=True)
-        name: Mapped[str] = mapped_column(sa.String(255), nullable=False)
-    ```
-  - Good:
-    ```python
-    from sqlalchemy.orm import Mapped
-
-    class Dataset(TypeBase):
-        __tablename__ = "datasets"
-        id: Mapped[str] = mapped_column(StringUUID, primary_key=True)
-        tenant_id: Mapped[str] = mapped_column(StringUUID, nullable=False, index=True)
-        name: Mapped[str] = mapped_column(sa.String(255), nullable=False)
-    ```
-
-### Detect and avoid duplicate/redundant indexes
-- Category: performance
-- Description: Review index definitions for leftmost-prefix redundancy. For example, index `(a, b, c)` can safely cover most lookups for `(a, b)`. Keeping both may increase write overhead and can mislead the optimizer into suboptimal execution plans.
-- Suggested fix:
-  - Before adding an index, compare against existing composite indexes by leftmost-prefix rules.
-  - Drop or avoid creating redundant prefixes unless there is a proven query-pattern need.
-  - Apply the same review standard in both model `__table_args__` and migration index DDL.
-- Example:
-  - Bad:
-    ```python
-    __table_args__ = (
-        sa.Index("idx_msg_tenant_app", "tenant_id", "app_id"),
-        sa.Index("idx_msg_tenant_app_created", "tenant_id", "app_id", "created_at"),
-    )
-    ```
-  - Good:
-    ```python
-    __table_args__ = (
-        # Keep the wider index unless profiling proves a dedicated short index is needed.
-        sa.Index("idx_msg_tenant_app_created", "tenant_id", "app_id", "created_at"),
-    )
-    ```
-
-### Avoid PostgreSQL-only dialect usage in models; wrap in `models.types`
-- Category: maintainability
-- Description: Model/schema definitions should avoid PostgreSQL-only constructs directly in business models. When database-specific behavior is required, encapsulate it in `api/models/types.py` using both PostgreSQL and MySQL dialect implementations, then consume that abstraction from model code.
-- Suggested fix:
-  - Do not directly place dialect-only types/operators in model columns when a portable wrapper can be used.
-  - Add or extend wrappers in `models.types` (for example, `AdjustedJSON`, `LongText`, `BinaryData`) to normalize behavior across PostgreSQL and MySQL.
-- Example:
-  - Bad:
-    ```python
-    from sqlalchemy.dialects.postgresql import JSONB
-    from sqlalchemy.orm import Mapped
-
-    class ToolConfig(TypeBase):
-        __tablename__ = "tool_configs"
-        config: Mapped[dict] = mapped_column(JSONB, nullable=False)
-    ```
-  - Good:
-    ```python
-    from sqlalchemy.orm import Mapped
-
-    from models.types import AdjustedJSON
-
-    class ToolConfig(TypeBase):
-        __tablename__ = "tool_configs"
-        config: Mapped[dict] = mapped_column(AdjustedJSON(), nullable=False)
-    ```
-
-### Guard migration incompatibilities with dialect checks and shared types
-- Category: maintainability
-- Description: Migration scripts under `api/migrations/versions/` must account for PostgreSQL/MySQL incompatibilities explicitly. For dialect-sensitive DDL or defaults, branch on the active dialect (for example, `conn.dialect.name == "postgresql"`), and prefer reusable compatibility abstractions from `models.types` where applicable.
-- Suggested fix:
-  - In migration upgrades/downgrades, bind connection and branch by dialect for incompatible SQL fragments.
-  - Reuse `models.types` wrappers in column definitions when that keeps behavior aligned with runtime models.
-  - Avoid one-dialect-only migration logic unless there is a documented, deliberate compatibility exception.
-- Example:
-  - Bad:
-    ```python
-    with op.batch_alter_table("dataset_keyword_tables") as batch_op:
-        batch_op.add_column(
-            sa.Column(
-                "data_source_type",
-                sa.String(255),
-                server_default=sa.text("'database'::character varying"),
-                nullable=False,
-            )
-        )
-    ```
-  - Good:
-    ```python
-    def _is_pg(conn) -> bool:
-        return conn.dialect.name == "postgresql"
-
-
-    conn = op.get_bind()
-    default_expr = sa.text("'database'::character varying") if _is_pg(conn) else sa.text("'database'")
-
-    with op.batch_alter_table("dataset_keyword_tables") as batch_op:
-        batch_op.add_column(
-            sa.Column("data_source_type", sa.String(255), server_default=default_expr, nullable=False)
-        )
-    ```

.agents/skills/backend-code-review/references/repositories-rule.md

@@ -1,60 +0,0 @@
-# Rule Catalog - Repositories Abstraction
-
-## Scope
-- Covers: when to reuse existing repository abstractions, when to introduce new repositories, and how to preserve dependency direction between service/core and infrastructure implementations.
-- Does NOT cover: SQLAlchemy session lifecycle and query-shape specifics (handled by `sqlalchemy-rule.md`), and table schema/migration design (handled by `db-schema-rule.md`).
-
-## Rules
-
-### Introduce repositories abstraction
-- Category: maintainability
-- Description: If a table/model already has a repository abstraction, all reads/writes/queries for that table should use the existing repository. If no repository exists, introduce one only when complexity justifies it, such as large/high-volume tables, repeated complex query logic, or likely storage-strategy variation.
-- Suggested fix:
-  - First check  `api/repositories`, `api/core/repositories`, and `api/extensions/*/repositories/` to verify whether the table/model already has a repository abstraction. If it exists, route all operations through it and add missing repository methods instead of bypassing it with ad-hoc SQLAlchemy access.
-  - If no repository exists, add one only when complexity warrants it (for example, repeated complex queries, large data domains, or multiple storage strategies), while preserving dependency direction (service/core depends on abstraction; infra provides implementation).
-- Example:
-  - Bad:
-    ```python
-    # Existing repository is ignored and service uses ad-hoc table queries.
-    class AppService:
-        def archive_app(self, app_id: str, tenant_id: str) -> None:
-            app = self.session.execute(
-                select(App).where(App.id == app_id, App.tenant_id == tenant_id)
-            ).scalar_one()
-            app.archived = True
-            self.session.commit()
-    ```
-  - Good:
-    ```python
-    # Case A: Existing repository must be reused for all table operations.
-    class AppService:
-        def archive_app(self, app_id: str, tenant_id: str) -> None:
-            app = self.app_repo.get_by_id(app_id=app_id, tenant_id=tenant_id)
-            app.archived = True
-            self.app_repo.save(app)
-
-    # If the query is missing, extend the existing abstraction.
-    active_apps = self.app_repo.list_active_for_tenant(tenant_id=tenant_id)
-    ```
-  - Bad:
-    ```python
-    # No repository exists, but large-domain query logic is scattered in service code.
-    class ConversationService:
-        def list_recent_for_app(self, app_id: str, tenant_id: str, limit: int) -> list[Conversation]:
-            ...
-            # many filters/joins/pagination variants duplicated across services
-    ```
-  - Good:
-    ```python
-    # Case B: Introduce repository for large/complex domains or storage variation.
-    class ConversationRepository(Protocol):
-        def list_recent_for_app(self, app_id: str, tenant_id: str, limit: int) -> list[Conversation]: ...
-
-    class SqlAlchemyConversationRepository:
-        def list_recent_for_app(self, app_id: str, tenant_id: str, limit: int) -> list[Conversation]:
-            ...
-
-    class ConversationService:
-        def __init__(self, conversation_repo: ConversationRepository):
-            self.conversation_repo = conversation_repo
-    ```

.agents/skills/backend-code-review/references/sqlalchemy-rule.md

@@ -1,135 +0,0 @@
-# Rule Catalog — SQLAlchemy Patterns
-
-## Scope
-- Covers: SQLAlchemy session and transaction lifecycle, query construction, tenant scoping, raw SQL boundaries, and write-path concurrency safeguards.
-- Does NOT cover: table/model schema and migration design details (handled by `db-schema-rule.md`).
-
-## Rules
-
-### Use Session context manager with explicit transaction control behavior
-- Category: best practices
-- Description: Session and transaction lifecycle must be explicit and bounded on write paths. Missing commits can silently drop intended updates, while ad-hoc or long-lived transactions increase contention, lock duration, and deadlock risk.
-- Suggested fix:
-  - Use **explicit `session.commit()`** after completing a related write unit.
-  - Or use **`session.begin()` context manager** for automatic commit/rollback on a scoped block.
-  - Keep transaction windows short: avoid network I/O, heavy computation, or unrelated work inside the transaction.
-- Example:
-  - Bad:
-    ```python
-    # Missing commit: write may never be persisted.
-    with Session(db.engine, expire_on_commit=False) as session:
-        run = session.get(WorkflowRun, run_id)
-        run.status = "cancelled"
-
-    # Long transaction: external I/O inside a DB transaction.
-    with Session(db.engine, expire_on_commit=False) as session, session.begin():
-        run = session.get(WorkflowRun, run_id)
-        run.status = "cancelled"
-        call_external_api()
-    ```
-  - Good:
-    ```python
-    # Option 1: explicit commit.
-    with Session(db.engine, expire_on_commit=False) as session:
-        run = session.get(WorkflowRun, run_id)
-        run.status = "cancelled"
-        session.commit()
-
-    # Option 2: scoped transaction with automatic commit/rollback.
-    with Session(db.engine, expire_on_commit=False) as session, session.begin():
-        run = session.get(WorkflowRun, run_id)
-        run.status = "cancelled"
-
-    # Keep non-DB work outside transaction scope.
-    call_external_api()
-    ```
-
-### Enforce tenant_id scoping on shared-resource queries
-- Category: security
-- Description: Reads and writes against shared tables must be scoped by `tenant_id` to prevent cross-tenant data leakage or corruption.
-- Suggested fix: Add `tenant_id` predicate to all tenant-owned entity queries and propagate tenant context through service/repository interfaces.
-- Example:
-  - Bad:
-    ```python
-    stmt = select(Workflow).where(Workflow.id == workflow_id)
-    workflow = session.execute(stmt).scalar_one_or_none()
-    ```
-  - Good:
-    ```python
-    stmt = select(Workflow).where(
-        Workflow.id == workflow_id,
-        Workflow.tenant_id == tenant_id,
-    )
-    workflow = session.execute(stmt).scalar_one_or_none()
-    ```
-
-### Prefer SQLAlchemy expressions over raw SQL by default
-- Category: maintainability
-- Description: Raw SQL should be exceptional. ORM/Core expressions are easier to evolve, safer to compose, and more consistent with the codebase.
-- Suggested fix: Rewrite straightforward raw SQL into SQLAlchemy `select/update/delete` expressions; keep raw SQL only when required by clear technical constraints.
-- Example:
-  - Bad:
-    ```python
-    row = session.execute(
-        text("SELECT * FROM workflows WHERE id = :id AND tenant_id = :tenant_id"),
-        {"id": workflow_id, "tenant_id": tenant_id},
-    ).first()
-    ```
-  - Good:
-    ```python
-    stmt = select(Workflow).where(
-        Workflow.id == workflow_id,
-        Workflow.tenant_id == tenant_id,
-    )
-    row = session.execute(stmt).scalar_one_or_none()
-    ```
-
-### Protect write paths with concurrency safeguards
-- Category: quality
-- Description: Multi-writer paths without explicit concurrency control can silently overwrite data. Choose the safeguard based on contention level, lock scope, and throughput cost instead of defaulting to one strategy.
-- Suggested fix:
-  - **Optimistic locking**: Use when contention is usually low and retries are acceptable. Add a version (or updated_at) guard in `WHERE` and treat `rowcount == 0` as a conflict.
-  - **Redis distributed lock**: Use when the critical section spans multiple steps/processes (or includes non-DB side effects) and you need cross-worker mutual exclusion.
-  - **SELECT ... FOR UPDATE**: Use when contention is high on the same rows and strict in-transaction serialization is required. Keep transactions short to reduce lock wait/deadlock risk.
-  - In all cases, scope by `tenant_id` and verify affected row counts for conditional writes.
-- Example:
-  - Bad:
-    ```python
-    # No tenant scope, no conflict detection, and no lock on a contested write path.
-    session.execute(update(WorkflowRun).where(WorkflowRun.id == run_id).values(status="cancelled"))
-    session.commit()  # silently overwrites concurrent updates
-    ```
-  - Good:
-    ```python
-    # 1) Optimistic lock (low contention, retry on conflict)
-    result = session.execute(
-        update(WorkflowRun)
-        .where(
-            WorkflowRun.id == run_id,
-            WorkflowRun.tenant_id == tenant_id,
-            WorkflowRun.version == expected_version,
-        )
-        .values(status="cancelled", version=WorkflowRun.version + 1)
-    )
-    if result.rowcount == 0:
-        raise WorkflowStateConflictError("stale version, retry")
-
-    # 2) Redis distributed lock (cross-worker critical section)
-    lock_name = f"workflow_run_lock:{tenant_id}:{run_id}"
-    with redis_client.lock(lock_name, timeout=20):
-        session.execute(
-            update(WorkflowRun)
-            .where(WorkflowRun.id == run_id, WorkflowRun.tenant_id == tenant_id)
-            .values(status="cancelled")
-        )
-        session.commit()
-
-    # 3) Pessimistic lock with SELECT ... FOR UPDATE (high contention)
-    run = session.execute(
-        select(WorkflowRun)
-        .where(WorkflowRun.id == run_id, WorkflowRun.tenant_id == tenant_id)
-        .with_for_update()
-    ).scalar_one()
-    run.status = "cancelled"
-    session.commit()
-    ```

.agents/skills/e2e-cucumber-playwright/SKILL.md

@@ -1,31 +0,0 @@
----
-name: e2e-cucumber-playwright
-description: Use when writing, changing, or reviewing Cucumber and Playwright tests under `e2e/`, including feature files, step definitions, support code, scenario tags, locators, and assertions. Do not use for Vitest, React Testing Library, backend tests, or generic browser automation outside the E2E suite.
----
-
-# E2E Cucumber And Playwright
-
-`e2e/AGENTS.md` owns the suite architecture, lifecycle, commands, tags, generated-client boundaries, fixtures, and cleanup contracts. Read the nearest feature-scoped `AGENTS.md` when one exists. This skill adds no parallel package policy.
-
-## Topic Routing
-
-Read only the bundled reference required by the change:
-
-- Locator, assertion, isolation, or waiting decisions: [`references/playwright-best-practices.md`][playwright]
-- Scenario wording, step granularity, expressions, or tag design: [`references/cucumber-best-practices.md`][cucumber]
-
-Check current official Playwright or Cucumber documentation before introducing a framework pattern that local code and references do not already establish.
-
-## Workflow
-
-1. Add E2E coverage only for a critical user journey with a cross-boundary outcome that cheaper owner-level tests do not already prove.
-2. Identify the user-visible behavior and its feature owner. Start from real product defaults and actor roles; setup may establish preconditions but must not manufacture the opposite state to make the scenario meaningful.
-3. Read the target scenario, matching step definitions, and lifecycle files only when session or shared state matters.
-4. Reuse an existing step when wording and behavior match; add one coherent scenario or step when they do not.
-5. Keep browser actions and assertions at the public user boundary; keep setup, seed, polling, and cleanup at their package-defined owners.
-6. Run the narrowest tagged scenario and package checks documented in `e2e/AGENTS.md`; broaden only for shared hooks, tags, or support changes.
-
-For review requests, lead with reproducible correctness failures, flake sources, or demonstrated architecture drift. Report the behavior verified and any external-runtime, browser, or environment gap.
-
-[cucumber]: references/cucumber-best-practices.md
-[playwright]: references/playwright-best-practices.md

.agents/skills/e2e-cucumber-playwright/agents/openai.yaml

@@ -1,4 +0,0 @@
-interface:
-  display_name: "E2E Cucumber + Playwright"
-  short_description: "Write and review Dify E2E scenarios."
-  default_prompt: "Use $e2e-cucumber-playwright to write or review a Dify E2E scenario under e2e/."

.agents/skills/e2e-cucumber-playwright/references/cucumber-best-practices.md

@@ -1,79 +0,0 @@
-# Cucumber Best Practices
-
-Use this reference when writing or reviewing Gherkin scenarios, step definitions, parameter expressions, and step reuse.
-
-Official sources:
-
-- https://cucumber.io/docs/guides/10-minute-tutorial
-- https://cucumber.io/docs/cucumber/step-definitions
-- https://cucumber.io/docs/cucumber/cucumber-expressions
-
-## What Matters Most
-
-### 1. Treat scenarios as executable specifications
-
-Cucumber scenarios should describe examples of behavior, not test implementation recipes.
-
-Apply it like this:
-
-- write what the user does and what should happen
-- avoid UI-internal wording such as selector details, DOM structure, or component names
-- keep language concrete enough that the scenario reads like living documentation
-
-### 2. Keep scenarios focused
-
-A scenario should usually prove one workflow or business outcome. If a scenario wanders across several unrelated behaviors, split it.
-
-Keep each scenario centered on one coherent outcome. Avoid hidden dependencies on another scenario's side effects, and keep unavoidable setup outside the behavior narrative unless the precondition matters to the specification.
-
-### 3. Reuse steps, but only when behavior really matches
-
-Good reuse reduces duplication. Bad reuse hides meaning.
-
-Prefer reuse when:
-
-- the user action is genuinely the same
-- the expected outcome is genuinely the same
-- the wording stays natural across features
-- the parameter is a real product domain value such as a named surface, mode, resource, or status
-
-Write a new step when:
-
-- the behavior is materially different
-- reusing the old wording would make the scenario misleading
-- a supposedly generic step would become an implementation-detail wrapper
-
-Do not optimize for a low step count by making vague steps. Optimize for a small set of truthful, domain-owned steps.
-
-### 4. Prefer Cucumber Expressions
-
-Use Cucumber Expressions for parameters unless regex is clearly necessary.
-
-Common examples:
-
-- `{string}` for labels, names, and visible text
-- `{int}` for counts
-- `{float}` for decimal values
-- `{word}` only when the value is truly a single token
-
-Keep expressions readable. If a step needs complicated parsing logic, first ask whether the scenario wording should be simpler.
-
-Use regex for a bounded natural-language alternative only when it keeps Gherkin readable, for example `/(Web app|Backend service API)/`. Avoid broad regexes that accept unowned language.
-
-### 5. Keep step definitions thin and meaningful
-
-Step definitions are glue between Gherkin and automation, not a second abstraction language.
-
-Keep each step to one user-visible action or assertion. In JavaScript and TypeScript, use `async function` when the step reads Cucumber World state because Cucumber binds `this`; do not leak state across scenarios through module globals.
-
-### 6. Use tags intentionally
-
-Tags should communicate selection or execution intent, not become ad hoc metadata. A tag does not change runtime behavior unless configuration or hooks implement it.
-
-## Review Questions
-
-- Does the scenario read like a real example of product behavior?
-- Are the steps behavior-oriented instead of implementation-oriented?
-- Is a reused step still truthful in this feature?
-- Is a new tag documenting real behavior, or inventing semantics that the suite does not implement?
-- Would a new reader understand the outcome without opening the step-definition file?

.agents/skills/e2e-cucumber-playwright/references/playwright-best-practices.md

@@ -1,91 +0,0 @@
-# Playwright Best Practices
-
-Use this reference when writing or reviewing locator, assertion, isolation, or synchronization logic.
-
-Official sources:
-
-- https://playwright.dev/docs/best-practices
-- https://playwright.dev/docs/locators
-- https://playwright.dev/docs/test-assertions
-- https://playwright.dev/docs/browser-contexts
-
-## What Matters Most
-
-### 1. Keep scenarios isolated
-
-Playwright's model is built around clean browser contexts so one test does not leak into another.
-
-Apply it like this:
-
-- do not depend on another scenario having run first
-- keep scenario state in the runner's scenario-owned context rather than module globals
-- model special authentication or session setup through explicit per-scenario fixtures rather than shared mutable state
-
-### 2. Prefer user-facing locators
-
-Playwright recommends built-in locators that reflect what users perceive on the page.
-
-Preferred order:
-
-1. `getByRole`
-2. `getByLabel`
-3. `getByPlaceholder`
-4. `getByText`
-5. `getByTestId` when an explicit test contract is the most stable option
-
-Avoid raw CSS/XPath selectors unless no stable user-facing contract exists and adding one is not practical.
-
-Also remember:
-
-- repeated content usually needs scoping to a stable container
-- exact text matching is often too brittle when role/name or label already exists
-- `getByTestId` is acceptable when semantics are weak but the contract is intentional
-- when a real UI region, card, status, or icon lacks an accessible name, prefer adding that semantic contract in product code before falling back to `getByTestId`
-
-### 3. Use web-first assertions
-
-Playwright assertions auto-wait and retry. Prefer them over manual state inspection.
-
-Prefer:
-
-- `await expect(page).toHaveURL(...)`
-- `await expect(locator).toBeVisible()`
-- `await expect(locator).toBeHidden()`
-- `await expect(locator).toBeEnabled()`
-- `await expect(locator).toHaveText(...)`
-
-Avoid:
-
-- `expect(await locator.isVisible()).toBe(true)`
-- custom polling loops for DOM state
-- `waitForTimeout` as synchronization
-
-If a condition genuinely needs custom retry logic, use Playwright's polling/assertion tools deliberately and keep that choice local and explicit.
-
-Use `expect.poll` for non-DOM truth such as API state, backend eventual consistency, generated resources, or captured browser events. For DOM state, use locator assertions so Playwright can apply actionability and web-first retry semantics.
-
-### 4. Let actions wait for actionability
-
-Locator actions already wait for the element to be actionable. Do not preface every click/fill with extra timing logic unless the action needs a specific visible/ready assertion for clarity.
-
-Good pattern:
-
-- assert a meaningful visible state when that is part of the behavior
-- then click/fill/select via locator APIs
-
-Bad pattern:
-
-- stack arbitrary waits before every action
-- wait on unstable implementation details instead of the visible state the user cares about
-
-### 5. Match debugging to the active harness
-
-Playwright supports traces, screenshots, page snapshots, and browser logs. Configure artifact capture at the runner boundary instead of adding parallel diagnostics to individual scenarios.
-
-## Review Questions
-
-- Would this locator survive DOM refactors that do not change user-visible behavior?
-- Is this assertion using Playwright's retrying semantics?
-- Is any explicit wait masking a real readiness problem?
-- Does this code preserve per-scenario isolation?
-- Is a new abstraction really needed, or does it bypass the runner's scenario-owned context and lifecycle?

.agents/skills/frontend-code-review/SKILL.md

@@ -1,48 +0,0 @@
----
-name: frontend-code-review
-description: Use only when the user explicitly requests a review or audit of frontend code under `web/` or `packages/dify-ui/`. Supports pending-change, file-focused, and pasted-diff reviews. Do not use for implementation-only requests, diagnosis without review intent, or backend-only code.
----
-
-# Frontend Code Review
-
-Review the requested scope for concrete, reproducible regressions. This skill owns the review phase and routes directly to its bundled rule packs. For a combined review-and-fix request, establish findings before applying implementation or testing guidance.
-
-## Evidence First
-
-1. Establish the review scope from the requested files or current diff.
-2. Read the changed lines, their behavior owner, and the nearest scoped `AGENTS.md`.
-3. Trace public consumers, generated contracts, primitive APIs, or runtime configuration only when they decide correctness.
-4. Report only findings tied to an observable failure, violated contract, security boundary, or demonstrated maintenance risk.
-
-## Rule Routing
-
-Read only the packs matched by the diff:
-
-- DOM semantics, focus, keyboard, forms, disabled state, or visible interaction: [`references/accessibility-ui.md`][accessibility]
-- Dify UI imports, Base UI wrappers, overlays, tokens, or primitive contracts: [`references/dify-ui.md`][dify-ui]
-- Component ownership, props, state, Effects, navigation, or module boundaries: [`references/component-architecture.md`][component-architecture]
-- Generated clients, Query, mutations, auth, SSR, URL state, or persistence: [`references/data-query-contracts.md`][data-query]
-- Test files or a concrete missing-regression-test finding: [`references/testing.md`][testing]
-- Bundle, waterfall, rendering, or subscription cost supported by evidence: [`references/performance.md`][performance]
-- Stable Dify runtime invariants in the named paths: [`references/dify-invariants.md`][dify-invariants]
-- General TypeScript or styling quality not owned above: [`references/code-quality.md`][code-quality]
-
-Read `packages/dify-ui/README.md`, `packages/dify-ui/AGENTS.md`, `web/docs/overlay.md`, or `web/docs/test.md` only when the reviewed code falls under that contract. Check current official documentation when local code and bundled references do not settle a framework, browser, or accessibility behavior.
-
-## Severity And Output
-
-- **P0**: security or privacy leak, data loss, production crash, or inaccessible critical workflow.
-- **P1**: user-visible regression, invalid API or authorization contract, hydration failure, or broken primary interaction.
-- **P2**: concrete maintainability, performance, test, or accessibility defect likely to cause incorrect behavior.
-- **P3**: minor actionable cleanup; omit unless the user requested a thorough audit.
-
-Lead with findings ordered by severity. Include a tight file and line reference, the failing contract or reproduction path, impact, and a concrete fix direction. If there are no findings, say `No issues found.` and state any material verification gap. Do not add praise sections, speculative risks, or an unsolicited offer to implement fixes.
-
-[accessibility]: references/accessibility-ui.md
-[code-quality]: references/code-quality.md
-[component-architecture]: references/component-architecture.md
-[data-query]: references/data-query-contracts.md
-[dify-invariants]: references/dify-invariants.md
-[dify-ui]: references/dify-ui.md
-[performance]: references/performance.md
-[testing]: references/testing.md

.agents/skills/frontend-code-review/references/accessibility-ui.md

@@ -1,109 +0,0 @@
-# Accessibility And UI Rules
-
-Accessibility findings are first-class review findings. Treat broken keyboard access, missing accessible names, focus loss, and unreachable popup content as correctness bugs, not polish.
-
-Before finalizing UI or accessibility findings, fetch the latest Web Interface Guidelines as a required baseline:
-
-```text
-https://raw.githubusercontent.com/vercel-labs/web-interface-guidelines/main/command.md
-```
-
-Do not treat that document as the complete accessibility rule set. Combine it with:
-
-- `packages/dify-ui/README.md`, `packages/dify-ui/AGENTS.md`, and the relevant primitive implementation when code uses `@langgenius/dify-ui/*`.
-- Base UI docs and local `.d.ts` contracts when primitive semantics, focus target, labels, or popup reachability are unclear.
-- MDN or relevant WAI-ARIA/browser standards when behavior, compatibility, or deprecation status matters.
-- The current feature's product semantics, because an accessible primitive can still be used in an inaccessible workflow.
-
-## Semantic HTML
-
-Flag:
-
-- Clickable `div` or `span` used for actions.
-- Router navigation implemented with button or `onClick` when a `Link` / `<a>` is the real semantic element.
-- Icon-only buttons without `aria-label` or `aria-labelledby`.
-- Decorative icons missing `aria-hidden="true"`.
-- Images without `alt`; use `alt=""` only when truly decorative.
-- Heading levels that skip hierarchy in page-level content.
-
-Prefer semantic HTML before ARIA.
-
-## Keyboard And Focus
-
-Flag:
-
-- Interactive elements without visible `focus-visible` treatment.
-- `outline-none` / `outline-hidden` without an equivalent focus-visible ring or state.
-- Custom interactive elements missing keyboard handling.
-- Focus trapped, lost, or sent to the wrong surface after dialog/popover/menu close.
-- Focus ring applied to the wrong DOM node. Verify the actual focus target, especially with Base UI controls such as Slider.
-
-Use `focus-visible` for keyboard focus. Use `focus-within` or `has-[:focus-visible]` when the visual wrapper is not the focused element.
-
-## Forms
-
-Flag:
-
-- Inputs, selects, switches, checkboxes, radios, comboboxes, or sliders without a label relationship.
-- Missing stable `name` on form fields that submit or validate.
-- Incorrect input `type`, `inputMode`, `autoComplete`, or `spellCheck` for email, token, URL, number, search, code, or username fields.
-- Labels that are not clickable.
-- Submit buttons disabled before a request starts, preventing normal submit behavior.
-- Non-submit buttons inside forms missing `type="button"`.
-- Errors not associated with fields or not reachable by screen readers.
-- Error recovery that does not focus or expose the first invalid field.
-- `onPaste` blocking paste.
-- Placeholder text used as the only label.
-- Password managers accidentally triggered on non-auth fields because autocomplete is missing or wrong.
-
-Prefer visible labels. If visible surrounding text already labels the control, use a visually hidden label or a precise `aria-label`.
-
-## Disabled, Loading, And Async States
-
-Flag:
-
-- Loading state without `aria-busy`, `role="status"`, or another accessible update path when it changes user interaction.
-- Spinner or decorative loading icon exposed to screen readers.
-- Disabled controls that hide the reason users cannot proceed.
-- `aria-disabled` used without manually blocking click, Space, and Enter.
-- Toasts, inline validation, or async status changes that are not announced when users need the update to continue.
-- Icon-only loading/error affordances without text or accessible status where the state matters.
-
-Use native `disabled` when the control must not be interactive. Use `aria-disabled` only when the element must remain focusable and the code handles all blocked interactions.
-
-For repeated shared disabled reasons, prefer a visible group message or badge plus native disabled controls. Use per-control popover/info only when the reason is item-specific.
-
-## Overlays And Popup Reachability
-
-Flag:
-
-- Tooltip used for long, structured, interactive, or unique information.
-- Tooltip content required to understand or complete a flow.
-- PreviewCard content that touch or screen-reader users cannot reach through the trigger's click destination.
-- Popover/dialog/menu triggers without accessible names.
-- Popup content without title/description where the primitive requires them.
-
-Use Popover for explanatory content, rich help, and infotips. Use Tooltip only as a short visual label for a trigger that already has an accessible name.
-
-## Long Content And Layout
-
-Flag:
-
-- Text in flex/grid children without `min-w-0` when it can overflow.
-- Names, labels, file names, model names, workspace names, or user content lacking `truncate`, `line-clamp`, or `break-words`.
-- Right-side icons, badges, checks, or actions that shrink before the text area.
-- Empty arrays or empty strings rendering broken layout instead of an empty state.
-- Button, tab, badge, chip, menu item, or card text that can overlap sibling controls at common viewport widths.
-
-The usual Dify layout chain is: container has width constraints, text region uses `min-w-0 flex-1 truncate`, adornments use `shrink-0`.
-
-## Motion, Images, And Copy
-
-Flag:
-
-- `transition-all`.
-- Animations that do not respect reduced motion.
-- Layout-affecting animation where transform/opacity would work.
-- Images without dimensions.
-- Loading copy using `...` instead of `…`.
-- Hardcoded dates, times, numbers, or currency formats instead of `Intl.*`.

.agents/skills/frontend-code-review/references/code-quality.md

@@ -1,68 +0,0 @@
-# Code Quality Rules
-
-## Scope Control
-
-Flag changes that expand beyond the requested feature or review scope:
-
-- Repo-wide cleanup mixed into a targeted fix.
-- Compatibility exports, aliases, shims, or wrapper layers added without an explicit migration requirement.
-- Shared abstractions created before there is stable cross-feature reuse.
-- Business components moved into generic shared locations without a clear ownership boundary.
-
-## TypeScript
-
-Flag:
-
-- `any` or broad `Record<string, any>` where generated/API types or local domain types exist.
-- Re-declared API shapes instead of importing generated or returned types.
-- Weak route/query param typing that leaks `string | string[] | undefined` deep into components.
-- Runtime wrappers added only to satisfy TypeScript when a narrower type boundary would preserve the existing runtime shape.
-
-Prefer:
-
-- Explicit domain names that match the API contract.
-- Type narrowing at route/API boundaries.
-- Small conversion helpers colocated with the component that needs them.
-
-## Styling
-
-Flag:
-
-- New CSS modules or ad hoc CSS when Tailwind utilities and Dify tokens cover the need.
-- Component-level plain `.css` files or component CSS imported through `globals.css`; use scoped `*.module.css` only when Tailwind and component variants cannot express the style.
-- Generic color utilities where Dify semantic tokens exist.
-- Hardcoded magic class values for colors, spacing, radius, shadow, z-index, or typography when Dify tokens, component variants, or documented radius mappings exist.
-- `!` important modifiers or important CSS overrides without a narrow, documented reason.
-- Manual string concatenation, template strings, array `.join(' ')`, or custom ternaries for conditional or multi-line classes.
-- JS conditional class branches for primitive visual states already exposed by Dify UI/Base UI `data-*` selectors.
-- Incoming `className` placed before default classes in `cn(...)`, preventing call-site overrides.
-- Arbitrary z-index or one-off layering fixes on overlays.
-
-Use:
-
-- `cn(...)` from the local package or utility already used by the file.
-- Dify semantic tokens and Tailwind v4 utilities.
-- Existing component variants before one-off class forks.
-- Primitive selectors such as `data-disabled:*`, `data-checked:*`, `data-highlighted:*`, `group-data-*`, `peer-data-*`, and `has-[:focus-visible]` before adding React state or boolean props solely for styling.
-- Component-level variants, semantic tokens, and normal cascade/order before `!` overrides. Use `!` only for a contained compatibility override that cannot be expressed through the component API or local selector structure.
-
-## Imports
-
-Flag:
-
-- Barrel imports from `@langgenius/dify-ui`; consumers must use subpath exports.
-- New overlay imports from legacy `@/app/components/base/modal`, `dialog`, or `drawer`.
-- Cross-feature imports that bypass explicit top-level public files.
-- Direct imports from generated/internal implementation files when a feature contract already exposes the intended surface.
-
-## Copy And i18n
-
-Flag:
-
-- User-facing hardcoded strings in `web/`.
-- Added or renamed i18n keys that are not present in every supported locale file for the touched namespace.
-- Translation namespace drift, especially using unrelated module namespaces for local feature copy.
-- Generic button labels like `Continue` where the action is specific.
-- Error messages that state only the failure and not the next step.
-
-Use feature-local translation keys by default. Alias only when crossing namespaces. `pnpm i18n:check --file <name>` should pass for any touched translation namespace.

.agents/skills/frontend-code-review/references/component-architecture.md

@@ -1,88 +0,0 @@
-# Component Architecture Rules
-
-Use these rules for React component structure, ownership, state, props, effects, and module organization.
-
-## Ownership
-
-Flag:
-
-- State, query, mutation, or handlers hoisted above the lowest component that actually uses them.
-- Parent components owning row/item actions that do not coordinate a workflow.
-- Prop drilling through multiple pass-through layers.
-- A page/tab-level section component becoming the data owner without needing a shared snapshot or shared loading/error/empty UI.
-- Feature code promoted to shared only because it appears once or might be reused later.
-
-Accept repeated TanStack Query calls in siblings when each component independently consumes the data. Cache deduplication is not a reason to hoist by itself.
-
-## Component Boundaries
-
-Flag:
-
-- React component files over 300 lines when the file mixes multiple responsibilities that can be split into focused colocated components, hooks, or utilities.
-- Shallow wrappers that only rename props or hide the real primitive.
-- Extra DOM wrappers that do not provide layout, semantics, accessibility, state ownership, or library integration.
-- Dialog/dropdown/popover hidden surfaces that obscure the parent flow when they should be extracted into a small local component.
-- Business forms, menu bodies, or one-off helpers moved away from their owner without reuse or semantic value.
-
-Prefer colocated components split by actual data and state needs.
-
-## Bad Component Design Patterns
-
-Flag:
-
-- Refactors of existing navigation, sidebar, dropdown, webapp list, or app-switching UI that do not preserve behavior-sensitive interactions such as expand/collapse arrows, hover persistence, pin/delete controls, routing, keyboard/focus handling, or open-state ownership.
-- Components that mix data fetching, mutation side effects, popup state, form validation, layout, and row rendering without a clear owner.
-- Generic components with many boolean props that encode one feature's workflow.
-- A shared component that imports feature-specific copy, routes, or API contracts.
-- A feature component that accepts pre-rendered fragments only to avoid placing ownership correctly.
-- A child component that receives both raw server data and separately derived flags for the same concept.
-- A wrapper that changes accessible semantics of the primitive it wraps.
-- A component that exposes controlled props but still keeps a competing private state for the same value.
-- A component that cannot render empty, loading, or missing optional API fields without caller-side preprocessing.
-
-When existing components already own interaction logic, prefer reusing or extending them. If a refactor is necessary, preserve the old interaction contract and add or update focused tests for changed behavior.
-
-## Props And Types
-
-Flag:
-
-- Declaration or export rewrites made only for stylistic uniformity, without changing an owned behavior or contract.
-- Named `Props` types for trivial one-off props where inline typing is clearer.
-- Props named by UI implementation instead of domain/API role.
-- API data converted too early or under a generic name that breaks traceability.
-- Callers duplicating fallback checks that the lowest rendering component already handles.
-
-Do not flag `FC`, `React.FC`, function declarations, arrow functions, named exports, or default exports by syntax alone. Report them only when the chosen form causes a concrete type, lifecycle, export, framework, or enforced package-contract defect.
-
-## Effects
-
-Flag effects that:
-
-- Transform props/state for rendering.
-- Copy one state value into another representing the same concept.
-- Handle user actions that belong in event handlers.
-- Reset state from props when a keyed reset, stable ID, or render-time derivation would work.
-- Fetch data that belongs in framework APIs or TanStack Query.
-
-If an effect remains, it must synchronize with a named external system: browser API, subscription, timer, analytics-on-visibility, non-React widget, or imperative DOM integration.
-
-## State Modeling
-
-Flag:
-
-- Storing derived booleans, disabled flags, default tabs, or loading labels that can be calculated from current query/feature state.
-- Local state used to fake server data or generated contract fields.
-- UI state persisted to localStorage when it is live app state.
-- Feature-local mock shells wired to unrelated existing APIs before the real API is confirmed.
-
-Prefer render-time derivation. Keep true local state for user choices, transient input, controlled popups, and feature UI state that has no server source.
-
-## Navigation
-
-Flag:
-
-- Imperative router navigation for ordinary links.
-- Button semantics used for navigation.
-- Navigation state hidden in component state when URL state is required for shareable filters, tabs, or pagination.
-
-Use `Link` for normal navigation. Use router APIs for mutation success, guarded redirects, command flows, or form submission side effects.

.agents/skills/frontend-code-review/references/data-query-contracts.md

@@ -1,74 +0,0 @@
-# Data, Query, And Contract Rules
-
-Use these rules for generated contracts, TanStack Query, mutations, auth/SSR boundaries, URL state, and client persistence.
-
-## Generated Contracts
-
-Flag:
-
-- New legacy service/helper wrappers around generated `queryOptions()` or `mutationOptions()`.
-- Continuing to use deprecated contract operations when a ready generated contract exists.
-- Assuming a generated file means an operation is ready without checking deprecated markers, schema shape, and the actual UI consumer.
-- Re-declaring API DTOs in components.
-- Adding compatibility layers instead of migrating the pointed line and deleting the old layer.
-
-Backend Pydantic and OpenAPI schemas own API shape. Generated clients and schemas under `packages/contracts/generated/*` are authoritative at frontend boundaries and use the `{ params, query?, body? }` input shape.
-
-## Queries
-
-Flag:
-
-- `enabled` used to hide missing required input instead of `input: skipToken`.
-- Fake fallback IDs or placeholder inputs used to force a query to run.
-- Query results copied into local state for rendering.
-- Shared query behavior such as invalidation, stale defaults, or retry rules reimplemented at call sites.
-- `prefetchQuery` treated as a hard gate or as returning data/errors to the caller.
-
-Use `useQuery(consoleQuery.xxx.queryOptions(...))` or `useQuery(marketplaceQuery.xxx.queryOptions(...))` directly unless a feature hook performs real orchestration.
-
-## Mutations
-
-Flag:
-
-- Deprecated `useInvalid` or `useReset`.
-- `mutateAsync` used without a need for Promise semantics.
-- Awaited mutations without `try/catch`.
-- Components owning shared cache invalidation that belongs in query defaults.
-- Optimistic updates that do not match current list/detail ownership.
-
-Use generated `mutationOptions()` directly when possible. Put shared cache behavior in `createTanstackQueryUtils(...experimental_defaults...)`.
-
-## SSR, Auth, And Route Boundaries
-
-Flag:
-
-- Request-time auth, setup, workspace role, or tenant decisions moved into static `next.config redirects()`.
-- Dynamic role gates depending on `workspaces.current` implemented as static path redirects.
-- Authorization logic depending on soft `prefetchQuery`.
-- Removing a client fallback before server API unavailable behavior is defined.
-- Global placeholder query contracts introduced to solve a route-local Suspense issue.
-- Branding-sensitive UI reading placeholder defaults without checking pending/placeholder state.
-
-Separate hard gates from soft prefetches. `fetchQuery` can be a server decision boundary; `prefetchQuery` is cache warmup.
-
-## Workspace And Tenant
-
-Flag:
-
-- Treating workspace switch as ordinary CRUD invalidation when the current app flow performs server switch plus full reload.
-- Query keys that omit workspace/tenant identity when the query truly varies by workspace and no full reload boundary applies.
-- Mixing `workspace_id` and `tenant_id` without tracing the current backend/API contract.
-
-Current Dify workspace switch should be reviewed as a tenant cache boundary first.
-
-## URL State And Local Storage
-
-Flag:
-
-- Shareable filters, tabs, pagination, selected panels, or search state hidden only in component state.
-- One-shot navigation signals modeled as subscribed persistent state.
-- Live app state stored in localStorage.
-- Direct `window.localStorage`, `globalThis.localStorage`, or raw storage calls in app code.
-- High-frequency interaction state persisted on every change instead of on commit/settle.
-
-Use URL state for shareable UI state, feature/Jotai/store state for live UI state, and `@/hooks/use-local-storage` only for low-frequency client-only preferences, dismissed notices, and UI defaults.

.agents/skills/frontend-code-review/references/dify-invariants.md

@@ -1,22 +0,0 @@
-# Dify Invariants
-
-Use these stable Dify-specific runtime rules in addition to the generic review packs.
-
-This file is not a place for active feature notes. Do not add rules for one branch, one PR, or a short-lived product decision such as a specific agent-v2, plugin, model-provider, or onboarding task. Keep a rule here only when all of these are true:
-
-- It is a stable Dify runtime invariant.
-- Generic React, TypeScript, accessibility, dify-ui, query, or performance rules would not catch it.
-- The failure mode is concrete enough to produce a file-line review finding.
-- The rule is likely to remain valid across normal feature work.
-
-## Workflow Nodes And RAG Pipe
-
-Flag:
-
-- Node components under `web/app/components/workflow/nodes/[nodeName]/node.tsx` importing workflow store hooks that are unavailable in RAG Pipe template rendering.
-- Node UI relying on provider context that is not mounted in every rendering surface.
-- Store reads in render where React Flow `useNodes` / `useEdges` provide the actual node/edge source.
-
-Known failure mode: workflow node components can also render while creating a RAG Pipe from a template. In that context there may be no workflowStore provider, causing a blank screen.
-
-Prefer React Flow hooks for node/edge UI consumption. Use store APIs only where the provider is guaranteed and the code path is workflow-only.

.agents/skills/frontend-code-review/references/dify-ui.md

@@ -1,141 +0,0 @@
-# Dify UI Rules
-
-Use these rules whenever a review touches `packages/dify-ui/` or code consuming `@langgenius/dify-ui/*`.
-
-Before finalizing findings for those files, read the current local docs that apply:
-
-- `packages/dify-ui/README.md`
-- `packages/dify-ui/AGENTS.md`
-- `web/docs/overlay.md` for floating UI
-- `packages/dify-ui/src/<primitive>/index.tsx` for the primitive being changed or consumed
-
-## Package Boundary
-
-Flag in `packages/dify-ui`:
-
-- Imports from `web/`.
-- Dependencies on Next.js, i18n, ky, Jotai, Zustand, TanStack Query, oRPC, or business APIs.
-- Business-specific component behavior that belongs in `web/`.
-- Multiple unrelated primitives in one component folder.
-
-`packages/dify-ui` is a primitive layer: Base UI headless components + `cva` + `cn` + Dify design tokens.
-
-## Imports And Exports
-
-Flag:
-
-- Consumer imports from `@langgenius/dify-ui` without a subpath.
-- Missing `package.json#exports` entry for a new primitive.
-- Internal package imports using workspace subpaths instead of relative paths.
-- Exported props using internal-only types that consumers cannot import from the component subpath.
-- Canonical primitive boundaries or their associated public types using a redundant `Root` suffix when no higher-level convenience component exists in the same subpath.
-
-Consumers use subpath exports such as `@langgenius/dify-ui/button`.
-
-Canonical boundaries use the primitive name and matching public types (`Select` / `SelectProps`). Keep `Root` only to distinguish a low-level anatomy root from a higher-level convenience component (`CheckboxRoot` / `Checkbox`); implementation aliases should still show their Base UI source (`BaseSelect.Root.Props`).
-
-## Props And State
-
-Flag:
-
-- Flattened props where related values need a discriminated union, such as `value` / `defaultValue`, `multiple` / `value`, or `clearable` / `onChange`.
-- React state used only to mirror Base UI state for class names.
-- JavaScript conditional class logic for visual states that the Dify UI/Base UI primitive already exposes through `data-*` attributes or CSS variables.
-- Controlled props added when uncontrolled DOM state or CSS variables would be enough.
-- Thin wrappers that rename Base UI parts without adding semantics.
-- Generic Base UI selection primitives wrapped without preserving their value generics, such as `Select.Root<Value, Multiple>`, `RadioGroup<Value>`, or `Radio.Root<Value>`.
-- Shared select/radio option components that type selected values as `string` while callers pass enums, unions, booleans, numbers, objects, or nullable placeholder values.
-
-Prefer Base UI/Dify UI data attributes and CSS variables for visual state: `data-open`, `data-checked`, `data-disabled`, `data-highlighted`, `data-popup-open`, `group-data-*`, `peer-data-*`, `has-[:focus-visible]`, and primitive CSS variables such as anchor width or transform origin. Use JS conditional classes for product/business state that the primitive does not expose.
-
-For non-string `Select` and `RadioGroup` values, prefer explicit domain generics at the root and at child value carriers. JSX children do not inherit the parent generic, so `RadioGroup<PromptMode>` should compose with `Radio<PromptMode>`, `RadioItem<PromptMode>`, or option values from a typed collection. For `Select`, prefer the Base UI `items` collection pattern for typed value-to-label rendering, and flag string coercion helpers used only to recover display labels.
-
-## Forms
-
-Flag:
-
-- Form-like UI using unrelated `Input` and `Button` pieces without a submit boundary.
-- Text-like fields not composed through `Field`, `FieldLabel`, and `FieldControl` when using Dify UI form semantics.
-- Select fields using `FieldLabel` instead of `SelectLabel`.
-- Slider fields using a generic label instead of `SliderLabel`.
-- Checkbox/radio groups missing `Fieldset` and `FieldsetLegend`.
-- Field errors or descriptions rendered without `FieldDescription` / `FieldError` relationships.
-
-`Form` is the submit boundary. Dify UI form primitives are not a form state-management framework; business validation and schema-driven behavior belong in `web/`.
-
-## Overlay Contract
-
-Flag:
-
-- Legacy web overlay imports in new or modified code.
-- Manual portals around Dify UI overlay primitives.
-- Call-site `z-*` overrides on overlays.
-- Missing root `isolation: isolate` assumptions when debugging overlay stacking.
-- Repeated backdrop, z-index, or portal chrome at call sites.
-- Tooltip used for infotips, long text, or interactive content.
-
-All Dify UI body-portalled overlays use `z-50`. Toast uses `z-60`. DOM order handles stacking between overlays.
-
-## Primitive Selection
-
-Flag:
-
-- `Tabs` used for simple mode/filter/view selection where `SegmentedControl` is the semantic primitive.
-- `SegmentedControl` used where `tablist` / `tabpanel` semantics are required.
-- `Select` used for searchable or free-form input.
-- `Combobox` used for unrestricted search text where no selected option is remembered.
-- `Autocomplete` used for closed-list selection.
-- Tooltip or PreviewCard used for content that must be reachable on touch or by screen readers.
-
-Use:
-
-- `Autocomplete` for free-form text with optional suggestions.
-- `Combobox` for searchable selected values from a collection.
-- `Select` for closed, scannable option sets.
-- `Popover` for infotips, help text, rich content, or interactions.
-
-## Bad Usage Patterns To Flag
-
-Flag:
-
-- Manually recreating UI behavior or chrome already owned by `@langgenius/dify-ui/*` or `web/app/components/base/*`, such as buttons, inputs, toggle groups, popovers, dropdown menus, alert dialogs, switches, avatars, scroll areas, toasts, borders, focus states, disabled states, segmented controls, or existing feature components.
-- Styling a raw Base UI primitive directly in `web/` when a Dify UI primitive exists.
-- Wrapping a Dify UI primitive in a feature component that hides its label, error, disabled, or focus contract.
-- Replacing a semantic primitive with a generic `div` plus classes to match a screenshot.
-- Using `Tooltip` because it is visually convenient when the content is actually help text or needs touch access.
-- Adding a `z-*` override to make a child popup appear over a parent dialog.
-- Adding a new app-level wrapper around Dialog, Drawer, Popover, Select, or Combobox that repeats portal/backdrop/positioner logic.
-- Using dify-ui `Input` as a drop-in replacement for legacy inputs that include search, clear, copy, unit, localized placeholder, or number normalization behavior.
-- Building a form row from loose text and controls instead of the matching Field/Form primitives.
-- Adding component state only to style `data-open`, `data-checked`, `data-disabled`, or highlighted states that Base UI already exposes.
-- Passing booleans down only so children can toggle classes already expressible with primitive `data-*` selectors.
-
-## Tokens, Radius, And Styling
-
-Flag:
-
-- `radius-*` class names.
-- Custom Tailwind `borderRadius` extension for Figma radius values.
-- Generic colors where semantic Dify tokens exist.
-- Hardcoded design values where Dify tokens, component variants, or documented Figma radius mappings exist.
-- `!` important modifiers used to fight primitive styles instead of fixing the variant, selector, or component composition.
-- Manual class strings that duplicate primitive variants.
-- `min-w-(--anchor-width)` on picker popups when it defeats viewport clamping.
-
-Use the Figma radius mapping from `packages/dify-ui/README.md`; for example `--radius/sm` maps to `rounded-md`, and `--radius/md` maps to `rounded-lg`.
-
-Use `!` only for a tightly scoped compatibility override after confirming the primitive API, data attributes, and selector structure cannot express the state.
-
-## Focus Details
-
-Flag focus rings attached to the wrong element. For example, Base UI `Slider.Thumb` focuses an internal `input[type=range]`, so the visible thumb wrapper needs `has-[:focus-visible]` rather than direct wrapper `focus-visible`.
-
-## Custom SVG Icons
-
-Flag:
-
-- New generated React icon components or JSON files under `web/app/components/base/icons/src/...` for custom SVG icons.
-- Custom SVG icons consumed outside the Tailwind `i-custom-*` icon class pipeline.
-- Generated `packages/iconify-collections/custom-*/icons.json` diffs where unrelated existing icons lost or changed intrinsic `width` or `height`.
-
-New custom SVG icons belong in `packages/iconify-collections/assets/...`. Regenerate with `pnpm --filter @dify/iconify-collections generate`, validate with `pnpm --filter @dify/iconify-collections check:dimensions`, and consume the generated icon with Tailwind `i-custom-*` classes.

.agents/skills/frontend-code-review/references/performance.md

@@ -1,78 +0,0 @@
-# Performance Rules
-
-Review performance only where there is realistic impact. Do not request `memo`, `useMemo`, `useCallback`, virtualization, or caching as style preferences.
-
-## Async Waterfalls
-
-Flag:
-
-- Awaiting remote feature flags or fetches before checking cheap synchronous conditions.
-- Sequential awaits for independent operations.
-- API routes or server components starting requests late when they could start early.
-- Nested per-item fetches running serially when each item can fetch in parallel.
-- Suspense boundaries that force the whole page to wait when a lower boundary could stream or isolate loading.
-
-Prefer `Promise.all` for independent work and branch-local awaits for conditionally needed data.
-
-## Bundle Size
-
-Flag:
-
-- Barrel imports from heavy libraries or `@langgenius/dify-ui`.
-- Dynamic paths that prevent static trace analysis.
-- Heavy components loaded eagerly when hidden behind a dialog, tab, command, or feature activation.
-- Analytics, logging, editor, visualization, or third-party SDK code loaded before it is needed.
-- Feature-local optional modules imported at top level only for rare flows.
-
-Use direct imports and `next/dynamic` where the user-visible path benefits.
-
-## Server Rendering
-
-Flag:
-
-- Request-specific mutable state stored at module scope in SSR/RSC paths.
-- Large duplicate data serialized across RSC/client boundaries.
-- Static I/O repeated per request when it could be hoisted safely.
-- Cross-request cache without a bounded invalidation strategy.
-- Server actions lacking API-route-equivalent auth checks.
-
-Use request-scoped deduplication such as `React.cache()` when repeated server reads in one request are the problem.
-
-## Re-rendering
-
-Flag:
-
-- Effects or subscriptions reading broad state when a derived boolean or narrower selector is enough.
-- Components defined inside components.
-- Derived rendering state stored in state/effects.
-- Non-primitive default props recreated for memoized children.
-- Expensive work recalculated on every render where it affects real interaction cost.
-- High-frequency transient values stored in state when refs or CSS variables would avoid render loops.
-
-Do not flag simple primitive expressions wrapped or not wrapped in `useMemo`; prefer no memo for simple work.
-
-Require stable object/array/function identity only when:
-
-- The child is memoized and identity affects renders.
-- The value is an effect/query dependency.
-- A library API requires stable references.
-- Profiling or local behavior shows avoidable re-rendering.
-
-## DOM, Lists, And Rendering
-
-Flag:
-
-- Layout reads in render (`getBoundingClientRect`, `offset*`, `scrollTop`).
-- Interleaved DOM reads/writes that can cause layout thrashing.
-- Large lists rendering without virtualization, pagination, or `content-visibility`.
-- SVG/animation code animating expensive properties when transform/opacity would work.
-- `transition-all`.
-- Long-running non-critical browser work performed immediately instead of idle/deferred scheduling.
-
-## React Flow
-
-For workflow React Flow components, keep this Dify-specific rule:
-
-- UI consumption should use React Flow hooks such as `useNodes` / `useEdges`.
-- Callback-only reads or mutations can use `useStoreApi`.
-- Node components under `web/app/components/workflow/nodes/[nodeName]/node.tsx` must not depend on workflow stores that are absent in RAG Pipe template rendering.

.agents/skills/frontend-code-review/references/testing.md

@@ -1,36 +0,0 @@
-# Testing Review Rules
-
-`web/docs/test.md` is the canonical frontend testing policy. Use this file only to translate that policy into review findings.
-
-## Request Missing Tests When Risk Justifies Them
-
-Flag missing coverage when a change alters a reachable contract such as:
-
-- User interaction, navigation, form submission, validation, or permissions.
-- Query or mutation behavior, URL state, persistence, or one-shot signals.
-- Loading, error, empty, and recovery states that users can encounter.
-- Accessibility-critical labels, keyboard flow, focus, disabled state, or overlay behavior.
-- A regression-prone business rule or bug fix that can be reproduced through a public boundary.
-
-Do not request tests for mechanical changes, pass-through wrappers, implementation details, or visual-only styling unless they affect behavior. Low coverage alone is not a finding.
-
-## Flag Low-Value or Fragile Tests
-
-Flag tests that:
-
-- Assert internal state, refs, hook usage, effect dependencies, private DOM structure, or cosmetic classes.
-- Exist only to render a component, exercise a prop, or cover generic invalid inputs without a product scenario.
-- Mock away the behavior under review or use mocks that do not match the public contract.
-- Add production `data-testid` attributes where semantic markup would work.
-- Use fake timers without timer behavior, leave async work unawaited, or leak shared state.
-- Duplicate a contract already protected at a more useful owner boundary.
-
-## Review the Test Boundary
-
-- Prefer semantic queries and accessible names.
-- Prefer real feature components when integration semantics matter.
-- Allow intentional child or provider mocks when setup would dominate the test and that boundary is covered independently.
-- Do not accept semantically inaccurate mocks of Dify UI or legacy base primitives.
-- Require a real-browser or visual verification plan when `happy-dom` cannot represent the risk.
-
-Treat test quality, determinism, and regression value as the review criteria. Do not use test count or coverage percentage as a proxy for quality.

.agents/skills/frontend-testing/SKILL.md

@@ -1,16 +0,0 @@
----
-name: frontend-testing
-description: Use when writing or changing Vitest or React Testing Library tests under `web/` or `packages/dify-ui/`, or when the user explicitly requests frontend test strategy, including evaluation of an existing strategy. Do not use for frontend code-review-only requests, general testability discussion, Python tests, or Cucumber/Playwright E2E.
----
-
-# Frontend Testing
-
-`web/docs/test.md` is the single policy owner. Read it before changing frontend tests; this skill adds no separate requirements.
-
-1. Identify the observable contract and regression risk.
-2. Choose the smallest boundary that includes the behavior owner.
-3. Establish the failing case first when practical, then implement one coherent scenario.
-4. Run the focused spec before the affected suite and relevant static checks.
-5. Report the behavior verified and any remaining browser, visual, or end-to-end risk.
-
-Recommend deleting low-value tests as readily as adding missing behavior coverage. Use `web/docs/test.md` for policy and Web commands; use the `packages/dify-ui/README.md` Development section for Dify UI commands.

.agents/skills/how-to-write-component/SKILL.md

@@ -1,41 +0,0 @@
----
-name: how-to-write-component
-description: Use when implementing or refactoring React/TypeScript components and the task requires decisions about component ownership, feature boundaries, state, data flow, effects, or interaction ownership. Do not use for review-only requests, test-only work, copy-only edits, or styling-only changes.
----
-
-# How To Write A Component
-
-Use this skill to route component architecture decisions to its bundled references. Read only the references required by the current change.
-
-## First Decisions
-
-| Question | Default | Promote only when |
-| --- | --- | --- |
-| Where should code live? | In the product workflow, route, or feature owner. | Several verticals need the same stable contract. |
-| Who owns state and handlers? | The lowest visual owner that consumes them. | A parent coordinates one workflow or consistent snapshot. |
-| Should state enter Jotai? | Keep component and form state local. | Siblings need one source of truth or scoped workflow persistence. |
-| Who owns URL state? | Next.js route APIs and `nuqs`. | Atoms require a read-only route-identity bridge. |
-| Who owns remote state? | TanStack Query at the lowest consumer. | Atom state drives the query or shared derivations consume it. |
-| Is a wrapper needed? | Use the primitive or direct code. | The wrapper owns behavior, validation, state, or semantics. |
-| Is an Effect needed? | Derive during render or handle the user action. | A named external system must be synchronized. |
-
-## Topic Routing
-
-- Component moves, module boundaries, props, types, or owner placement: read [`references/ownership.md`][ownership].
-- Jotai, form drafts, route identity, URL state, or persistence: read [`references/state.md`][state].
-- Generated contracts, nullable API data, Query, mutations, SSR, auth, or workspace state: read [`references/data.md`][data].
-- Hotkeys, focus, dialogs, menus, popovers, or other secondary surfaces: read [`references/interactions.md`][interactions] and the overlay guide it references when applicable.
-- Effects, navigation, memoization, preloading, or render cost: read [`references/runtime.md`][runtime].
-
-## Workflow
-
-1. Identify the behavior owner and the public contract being changed.
-2. Read the nearby implementation, tests, and only the routed skill references.
-3. Implement one coherent vertical slice. Do not expand into equivalent patterns elsewhere unless the current contract cannot be completed without them.
-4. Verify observable behavior at the narrowest sufficient boundary, then run the checks documented by the owning package: `web/docs/test.md` or `web/docs/lint.md` for Web, and the `packages/dify-ui/README.md` Development section for Dify UI.
-
-[data]: references/data.md
-[interactions]: references/interactions.md
-[ownership]: references/ownership.md
-[runtime]: references/runtime.md
-[state]: references/state.md

.agents/skills/how-to-write-component/references/data.md

@@ -1,42 +0,0 @@
-# Component Data And Queries
-
-Read this document when a component consumes generated contracts, nullable API values, TanStack Query, mutations, prefetching, authentication, or workspace state.
-
-## Generated Contracts
-
-- Treat generated contracts as authoritative at API, query, mutation, cache, and service boundaries. Enterprise APIs use `packages/contracts/generated/enterprise/*`.
-- Backend Pydantic and OpenAPI schemas own API shape. Follow the generated `{ params, query?, body? }` input shape; when it is wrong, fix the backend schema and regenerate `packages/contracts/generated/*`.
-- Do not hand-write DTO mirrors, widen generated fields or enums, edit generated output, or add a parallel frontend status layer unless it models product state absent from the API.
-- Check deprecated markers, schema shape, and the actual consumer before assuming that a generated operation is ready to use.
-- Normalize only at real boundaries such as user input, search, URL params, filenames, DOM IDs, or a required legacy adapter.
-- Preserve `null`, `undefined`, and intentional empty strings until the final boundary. Do not use `value || undefined` when an empty string means clearing a field.
-- Build required values in the branch that proves them. Avoid `filter(Boolean)`, truthiness filters, non-null assertions after filters, and placeholder values used only to satisfy types.
-
-## Queries
-
-- Use generated options directly with `useQuery(consoleQuery.xxx.queryOptions(...))`, `marketplaceQuery`, or the equivalent generated client.
-- If query input comes from atom state, keep it in `atomWithQuery`; do not unwrap the atom in a component solely to call `useQuery`.
-- For missing required input, branch the whole generated input with `skipToken`. Add `enabled` only for an independent execution condition; do not put `skipToken` inside a placeholder payload or coerce IDs to empty strings.
-- Return generated `queryOptions()`, `infiniteOptions()`, or `mutationOptions()` directly from TanStack Query atoms. Pass supported options into the generated call instead of spreading into a parallel object.
-- Share the exact options between prefetch and render when they represent the same request. Do not extract option helpers merely to reuse input construction.
-- Avoid pass-through service hooks that only rename generated options. Keep feature hooks for actual orchestration or shared domain behavior.
-
-## Mutations And Cache
-
-- Use generated `mutationOptions()` directly for owner-local mutations.
-- Put shared invalidation, retries, and cache behavior in `createTanstackQueryUtils(...experimental_defaults...)`. Local callbacks may own toast, close, and navigation effects but must not replace shared cache policy.
-- Prefer `mutate(...)`. Use `mutateAsync(...)` only when Promise composition is required, and catch awaited failures.
-- Preserve intentional empty values and current list/detail ownership when updating data. Do not add optimistic updates without a verified owner contract.
-
-## Prefetch And Hidden Surfaces
-
-- Prefetch expensive secondary content from the trigger or menu-open event when it benefits the visible path. Do not mount hidden subscribers solely to warm the cache.
-- `prefetchQuery` is cache warmup, not an authorization or availability gate. Use a hard fetch boundary when the server must decide whether rendering may proceed.
-
-## SSR, Authentication, And Workspace
-
-- Static configuration owns path-invariant routing. Request-dependent authentication, setup, role, and tenant decisions belong to SSR or runtime decision boundaries.
-- Distinguish soft SSR cache warming from authoritative decisions. Prefetched or placeholder data must not grant access or represent successful availability.
-- Never reuse tenant-scoped state after switching workspaces. Discard it at the switch boundary or isolate it by workspace identity.
-- Do not make product or authorization decisions from bootstrap defaults. Wait for authoritative data, or render an explicit loading or error state.
-- Keep loading and Suspense behavior inside the feature that owns the request. Do not add fake global data merely to bypass that boundary.

.agents/skills/how-to-write-component/references/interactions.md

@@ -1,31 +0,0 @@
-# Component Interactions And Overlays
-
-Read this document when a change involves application hotkeys, focus, dialogs, menus, popovers, or other secondary surfaces. Overlay primitive selection and layering are owned by the [overlay guide].
-
-## Focus And Semantics
-
-- Preserve a visible focus indicator on the final focusable element. Styled Dify UI controls usually provide it; headless anatomy parts and direct trigger exports may not.
-- Native buttons, links, custom trigger renderers, clickable rows, icon controls, and menu-like items must retain their correct native semantics and accessible name.
-- Do not hide an outline without an equivalent visible `focus-visible` treatment. Follow an existing Dify UI pattern rather than inventing a call-site style.
-
-## Keyboard Commands
-
-- Distinguish application commands from widget-local keyboard semantics. Use `@tanstack/react-hotkeys` for application commands; keep menu navigation, dialog Escape handling, editor behavior, and ARIA widget keys in their local primitive or owner.
-- Use `useHotkey` or `useHotkeys` for registered commands. When an existing `onKeyDown` intentionally owns the command, use `matchesKeyboardEvent` rather than duplicating modifier parsing or adding another global listener.
-- Keep registration and keycap or menu display derived from one canonical command. Distinguish registered commands, held keys, and display-only accelerators.
-- Keep a single-owner command beside its component. Create a feature-local hotkey module only when several production files share it; tests alone do not justify extraction.
-- Make availability and scope explicit with `enabled`, `ignoreInputs`, and `target`. Put a target ref on the actual behavior owner rather than creating wrapper DOM solely for hotkey scope.
-- Preserve existing `preventDefault` and propagation behavior when migrating command APIs.
-- Test observable command behavior, disabled and input scope, target scope, and the registration/display contract at the owning feature boundary.
-
-## Secondary Surfaces
-
-- Follow `web/docs/overlay.md` for primitive choice. Dify UI primitives are the default, with package-approved Web wrappers such as `Infotip` where the overlay guide allows them.
-- Separate behavior ownership from placement ownership: the action may own trigger, open state, and menu content while the caller owns slots, offsets, and alignment.
-- Keep menu and dialog surfaces as siblings when a menu command opens a dialog. Mount the dialog outside popup content.
-- Mount controlled overlays unconditionally unless unmounting is required for performance or reset semantics. Prefer keyed or owner-local reset over conditional wrappers.
-- Put query and mutation work inside dialog or alert-dialog content when it should mount only after opening.
-- Prefer uncontrolled roots when the primitive can own open state. Use controlled state only for business coordination, analytics, cleanup, or explicit reset behavior.
-- Do not add manual portals or call-site z-index escalation. Fix ownership and stacking structure at the shared boundary.
-
-[overlay guide]: ../../../../web/docs/overlay.md

.agents/skills/how-to-write-component/references/ownership.md

@@ -1,39 +0,0 @@
-# Component Ownership And Modules
-
-Read this document when adding, moving, splitting, or refactoring React components or feature modules.
-
-## Vertical Modules
-
-- Organize code by product workflow, route, or behavior owner. Keep components, hooks, local types, atoms, query helpers, tests, and small utilities beside the code that changes with them.
-- Name page and tab folders after the current route, tab, or user-visible surface. Do not preserve stale parent groupings that no longer own multiple surfaces.
-- Split a growing page or tab by product or visual owners. Keep the feature root for its public entrypoint and genuinely cross-owner coordination.
-- Import other features only through explicit public entrypoints. Avoid barrels that merely re-export secondary owners.
-- Promote code outside a feature only when multiple verticals use the same stable contract. Possible future reuse is not sufficient.
-
-## Component Ownership
-
-- Put state, data access, loading, empty, error, and handlers in the lowest visual owner that uses them.
-- Keep coordination in a parent only when it needs one consistent snapshot or coordinates submission, shared selection, batch behavior, navigation, or cross-section loading and errors.
-- Repeated TanStack Query calls in siblings are acceptable when each sibling independently consumes the data; the cache already deduplicates requests.
-- Pass stable domain identity across boundaries. Do not pass raw server data together with separately derived flags for the same concept.
-- One pass-through prop layer is acceptable. Repeated forwarding means ownership should move closer to the consumer or into feature-scoped shared state.
-- Do not replace prop drilling with one large view-model hook. Move each query, derived value, and handler to the concrete owner that consumes it.
-- Keep source selection, defaults, validation, dirty checks, and payload shaping beside the workflow that owns submission.
-
-## Boundaries
-
-- State-heavy wizards, drawers, modals, and secondary workflows can form a small vertical surface with an entrypoint, optional feature-local state, and shallow owners matching real visual regions.
-- The entrypoint owns route integration, provider wiring, close behavior, and mounting. Composition owners handle workflow branches; the closest visual owner handles section branches.
-- Separate hidden dialogs, dropdowns, and popovers into small local owners when their content obscures the parent flow.
-- Keep cohesive forms, menu bodies, and one-off helpers local unless they have their own state, reuse, or semantic boundary.
-- Avoid wrapper components and wrapper DOM that only rename props, pass children through, or hide the real primitive. A wrapper must own behavior, validation, state, accessibility, layout, or library integration.
-- Loading states for page sections, cards, lists, tables, forms, and drawers should use skeletons scoped to the loaded content. Reserve spinners for small inline busy indicators.
-
-## Components And Types
-
-- Choose component declaration and export forms from the actual component contract, framework requirements, and enforced package rules. Existing style is context, not authority; do not rewrite unaffected code solely to normalize `FC`, `function`, arrow-function, named-export, or default-export forms.
-- Type simple one-off props inline. Name a `Props` type when it is reused, exported, complex, or materially clearer.
-- Use API-generated or API-returned types at component boundaries. Keep one-off UI refinements and conversions beside their owner.
-- Preserve domain value types for selections. Do not widen enums, unions, booleans, numbers, objects, or nullable values to `string` before a real boundary requires it.
-- Avoid generic `common.tsx` buckets and aliases that only rename another type. Name files, values, and public types after their domain role.
-- Put fallback and invariant checks in the lowest component that already renders that state. Do not extract helpers whose only purpose is hiding missing display data.

.agents/skills/how-to-write-component/references/runtime.md

@@ -1,23 +0,0 @@
-# Component Effects, Navigation, And Runtime Cost
-
-Read this document when a change introduces Effects, navigation side effects, memoization, preloading, or render-cost optimizations.
-
-## Effects
-
-- Use Effects only to synchronize with a named external system such as a browser API, subscription, timer, analytics integration, non-React widget, or imperative DOM API.
-- Do not use Effects to transform render state, handle user actions, copy query data, reset state from props, or fetch data owned by framework APIs or TanStack Query.
-- Initialize query-backed forms with keyed remounts or surface-entry hydration instead of copying data through Effects.
-
-## Navigation
-
-- Use `Link` for ordinary navigation.
-- Use router APIs for command-flow side effects such as mutation success, guarded redirects, or form submission.
-- Keep shareable navigation state in the URL rather than hidden component state.
-
-## Runtime Cost
-
-- Move changing state to the smallest consumer before considering memoization. Stable parent content can be lifted and passed as children.
-- Avoid `memo`, `useMemo`, and `useCallback` unless identity or computation has a demonstrated consumer or measurable cost.
-- Start independent remote work together and await it near the branch that consumes it. Avoid introducing request waterfalls.
-- Load heavy optional surfaces on demand when they sit behind a dialog, tab, command, or feature activation.
-- Use narrow selectors or field-level atoms for broad stores and subscriptions. Do not optimize simple primitive expressions merely for stylistic consistency.

.agents/skills/how-to-write-component/references/state.md

@@ -1,38 +0,0 @@
-# Component State And URL Ownership
-
-Read this document when a change involves Jotai, form drafts, route identity, shared client state, or local persistence.
-
-## Choose The Owner
-
-- Keep synchronous state local when one component owns it: dialog and menu state, confirmations, field drafts, and local selections usually belong to the component or DOM.
-- Use feature-scoped Jotai when siblings need one source of truth, values drive other atoms, or a scoped workflow must preserve state across hidden or unmounted steps.
-- Keep server and cache state in TanStack Query. Use existing feature stores for complex, high-frequency interaction state such as workflow canvas drag, resize, and runtime panels.
-- Use feature-owned storage only for low-frequency client preferences, dismissed notices, and UI defaults. Live application state does not belong in local storage.
-
-## Forms
-
-- Prefer uncontrolled Dify UI form and field controls when values are only read at submit time. Initialize query-backed defaults with `defaultValue` and keyed remounts.
-- Promote form values to atoms only when another owner reacts to in-progress values, the draft must survive scoped unmounting, or several workflow steps edit the same draft.
-- Keep validation, source priority, fallback behavior, dirty checks, and payload assembly in the workflow that owns submission.
-
-## Route And URL State
-
-- Treat `useParams`, route arguments, and `nuqs` as the owners of URL identity and updates.
-- Hydrate a primitive atom at the route or surface boundary only when query atoms or shared derived atoms require route identity. Keep URL writes in route and query-state APIs.
-- Within one route-owned feature, choose one route-identity source. Do not hydrate route identity into atoms while also threading the same ID through multiple component layers.
-- Put shareable filters, tabs, pagination, and search state in the URL. Keep one-shot navigation signals and transient UI state out of persistent subscriptions.
-
-## Jotai And Query
-
-- A Jotai-backed feature may keep one feature-local state module ordered by dependency: types and constants, primitives, query atoms, query-data derivations, business facts, commands, mutations, submission orchestration, and provider exports.
-- Use `atomWithQuery` or `atomWithMutation` for async work driven by atom state. Do not hand-roll loading, error, or in-flight state for atom-orchestrated work.
-- Use field-specific derived atoms for query results. `jotai-tanstack-query` does not provide TanStack Query tracked properties, so reading a whole query atom subscribes to the entire observer result.
-- Leave query and mutation atoms unscoped so they retain the shared QueryClient cache. Scope resettable primitives and hydration tuples; scope a derived atom only when all dependencies should be private to the surface.
-- Use non-null lazy primitives for values always hydrated by a scope provider. Name derived atoms as business facts and write atoms as user or workflow commands.
-- Keep independent dialog lifecycles separate. A scoped open-state atom is acceptable only when composed sibling surfaces would otherwise pass confusing lifecycle props through unrelated owners.
-
-## Persistence
-
-- Use feature-owned storage modules built on `createLocalStorageState`; callers should not scatter direct storage access or raw keys.
-- Persist high-frequency interaction state only on commit or after updates settle.
-- Do not add ad hoc global event listeners for shared state. Centralize subscriptions through the owning atom, store, or subscription hook.

.claude/settings.json

@@ -11,5 +11,10 @@
         ]
       }
     ]
+  },
+  "enabledPlugins": {
+    "feature-dev@claude-plugins-official": true,
+    "context7@claude-plugins-official": true,
+    "ralph-loop@claude-plugins-official": true
   }
 }

.claude/skills/backend-code-review

@@ -1 +0,0 @@
-../../.agents/skills/backend-code-review

.claude/skills/component-refactoring/SKILL.md

@@ -0,0 +1,483 @@
+---
+name: component-refactoring
+description: Refactor high-complexity React components in Dify frontend. Use when `pnpm analyze-component --json` shows complexity > 50 or lineCount > 300, when the user asks for code splitting, hook extraction, or complexity reduction, or when `pnpm analyze-component` warns to refactor before testing; avoid for simple/well-structured components, third-party wrappers, or when the user explicitly wants testing without refactoring.
+---
+
+# Dify Component Refactoring Skill
+
+Refactor high-complexity React components in the Dify frontend codebase with the patterns and workflow below.
+
+> **Complexity Threshold**: Components with complexity > 50 (measured by `pnpm analyze-component`) should be refactored before testing.
+
+## Quick Reference
+
+### Commands (run from `web/`)
+
+Use paths relative to `web/` (e.g., `app/components/...`).
+Use `refactor-component` for refactoring prompts and `analyze-component` for testing prompts and metrics.
+
+```bash
+cd web
+
+# Generate refactoring prompt
+pnpm refactor-component <path>
+
+# Output refactoring analysis as JSON
+pnpm refactor-component <path> --json
+
+# Generate testing prompt (after refactoring)
+pnpm analyze-component <path>
+
+# Output testing analysis as JSON
+pnpm analyze-component <path> --json
+```
+
+### Complexity Analysis
+
+```bash
+# Analyze component complexity
+pnpm analyze-component <path> --json
+
+# Key metrics to check:
+# - complexity: normalized score 0-100 (target < 50)
+# - maxComplexity: highest single function complexity
+# - lineCount: total lines (target < 300)
+```
+
+### Complexity Score Interpretation
+
+| Score | Level | Action |
+|-------|-------|--------|
+| 0-25 | 🟢 Simple | Ready for testing |
+| 26-50 | 🟡 Medium | Consider minor refactoring |
+| 51-75 | 🟠 Complex | **Refactor before testing** |
+| 76-100 | 🔴 Very Complex | **Must refactor** |
+
+## Core Refactoring Patterns
+
+### Pattern 1: Extract Custom Hooks
+
+**When**: Component has complex state management, multiple `useState`/`useEffect`, or business logic mixed with UI.
+
+**Dify Convention**: Place hooks in a `hooks/` subdirectory or alongside the component as `use-<feature>.ts`.
+
+```typescript
+// ❌ Before: Complex state logic in component
+const Configuration: FC = () => {
+  const [modelConfig, setModelConfig] = useState<ModelConfig>(...)
+  const [datasetConfigs, setDatasetConfigs] = useState<DatasetConfigs>(...)
+  const [completionParams, setCompletionParams] = useState<FormValue>({})
+  
+  // 50+ lines of state management logic...
+  
+  return <div>...</div>
+}
+
+// ✅ After: Extract to custom hook
+// hooks/use-model-config.ts
+export const useModelConfig = (appId: string) => {
+  const [modelConfig, setModelConfig] = useState<ModelConfig>(...)
+  const [completionParams, setCompletionParams] = useState<FormValue>({})
+  
+  // Related state management logic here
+  
+  return { modelConfig, setModelConfig, completionParams, setCompletionParams }
+}
+
+// Component becomes cleaner
+const Configuration: FC = () => {
+  const { modelConfig, setModelConfig } = useModelConfig(appId)
+  return <div>...</div>
+}
+```
+
+**Dify Examples**:
+- `web/app/components/app/configuration/hooks/use-advanced-prompt-config.ts`
+- `web/app/components/app/configuration/debug/hooks.tsx`
+- `web/app/components/workflow/hooks/use-workflow.ts`
+
+### Pattern 2: Extract Sub-Components
+
+**When**: Single component has multiple UI sections, conditional rendering blocks, or repeated patterns.
+
+**Dify Convention**: Place sub-components in subdirectories or as separate files in the same directory.
+
+```typescript
+// ❌ Before: Monolithic JSX with multiple sections
+const AppInfo = () => {
+  return (
+    <div>
+      {/* 100 lines of header UI */}
+      {/* 100 lines of operations UI */}
+      {/* 100 lines of modals */}
+    </div>
+  )
+}
+
+// ✅ After: Split into focused components
+// app-info/
+//   ├── index.tsx           (orchestration only)
+//   ├── app-header.tsx      (header UI)
+//   ├── app-operations.tsx  (operations UI)
+//   └── app-modals.tsx      (modal management)
+
+const AppInfo = () => {
+  const { showModal, setShowModal } = useAppInfoModals()
+  
+  return (
+    <div>
+      <AppHeader appDetail={appDetail} />
+      <AppOperations onAction={handleAction} />
+      <AppModals show={showModal} onClose={() => setShowModal(null)} />
+    </div>
+  )
+}
+```
+
+**Dify Examples**:
+- `web/app/components/app/configuration/` directory structure
+- `web/app/components/workflow/nodes/` per-node organization
+
+### Pattern 3: Simplify Conditional Logic
+
+**When**: Deep nesting (> 3 levels), complex ternaries, or multiple `if/else` chains.
+
+```typescript
+// ❌ Before: Deeply nested conditionals
+const Template = useMemo(() => {
+  if (appDetail?.mode === AppModeEnum.CHAT) {
+    switch (locale) {
+      case LanguagesSupported[1]:
+        return <TemplateChatZh />
+      case LanguagesSupported[7]:
+        return <TemplateChatJa />
+      default:
+        return <TemplateChatEn />
+    }
+  }
+  if (appDetail?.mode === AppModeEnum.ADVANCED_CHAT) {
+    // Another 15 lines...
+  }
+  // More conditions...
+}, [appDetail, locale])
+
+// ✅ After: Use lookup tables + early returns
+const TEMPLATE_MAP = {
+  [AppModeEnum.CHAT]: {
+    [LanguagesSupported[1]]: TemplateChatZh,
+    [LanguagesSupported[7]]: TemplateChatJa,
+    default: TemplateChatEn,
+  },
+  [AppModeEnum.ADVANCED_CHAT]: {
+    [LanguagesSupported[1]]: TemplateAdvancedChatZh,
+    // ...
+  },
+}
+
+const Template = useMemo(() => {
+  const modeTemplates = TEMPLATE_MAP[appDetail?.mode]
+  if (!modeTemplates) return null
+  
+  const TemplateComponent = modeTemplates[locale] || modeTemplates.default
+  return <TemplateComponent appDetail={appDetail} />
+}, [appDetail, locale])
+```
+
+### Pattern 4: Extract API/Data Logic
+
+**When**: Component directly handles API calls, data transformation, or complex async operations.
+
+**Dify Convention**: Use `@tanstack/react-query` hooks from `web/service/use-*.ts` or create custom data hooks.
+
+```typescript
+// ❌ Before: API logic in component
+const MCPServiceCard = () => {
+  const [basicAppConfig, setBasicAppConfig] = useState({})
+  
+  useEffect(() => {
+    if (isBasicApp && appId) {
+      (async () => {
+        const res = await fetchAppDetail({ url: '/apps', id: appId })
+        setBasicAppConfig(res?.model_config || {})
+      })()
+    }
+  }, [appId, isBasicApp])
+  
+  // More API-related logic...
+}
+
+// ✅ After: Extract to data hook using React Query
+// use-app-config.ts
+import { useQuery } from '@tanstack/react-query'
+import { get } from '@/service/base'
+
+const NAME_SPACE = 'appConfig'
+
+export const useAppConfig = (appId: string, isBasicApp: boolean) => {
+  return useQuery({
+    enabled: isBasicApp && !!appId,
+    queryKey: [NAME_SPACE, 'detail', appId],
+    queryFn: () => get<AppDetailResponse>(`/apps/${appId}`),
+    select: data => data?.model_config || {},
+  })
+}
+
+// Component becomes cleaner
+const MCPServiceCard = () => {
+  const { data: config, isLoading } = useAppConfig(appId, isBasicApp)
+  // UI only
+}
+```
+
+**React Query Best Practices in Dify**:
+- Define `NAME_SPACE` for query key organization
+- Use `enabled` option for conditional fetching
+- Use `select` for data transformation
+- Export invalidation hooks: `useInvalidXxx`
+
+**Dify Examples**:
+- `web/service/use-workflow.ts`
+- `web/service/use-common.ts`
+- `web/service/knowledge/use-dataset.ts`
+- `web/service/knowledge/use-document.ts`
+
+### Pattern 5: Extract Modal/Dialog Management
+
+**When**: Component manages multiple modals with complex open/close states.
+
+**Dify Convention**: Modals should be extracted with their state management.
+
+```typescript
+// ❌ Before: Multiple modal states in component
+const AppInfo = () => {
+  const [showEditModal, setShowEditModal] = useState(false)
+  const [showDuplicateModal, setShowDuplicateModal] = useState(false)
+  const [showConfirmDelete, setShowConfirmDelete] = useState(false)
+  const [showSwitchModal, setShowSwitchModal] = useState(false)
+  const [showImportDSLModal, setShowImportDSLModal] = useState(false)
+  // 5+ more modal states...
+}
+
+// ✅ After: Extract to modal management hook
+type ModalType = 'edit' | 'duplicate' | 'delete' | 'switch' | 'import' | null
+
+const useAppInfoModals = () => {
+  const [activeModal, setActiveModal] = useState<ModalType>(null)
+  
+  const openModal = useCallback((type: ModalType) => setActiveModal(type), [])
+  const closeModal = useCallback(() => setActiveModal(null), [])
+  
+  return {
+    activeModal,
+    openModal,
+    closeModal,
+    isOpen: (type: ModalType) => activeModal === type,
+  }
+}
+```
+
+### Pattern 6: Extract Form Logic
+
+**When**: Complex form validation, submission handling, or field transformation.
+
+**Dify Convention**: Use `@tanstack/react-form` patterns from `web/app/components/base/form/`.
+
+```typescript
+// ✅ Use existing form infrastructure
+import { useAppForm } from '@/app/components/base/form'
+
+const ConfigForm = () => {
+  const form = useAppForm({
+    defaultValues: { name: '', description: '' },
+    onSubmit: handleSubmit,
+  })
+  
+  return <form.Provider>...</form.Provider>
+}
+```
+
+## Dify-Specific Refactoring Guidelines
+
+### 1. Context Provider Extraction
+
+**When**: Component provides complex context values with multiple states.
+
+```typescript
+// ❌ Before: Large context value object
+const value = {
+  appId, isAPIKeySet, isTrailFinished, mode, modelModeType,
+  promptMode, isAdvancedMode, isAgent, isOpenAI, isFunctionCall,
+  // 50+ more properties...
+}
+return <ConfigContext.Provider value={value}>...</ConfigContext.Provider>
+
+// ✅ After: Split into domain-specific contexts
+<ModelConfigProvider value={modelConfigValue}>
+  <DatasetConfigProvider value={datasetConfigValue}>
+    <UIConfigProvider value={uiConfigValue}>
+      {children}
+    </UIConfigProvider>
+  </DatasetConfigProvider>
+</ModelConfigProvider>
+```
+
+**Dify Reference**: `web/context/` directory structure
+
+### 2. Workflow Node Components
+
+**When**: Refactoring workflow node components (`web/app/components/workflow/nodes/`).
+
+**Conventions**:
+- Keep node logic in `use-interactions.ts`
+- Extract panel UI to separate files
+- Use `_base` components for common patterns
+
+```
+nodes/<node-type>/
+  ├── index.tsx              # Node registration
+  ├── node.tsx               # Node visual component
+  ├── panel.tsx              # Configuration panel
+  ├── use-interactions.ts    # Node-specific hooks
+  └── types.ts               # Type definitions
+```
+
+### 3. Configuration Components
+
+**When**: Refactoring app configuration components.
+
+**Conventions**:
+- Separate config sections into subdirectories
+- Use existing patterns from `web/app/components/app/configuration/`
+- Keep feature toggles in dedicated components
+
+### 4. Tool/Plugin Components
+
+**When**: Refactoring tool-related components (`web/app/components/tools/`).
+
+**Conventions**:
+- Follow existing modal patterns
+- Use service hooks from `web/service/use-tools.ts`
+- Keep provider-specific logic isolated
+
+## Refactoring Workflow
+
+### Step 1: Generate Refactoring Prompt
+
+```bash
+pnpm refactor-component <path>
+```
+
+This command will:
+- Analyze component complexity and features
+- Identify specific refactoring actions needed
+- Generate a prompt for AI assistant (auto-copied to clipboard on macOS)
+- Provide detailed requirements based on detected patterns
+
+### Step 2: Analyze Details
+
+```bash
+pnpm analyze-component <path> --json
+```
+
+Identify:
+- Total complexity score
+- Max function complexity
+- Line count
+- Features detected (state, effects, API, etc.)
+
+### Step 3: Plan
+
+Create a refactoring plan based on detected features:
+
+| Detected Feature | Refactoring Action |
+|------------------|-------------------|
+| `hasState: true` + `hasEffects: true` | Extract custom hook |
+| `hasAPI: true` | Extract data/service hook |
+| `hasEvents: true` (many) | Extract event handlers |
+| `lineCount > 300` | Split into sub-components |
+| `maxComplexity > 50` | Simplify conditional logic |
+
+### Step 4: Execute Incrementally
+
+1. **Extract one piece at a time**
+2. **Run lint, type-check, and tests after each extraction**
+3. **Verify functionality before next step**
+
+```
+For each extraction:
+  ┌────────────────────────────────────────┐
+  │ 1. Extract code                        │
+  │ 2. Run: pnpm lint:fix                  │
+  │ 3. Run: pnpm type-check:tsgo           │
+  │ 4. Run: pnpm test                      │
+  │ 5. Test functionality manually         │
+  │ 6. PASS? → Next extraction             │
+  │    FAIL? → Fix before continuing       │
+  └────────────────────────────────────────┘
+```
+
+### Step 5: Verify
+
+After refactoring:
+
+```bash
+# Re-run refactor command to verify improvements
+pnpm refactor-component <path>
+
+# If complexity < 25 and lines < 200, you'll see:
+# ✅ COMPONENT IS WELL-STRUCTURED
+
+# For detailed metrics:
+pnpm analyze-component <path> --json
+
+# Target metrics:
+# - complexity < 50
+# - lineCount < 300
+# - maxComplexity < 30
+```
+
+## Common Mistakes to Avoid
+
+### ❌ Over-Engineering
+
+```typescript
+// ❌ Too many tiny hooks
+const useButtonText = () => useState('Click')
+const useButtonDisabled = () => useState(false)
+const useButtonLoading = () => useState(false)
+
+// ✅ Cohesive hook with related state
+const useButtonState = () => {
+  const [text, setText] = useState('Click')
+  const [disabled, setDisabled] = useState(false)
+  const [loading, setLoading] = useState(false)
+  return { text, setText, disabled, setDisabled, loading, setLoading }
+}
+```
+
+### ❌ Breaking Existing Patterns
+
+- Follow existing directory structures
+- Maintain naming conventions
+- Preserve export patterns for compatibility
+
+### ❌ Premature Abstraction
+
+- Only extract when there's clear complexity benefit
+- Don't create abstractions for single-use code
+- Keep refactored code in the same domain area
+
+## References
+
+### Dify Codebase Examples
+
+- **Hook extraction**: `web/app/components/app/configuration/hooks/`
+- **Component splitting**: `web/app/components/app/configuration/`
+- **Service hooks**: `web/service/use-*.ts`
+- **Workflow patterns**: `web/app/components/workflow/hooks/`
+- **Form patterns**: `web/app/components/base/form/`
+
+### Related Skills
+
+- `frontend-testing` - For testing refactored components
+- `web/testing/testing.md` - Testing specification

.claude/skills/component-refactoring/references/complexity-patterns.md

@@ -0,0 +1,493 @@
+# Complexity Reduction Patterns
+
+This document provides patterns for reducing cognitive complexity in Dify React components.
+
+## Understanding Complexity
+
+### SonarJS Cognitive Complexity
+
+The `pnpm analyze-component` tool uses SonarJS cognitive complexity metrics:
+
+- **Total Complexity**: Sum of all functions' complexity in the file
+- **Max Complexity**: Highest single function complexity
+
+### What Increases Complexity
+
+| Pattern | Complexity Impact |
+|---------|-------------------|
+| `if/else` | +1 per branch |
+| Nested conditions | +1 per nesting level |
+| `switch/case` | +1 per case |
+| `for/while/do` | +1 per loop |
+| `&&`/`||` chains | +1 per operator |
+| Nested callbacks | +1 per nesting level |
+| `try/catch` | +1 per catch |
+| Ternary expressions | +1 per nesting |
+
+## Pattern 1: Replace Conditionals with Lookup Tables
+
+**Before** (complexity: ~15):
+
+```typescript
+const Template = useMemo(() => {
+  if (appDetail?.mode === AppModeEnum.CHAT) {
+    switch (locale) {
+      case LanguagesSupported[1]:
+        return <TemplateChatZh appDetail={appDetail} />
+      case LanguagesSupported[7]:
+        return <TemplateChatJa appDetail={appDetail} />
+      default:
+        return <TemplateChatEn appDetail={appDetail} />
+    }
+  }
+  if (appDetail?.mode === AppModeEnum.ADVANCED_CHAT) {
+    switch (locale) {
+      case LanguagesSupported[1]:
+        return <TemplateAdvancedChatZh appDetail={appDetail} />
+      case LanguagesSupported[7]:
+        return <TemplateAdvancedChatJa appDetail={appDetail} />
+      default:
+        return <TemplateAdvancedChatEn appDetail={appDetail} />
+    }
+  }
+  if (appDetail?.mode === AppModeEnum.WORKFLOW) {
+    // Similar pattern...
+  }
+  return null
+}, [appDetail, locale])
+```
+
+**After** (complexity: ~3):
+
+```typescript
+// Define lookup table outside component
+const TEMPLATE_MAP: Record<AppModeEnum, Record<string, FC<TemplateProps>>> = {
+  [AppModeEnum.CHAT]: {
+    [LanguagesSupported[1]]: TemplateChatZh,
+    [LanguagesSupported[7]]: TemplateChatJa,
+    default: TemplateChatEn,
+  },
+  [AppModeEnum.ADVANCED_CHAT]: {
+    [LanguagesSupported[1]]: TemplateAdvancedChatZh,
+    [LanguagesSupported[7]]: TemplateAdvancedChatJa,
+    default: TemplateAdvancedChatEn,
+  },
+  [AppModeEnum.WORKFLOW]: {
+    [LanguagesSupported[1]]: TemplateWorkflowZh,
+    [LanguagesSupported[7]]: TemplateWorkflowJa,
+    default: TemplateWorkflowEn,
+  },
+  // ...
+}
+
+// Clean component logic
+const Template = useMemo(() => {
+  if (!appDetail?.mode) return null
+  
+  const templates = TEMPLATE_MAP[appDetail.mode]
+  if (!templates) return null
+  
+  const TemplateComponent = templates[locale] ?? templates.default
+  return <TemplateComponent appDetail={appDetail} />
+}, [appDetail, locale])
+```
+
+## Pattern 2: Use Early Returns
+
+**Before** (complexity: ~10):
+
+```typescript
+const handleSubmit = () => {
+  if (isValid) {
+    if (hasChanges) {
+      if (isConnected) {
+        submitData()
+      } else {
+        showConnectionError()
+      }
+    } else {
+      showNoChangesMessage()
+    }
+  } else {
+    showValidationError()
+  }
+}
+```
+
+**After** (complexity: ~4):
+
+```typescript
+const handleSubmit = () => {
+  if (!isValid) {
+    showValidationError()
+    return
+  }
+  
+  if (!hasChanges) {
+    showNoChangesMessage()
+    return
+  }
+  
+  if (!isConnected) {
+    showConnectionError()
+    return
+  }
+  
+  submitData()
+}
+```
+
+## Pattern 3: Extract Complex Conditions
+
+**Before** (complexity: high):
+
+```typescript
+const canPublish = (() => {
+  if (mode !== AppModeEnum.COMPLETION) {
+    if (!isAdvancedMode)
+      return true
+
+    if (modelModeType === ModelModeType.completion) {
+      if (!hasSetBlockStatus.history || !hasSetBlockStatus.query)
+        return false
+      return true
+    }
+    return true
+  }
+  return !promptEmpty
+})()
+```
+
+**After** (complexity: lower):
+
+```typescript
+// Extract to named functions
+const canPublishInCompletionMode = () => !promptEmpty
+
+const canPublishInChatMode = () => {
+  if (!isAdvancedMode) return true
+  if (modelModeType !== ModelModeType.completion) return true
+  return hasSetBlockStatus.history && hasSetBlockStatus.query
+}
+
+// Clean main logic
+const canPublish = mode === AppModeEnum.COMPLETION
+  ? canPublishInCompletionMode()
+  : canPublishInChatMode()
+```
+
+## Pattern 4: Replace Chained Ternaries
+
+**Before** (complexity: ~5):
+
+```typescript
+const statusText = serverActivated
+  ? t('status.running')
+  : serverPublished
+    ? t('status.inactive')
+    : appUnpublished
+      ? t('status.unpublished')
+      : t('status.notConfigured')
+```
+
+**After** (complexity: ~2):
+
+```typescript
+const getStatusText = () => {
+  if (serverActivated) return t('status.running')
+  if (serverPublished) return t('status.inactive')
+  if (appUnpublished) return t('status.unpublished')
+  return t('status.notConfigured')
+}
+
+const statusText = getStatusText()
+```
+
+Or use lookup:
+
+```typescript
+const STATUS_TEXT_MAP = {
+  running: 'status.running',
+  inactive: 'status.inactive',
+  unpublished: 'status.unpublished',
+  notConfigured: 'status.notConfigured',
+} as const
+
+const getStatusKey = (): keyof typeof STATUS_TEXT_MAP => {
+  if (serverActivated) return 'running'
+  if (serverPublished) return 'inactive'
+  if (appUnpublished) return 'unpublished'
+  return 'notConfigured'
+}
+
+const statusText = t(STATUS_TEXT_MAP[getStatusKey()])
+```
+
+## Pattern 5: Flatten Nested Loops
+
+**Before** (complexity: high):
+
+```typescript
+const processData = (items: Item[]) => {
+  const results: ProcessedItem[] = []
+  
+  for (const item of items) {
+    if (item.isValid) {
+      for (const child of item.children) {
+        if (child.isActive) {
+          for (const prop of child.properties) {
+            if (prop.value !== null) {
+              results.push({
+                itemId: item.id,
+                childId: child.id,
+                propValue: prop.value,
+              })
+            }
+          }
+        }
+      }
+    }
+  }
+  
+  return results
+}
+```
+
+**After** (complexity: lower):
+
+```typescript
+// Use functional approach
+const processData = (items: Item[]) => {
+  return items
+    .filter(item => item.isValid)
+    .flatMap(item =>
+      item.children
+        .filter(child => child.isActive)
+        .flatMap(child =>
+          child.properties
+            .filter(prop => prop.value !== null)
+            .map(prop => ({
+              itemId: item.id,
+              childId: child.id,
+              propValue: prop.value,
+            }))
+        )
+    )
+}
+```
+
+## Pattern 6: Extract Event Handler Logic
+
+**Before** (complexity: high in component):
+
+```typescript
+const Component = () => {
+  const handleSelect = (data: DataSet[]) => {
+    if (isEqual(data.map(item => item.id), dataSets.map(item => item.id))) {
+      hideSelectDataSet()
+      return
+    }
+
+    formattingChangedDispatcher()
+    let newDatasets = data
+    if (data.find(item => !item.name)) {
+      const newSelected = produce(data, (draft) => {
+        data.forEach((item, index) => {
+          if (!item.name) {
+            const newItem = dataSets.find(i => i.id === item.id)
+            if (newItem)
+              draft[index] = newItem
+          }
+        })
+      })
+      setDataSets(newSelected)
+      newDatasets = newSelected
+    }
+    else {
+      setDataSets(data)
+    }
+    hideSelectDataSet()
+    
+    // 40 more lines of logic...
+  }
+  
+  return <div>...</div>
+}
+```
+
+**After** (complexity: lower):
+
+```typescript
+// Extract to hook or utility
+const useDatasetSelection = (dataSets: DataSet[], setDataSets: SetState<DataSet[]>) => {
+  const normalizeSelection = (data: DataSet[]) => {
+    const hasUnloadedItem = data.some(item => !item.name)
+    if (!hasUnloadedItem) return data
+    
+    return produce(data, (draft) => {
+      data.forEach((item, index) => {
+        if (!item.name) {
+          const existing = dataSets.find(i => i.id === item.id)
+          if (existing) draft[index] = existing
+        }
+      })
+    })
+  }
+  
+  const hasSelectionChanged = (newData: DataSet[]) => {
+    return !isEqual(
+      newData.map(item => item.id),
+      dataSets.map(item => item.id)
+    )
+  }
+  
+  return { normalizeSelection, hasSelectionChanged }
+}
+
+// Component becomes cleaner
+const Component = () => {
+  const { normalizeSelection, hasSelectionChanged } = useDatasetSelection(dataSets, setDataSets)
+  
+  const handleSelect = (data: DataSet[]) => {
+    if (!hasSelectionChanged(data)) {
+      hideSelectDataSet()
+      return
+    }
+    
+    formattingChangedDispatcher()
+    const normalized = normalizeSelection(data)
+    setDataSets(normalized)
+    hideSelectDataSet()
+  }
+  
+  return <div>...</div>
+}
+```
+
+## Pattern 7: Reduce Boolean Logic Complexity
+
+**Before** (complexity: ~8):
+
+```typescript
+const toggleDisabled = hasInsufficientPermissions
+  || appUnpublished
+  || missingStartNode
+  || triggerModeDisabled
+  || (isAdvancedApp && !currentWorkflow?.graph)
+  || (isBasicApp && !basicAppConfig.updated_at)
+```
+
+**After** (complexity: ~3):
+
+```typescript
+// Extract meaningful boolean functions
+const isAppReady = () => {
+  if (isAdvancedApp) return !!currentWorkflow?.graph
+  return !!basicAppConfig.updated_at
+}
+
+const hasRequiredPermissions = () => {
+  return isCurrentWorkspaceEditor && !hasInsufficientPermissions
+}
+
+const canToggle = () => {
+  if (!hasRequiredPermissions()) return false
+  if (!isAppReady()) return false
+  if (missingStartNode) return false
+  if (triggerModeDisabled) return false
+  return true
+}
+
+const toggleDisabled = !canToggle()
+```
+
+## Pattern 8: Simplify useMemo/useCallback Dependencies
+
+**Before** (complexity: multiple recalculations):
+
+```typescript
+const payload = useMemo(() => {
+  let parameters: Parameter[] = []
+  let outputParameters: OutputParameter[] = []
+
+  if (!published) {
+    parameters = (inputs || []).map((item) => ({
+      name: item.variable,
+      description: '',
+      form: 'llm',
+      required: item.required,
+      type: item.type,
+    }))
+    outputParameters = (outputs || []).map((item) => ({
+      name: item.variable,
+      description: '',
+      type: item.value_type,
+    }))
+  }
+  else if (detail && detail.tool) {
+    parameters = (inputs || []).map((item) => ({
+      // Complex transformation...
+    }))
+    outputParameters = (outputs || []).map((item) => ({
+      // Complex transformation...
+    }))
+  }
+  
+  return {
+    icon: detail?.icon || icon,
+    label: detail?.label || name,
+    // ...more fields
+  }
+}, [detail, published, workflowAppId, icon, name, description, inputs, outputs])
+```
+
+**After** (complexity: separated concerns):
+
+```typescript
+// Separate transformations
+const useParameterTransform = (inputs: InputVar[], detail?: ToolDetail, published?: boolean) => {
+  return useMemo(() => {
+    if (!published) {
+      return inputs.map(item => ({
+        name: item.variable,
+        description: '',
+        form: 'llm',
+        required: item.required,
+        type: item.type,
+      }))
+    }
+    
+    if (!detail?.tool) return []
+    
+    return inputs.map(item => ({
+      name: item.variable,
+      required: item.required,
+      type: item.type === 'paragraph' ? 'string' : item.type,
+      description: detail.tool.parameters.find(p => p.name === item.variable)?.llm_description || '',
+      form: detail.tool.parameters.find(p => p.name === item.variable)?.form || 'llm',
+    }))
+  }, [inputs, detail, published])
+}
+
+// Component uses hook
+const parameters = useParameterTransform(inputs, detail, published)
+const outputParameters = useOutputTransform(outputs, detail, published)
+
+const payload = useMemo(() => ({
+  icon: detail?.icon || icon,
+  label: detail?.label || name,
+  parameters,
+  outputParameters,
+  // ...
+}), [detail, icon, name, parameters, outputParameters])
+```
+
+## Target Metrics After Refactoring
+
+| Metric | Target |
+|--------|--------|
+| Total Complexity | < 50 |
+| Max Function Complexity | < 30 |
+| Function Length | < 30 lines |
+| Nesting Depth | ≤ 3 levels |
+| Conditional Chains | ≤ 3 conditions |

.claude/skills/component-refactoring/references/component-splitting.md

@@ -0,0 +1,477 @@
+# Component Splitting Patterns
+
+This document provides detailed guidance on splitting large components into smaller, focused components in Dify.
+
+## When to Split Components
+
+Split a component when you identify:
+
+1. **Multiple UI sections** - Distinct visual areas with minimal coupling that can be composed independently
+1. **Conditional rendering blocks** - Large `{condition && <JSX />}` blocks
+1. **Repeated patterns** - Similar UI structures used multiple times
+1. **300+ lines** - Component exceeds manageable size
+1. **Modal clusters** - Multiple modals rendered in one component
+
+## Splitting Strategies
+
+### Strategy 1: Section-Based Splitting
+
+Identify visual sections and extract each as a component.
+
+```typescript
+// ❌ Before: Monolithic component (500+ lines)
+const ConfigurationPage = () => {
+  return (
+    <div>
+      {/* Header Section - 50 lines */}
+      <div className="header">
+        <h1>{t('configuration.title')}</h1>
+        <div className="actions">
+          {isAdvancedMode && <Badge>Advanced</Badge>}
+          <ModelParameterModal ... />
+          <AppPublisher ... />
+        </div>
+      </div>
+      
+      {/* Config Section - 200 lines */}
+      <div className="config">
+        <Config />
+      </div>
+      
+      {/* Debug Section - 150 lines */}
+      <div className="debug">
+        <Debug ... />
+      </div>
+      
+      {/* Modals Section - 100 lines */}
+      {showSelectDataSet && <SelectDataSet ... />}
+      {showHistoryModal && <EditHistoryModal ... />}
+      {showUseGPT4Confirm && <Confirm ... />}
+    </div>
+  )
+}
+
+// ✅ After: Split into focused components
+// configuration/
+//   ├── index.tsx              (orchestration)
+//   ├── configuration-header.tsx
+//   ├── configuration-content.tsx
+//   ├── configuration-debug.tsx
+//   └── configuration-modals.tsx
+
+// configuration-header.tsx
+interface ConfigurationHeaderProps {
+  isAdvancedMode: boolean
+  onPublish: () => void
+}
+
+const ConfigurationHeader: FC<ConfigurationHeaderProps> = ({
+  isAdvancedMode,
+  onPublish,
+}) => {
+  const { t } = useTranslation()
+  
+  return (
+    <div className="header">
+      <h1>{t('configuration.title')}</h1>
+      <div className="actions">
+        {isAdvancedMode && <Badge>Advanced</Badge>}
+        <ModelParameterModal ... />
+        <AppPublisher onPublish={onPublish} />
+      </div>
+    </div>
+  )
+}
+
+// index.tsx (orchestration only)
+const ConfigurationPage = () => {
+  const { modelConfig, setModelConfig } = useModelConfig()
+  const { activeModal, openModal, closeModal } = useModalState()
+  
+  return (
+    <div>
+      <ConfigurationHeader
+        isAdvancedMode={isAdvancedMode}
+        onPublish={handlePublish}
+      />
+      <ConfigurationContent
+        modelConfig={modelConfig}
+        onConfigChange={setModelConfig}
+      />
+      {!isMobile && (
+        <ConfigurationDebug
+          inputs={inputs}
+          onSetting={handleSetting}
+        />
+      )}
+      <ConfigurationModals
+        activeModal={activeModal}
+        onClose={closeModal}
+      />
+    </div>
+  )
+}
+```
+
+### Strategy 2: Conditional Block Extraction
+
+Extract large conditional rendering blocks.
+
+```typescript
+// ❌ Before: Large conditional blocks
+const AppInfo = () => {
+  return (
+    <div>
+      {expand ? (
+        <div className="expanded">
+          {/* 100 lines of expanded view */}
+        </div>
+      ) : (
+        <div className="collapsed">
+          {/* 50 lines of collapsed view */}
+        </div>
+      )}
+    </div>
+  )
+}
+
+// ✅ After: Separate view components
+const AppInfoExpanded: FC<AppInfoViewProps> = ({ appDetail, onAction }) => {
+  return (
+    <div className="expanded">
+      {/* Clean, focused expanded view */}
+    </div>
+  )
+}
+
+const AppInfoCollapsed: FC<AppInfoViewProps> = ({ appDetail, onAction }) => {
+  return (
+    <div className="collapsed">
+      {/* Clean, focused collapsed view */}
+    </div>
+  )
+}
+
+const AppInfo = () => {
+  return (
+    <div>
+      {expand
+        ? <AppInfoExpanded appDetail={appDetail} onAction={handleAction} />
+        : <AppInfoCollapsed appDetail={appDetail} onAction={handleAction} />
+      }
+    </div>
+  )
+}
+```
+
+### Strategy 3: Modal Extraction
+
+Extract modals with their trigger logic.
+
+```typescript
+// ❌ Before: Multiple modals in one component
+const AppInfo = () => {
+  const [showEdit, setShowEdit] = useState(false)
+  const [showDuplicate, setShowDuplicate] = useState(false)
+  const [showDelete, setShowDelete] = useState(false)
+  const [showSwitch, setShowSwitch] = useState(false)
+  
+  const onEdit = async (data) => { /* 20 lines */ }
+  const onDuplicate = async (data) => { /* 20 lines */ }
+  const onDelete = async () => { /* 15 lines */ }
+  
+  return (
+    <div>
+      {/* Main content */}
+      
+      {showEdit && <EditModal onConfirm={onEdit} onClose={() => setShowEdit(false)} />}
+      {showDuplicate && <DuplicateModal onConfirm={onDuplicate} onClose={() => setShowDuplicate(false)} />}
+      {showDelete && <DeleteConfirm onConfirm={onDelete} onClose={() => setShowDelete(false)} />}
+      {showSwitch && <SwitchModal ... />}
+    </div>
+  )
+}
+
+// ✅ After: Modal manager component
+// app-info-modals.tsx
+type ModalType = 'edit' | 'duplicate' | 'delete' | 'switch' | null
+
+interface AppInfoModalsProps {
+  appDetail: AppDetail
+  activeModal: ModalType
+  onClose: () => void
+  onSuccess: () => void
+}
+
+const AppInfoModals: FC<AppInfoModalsProps> = ({
+  appDetail,
+  activeModal,
+  onClose,
+  onSuccess,
+}) => {
+  const handleEdit = async (data) => { /* logic */ }
+  const handleDuplicate = async (data) => { /* logic */ }
+  const handleDelete = async () => { /* logic */ }
+
+  return (
+    <>
+      {activeModal === 'edit' && (
+        <EditModal
+          appDetail={appDetail}
+          onConfirm={handleEdit}
+          onClose={onClose}
+        />
+      )}
+      {activeModal === 'duplicate' && (
+        <DuplicateModal
+          appDetail={appDetail}
+          onConfirm={handleDuplicate}
+          onClose={onClose}
+        />
+      )}
+      {activeModal === 'delete' && (
+        <DeleteConfirm
+          onConfirm={handleDelete}
+          onClose={onClose}
+        />
+      )}
+      {activeModal === 'switch' && (
+        <SwitchModal
+          appDetail={appDetail}
+          onClose={onClose}
+        />
+      )}
+    </>
+  )
+}
+
+// Parent component
+const AppInfo = () => {
+  const { activeModal, openModal, closeModal } = useModalState()
+  
+  return (
+    <div>
+      {/* Main content with openModal triggers */}
+      <Button onClick={() => openModal('edit')}>Edit</Button>
+      
+      <AppInfoModals
+        appDetail={appDetail}
+        activeModal={activeModal}
+        onClose={closeModal}
+        onSuccess={handleSuccess}
+      />
+    </div>
+  )
+}
+```
+
+### Strategy 4: List Item Extraction
+
+Extract repeated item rendering.
+
+```typescript
+// ❌ Before: Inline item rendering
+const OperationsList = () => {
+  return (
+    <div>
+      {operations.map(op => (
+        <div key={op.id} className="operation-item">
+          <span className="icon">{op.icon}</span>
+          <span className="title">{op.title}</span>
+          <span className="description">{op.description}</span>
+          <button onClick={() => op.onClick()}>
+            {op.actionLabel}
+          </button>
+          {op.badge && <Badge>{op.badge}</Badge>}
+          {/* More complex rendering... */}
+        </div>
+      ))}
+    </div>
+  )
+}
+
+// ✅ After: Extracted item component
+interface OperationItemProps {
+  operation: Operation
+  onAction: (id: string) => void
+}
+
+const OperationItem: FC<OperationItemProps> = ({ operation, onAction }) => {
+  return (
+    <div className="operation-item">
+      <span className="icon">{operation.icon}</span>
+      <span className="title">{operation.title}</span>
+      <span className="description">{operation.description}</span>
+      <button onClick={() => onAction(operation.id)}>
+        {operation.actionLabel}
+      </button>
+      {operation.badge && <Badge>{operation.badge}</Badge>}
+    </div>
+  )
+}
+
+const OperationsList = () => {
+  const handleAction = useCallback((id: string) => {
+    const op = operations.find(o => o.id === id)
+    op?.onClick()
+  }, [operations])
+
+  return (
+    <div>
+      {operations.map(op => (
+        <OperationItem
+          key={op.id}
+          operation={op}
+          onAction={handleAction}
+        />
+      ))}
+    </div>
+  )
+}
+```
+
+## Directory Structure Patterns
+
+### Pattern A: Flat Structure (Simple Components)
+
+For components with 2-3 sub-components:
+
+```
+component-name/
+  ├── index.tsx           # Main component
+  ├── sub-component-a.tsx
+  ├── sub-component-b.tsx
+  └── types.ts            # Shared types
+```
+
+### Pattern B: Nested Structure (Complex Components)
+
+For components with many sub-components:
+
+```
+component-name/
+  ├── index.tsx           # Main orchestration
+  ├── types.ts            # Shared types
+  ├── hooks/
+  │   ├── use-feature-a.ts
+  │   └── use-feature-b.ts
+  ├── components/
+  │   ├── header/
+  │   │   └── index.tsx
+  │   ├── content/
+  │   │   └── index.tsx
+  │   └── modals/
+  │       └── index.tsx
+  └── utils/
+      └── helpers.ts
+```
+
+### Pattern C: Feature-Based Structure (Dify Standard)
+
+Following Dify's existing patterns:
+
+```
+configuration/
+  ├── index.tsx           # Main page component
+  ├── base/               # Base/shared components
+  │   ├── feature-panel/
+  │   ├── group-name/
+  │   └── operation-btn/
+  ├── config/             # Config section
+  │   ├── index.tsx
+  │   ├── agent/
+  │   └── automatic/
+  ├── dataset-config/     # Dataset section
+  │   ├── index.tsx
+  │   ├── card-item/
+  │   └── params-config/
+  ├── debug/              # Debug section
+  │   ├── index.tsx
+  │   └── hooks.tsx
+  └── hooks/              # Shared hooks
+      └── use-advanced-prompt-config.ts
+```
+
+## Props Design
+
+### Minimal Props Principle
+
+Pass only what's needed:
+
+```typescript
+// ❌ Bad: Passing entire objects when only some fields needed
+<ConfigHeader appDetail={appDetail} modelConfig={modelConfig} />
+
+// ✅ Good: Destructure to minimum required
+<ConfigHeader
+  appName={appDetail.name}
+  isAdvancedMode={modelConfig.isAdvanced}
+  onPublish={handlePublish}
+/>
+```
+
+### Callback Props Pattern
+
+Use callbacks for child-to-parent communication:
+
+```typescript
+// Parent
+const Parent = () => {
+  const [value, setValue] = useState('')
+  
+  return (
+    <Child
+      value={value}
+      onChange={setValue}
+      onSubmit={handleSubmit}
+    />
+  )
+}
+
+// Child
+interface ChildProps {
+  value: string
+  onChange: (value: string) => void
+  onSubmit: () => void
+}
+
+const Child: FC<ChildProps> = ({ value, onChange, onSubmit }) => {
+  return (
+    <div>
+      <input value={value} onChange={e => onChange(e.target.value)} />
+      <button onClick={onSubmit}>Submit</button>
+    </div>
+  )
+}
+```
+
+### Render Props for Flexibility
+
+When sub-components need parent context:
+
+```typescript
+interface ListProps<T> {
+  items: T[]
+  renderItem: (item: T, index: number) => React.ReactNode
+  renderEmpty?: () => React.ReactNode
+}
+
+function List<T>({ items, renderItem, renderEmpty }: ListProps<T>) {
+  if (items.length === 0 && renderEmpty) {
+    return <>{renderEmpty()}</>
+  }
+  
+  return (
+    <div>
+      {items.map((item, index) => renderItem(item, index))}
+    </div>
+  )
+}
+
+// Usage
+<List
+  items={operations}
+  renderItem={(op, i) => <OperationItem key={i} operation={op} />}
+  renderEmpty={() => <EmptyState message="No operations" />}
+/>
+```

.claude/skills/component-refactoring/references/hook-extraction.md

@@ -0,0 +1,317 @@
+# Hook Extraction Patterns
+
+This document provides detailed guidance on extracting custom hooks from complex components in Dify.
+
+## When to Extract Hooks
+
+Extract a custom hook when you identify:
+
+1. **Coupled state groups** - Multiple `useState` hooks that are always used together
+1. **Complex effects** - `useEffect` with multiple dependencies or cleanup logic
+1. **Business logic** - Data transformations, validations, or calculations
+1. **Reusable patterns** - Logic that appears in multiple components
+
+## Extraction Process
+
+### Step 1: Identify State Groups
+
+Look for state variables that are logically related:
+
+```typescript
+// ❌ These belong together - extract to hook
+const [modelConfig, setModelConfig] = useState<ModelConfig>(...)
+const [completionParams, setCompletionParams] = useState<FormValue>({})
+const [modelModeType, setModelModeType] = useState<ModelModeType>(...)
+
+// These are model-related state that should be in useModelConfig()
+```
+
+### Step 2: Identify Related Effects
+
+Find effects that modify the grouped state:
+
+```typescript
+// ❌ These effects belong with the state above
+useEffect(() => {
+  if (hasFetchedDetail && !modelModeType) {
+    const mode = currModel?.model_properties.mode
+    if (mode) {
+      const newModelConfig = produce(modelConfig, (draft) => {
+        draft.mode = mode
+      })
+      setModelConfig(newModelConfig)
+    }
+  }
+}, [textGenerationModelList, hasFetchedDetail, modelModeType, currModel])
+```
+
+### Step 3: Create the Hook
+
+```typescript
+// hooks/use-model-config.ts
+import type { FormValue } from '@/app/components/header/account-setting/model-provider-page/declarations'
+import type { ModelConfig } from '@/models/debug'
+import { produce } from 'immer'
+import { useEffect, useState } from 'react'
+import { ModelModeType } from '@/types/app'
+
+interface UseModelConfigParams {
+  initialConfig?: Partial<ModelConfig>
+  currModel?: { model_properties?: { mode?: ModelModeType } }
+  hasFetchedDetail: boolean
+}
+
+interface UseModelConfigReturn {
+  modelConfig: ModelConfig
+  setModelConfig: (config: ModelConfig) => void
+  completionParams: FormValue
+  setCompletionParams: (params: FormValue) => void
+  modelModeType: ModelModeType
+}
+
+export const useModelConfig = ({
+  initialConfig,
+  currModel,
+  hasFetchedDetail,
+}: UseModelConfigParams): UseModelConfigReturn => {
+  const [modelConfig, setModelConfig] = useState<ModelConfig>({
+    provider: 'langgenius/openai/openai',
+    model_id: 'gpt-3.5-turbo',
+    mode: ModelModeType.unset,
+    // ... default values
+    ...initialConfig,
+  })
+  
+  const [completionParams, setCompletionParams] = useState<FormValue>({})
+  
+  const modelModeType = modelConfig.mode
+
+  // Fill old app data missing model mode
+  useEffect(() => {
+    if (hasFetchedDetail && !modelModeType) {
+      const mode = currModel?.model_properties?.mode
+      if (mode) {
+        setModelConfig(produce(modelConfig, (draft) => {
+          draft.mode = mode
+        }))
+      }
+    }
+  }, [hasFetchedDetail, modelModeType, currModel])
+
+  return {
+    modelConfig,
+    setModelConfig,
+    completionParams,
+    setCompletionParams,
+    modelModeType,
+  }
+}
+```
+
+### Step 4: Update Component
+
+```typescript
+// Before: 50+ lines of state management
+const Configuration: FC = () => {
+  const [modelConfig, setModelConfig] = useState<ModelConfig>(...)
+  // ... lots of related state and effects
+}
+
+// After: Clean component
+const Configuration: FC = () => {
+  const {
+    modelConfig,
+    setModelConfig,
+    completionParams,
+    setCompletionParams,
+    modelModeType,
+  } = useModelConfig({
+    currModel,
+    hasFetchedDetail,
+  })
+  
+  // Component now focuses on UI
+}
+```
+
+## Naming Conventions
+
+### Hook Names
+
+- Use `use` prefix: `useModelConfig`, `useDatasetConfig`
+- Be specific: `useAdvancedPromptConfig` not `usePrompt`
+- Include domain: `useWorkflowVariables`, `useMCPServer`
+
+### File Names
+
+- Kebab-case: `use-model-config.ts`
+- Place in `hooks/` subdirectory when multiple hooks exist
+- Place alongside component for single-use hooks
+
+### Return Type Names
+
+- Suffix with `Return`: `UseModelConfigReturn`
+- Suffix params with `Params`: `UseModelConfigParams`
+
+## Common Hook Patterns in Dify
+
+### 1. Data Fetching Hook (React Query)
+
+```typescript
+// Pattern: Use @tanstack/react-query for data fetching
+import { useQuery, useQueryClient } from '@tanstack/react-query'
+import { get } from '@/service/base'
+import { useInvalid } from '@/service/use-base'
+
+const NAME_SPACE = 'appConfig'
+
+// Query keys for cache management
+export const appConfigQueryKeys = {
+  detail: (appId: string) => [NAME_SPACE, 'detail', appId] as const,
+}
+
+// Main data hook
+export const useAppConfig = (appId: string) => {
+  return useQuery({
+    enabled: !!appId,
+    queryKey: appConfigQueryKeys.detail(appId),
+    queryFn: () => get<AppDetailResponse>(`/apps/${appId}`),
+    select: data => data?.model_config || null,
+  })
+}
+
+// Invalidation hook for refreshing data
+export const useInvalidAppConfig = () => {
+  return useInvalid([NAME_SPACE])
+}
+
+// Usage in component
+const Component = () => {
+  const { data: config, isLoading, error, refetch } = useAppConfig(appId)
+  const invalidAppConfig = useInvalidAppConfig()
+  
+  const handleRefresh = () => {
+    invalidAppConfig() // Invalidates cache and triggers refetch
+  }
+  
+  return <div>...</div>
+}
+```
+
+### 2. Form State Hook
+
+```typescript
+// Pattern: Form state + validation + submission
+export const useConfigForm = (initialValues: ConfigFormValues) => {
+  const [values, setValues] = useState(initialValues)
+  const [errors, setErrors] = useState<Record<string, string>>({})
+  const [isSubmitting, setIsSubmitting] = useState(false)
+
+  const validate = useCallback(() => {
+    const newErrors: Record<string, string> = {}
+    if (!values.name) newErrors.name = 'Name is required'
+    setErrors(newErrors)
+    return Object.keys(newErrors).length === 0
+  }, [values])
+
+  const handleChange = useCallback((field: string, value: any) => {
+    setValues(prev => ({ ...prev, [field]: value }))
+  }, [])
+
+  const handleSubmit = useCallback(async (onSubmit: (values: ConfigFormValues) => Promise<void>) => {
+    if (!validate()) return
+    setIsSubmitting(true)
+    try {
+      await onSubmit(values)
+    } finally {
+      setIsSubmitting(false)
+    }
+  }, [values, validate])
+
+  return { values, errors, isSubmitting, handleChange, handleSubmit }
+}
+```
+
+### 3. Modal State Hook
+
+```typescript
+// Pattern: Multiple modal management
+type ModalType = 'edit' | 'delete' | 'duplicate' | null
+
+export const useModalState = () => {
+  const [activeModal, setActiveModal] = useState<ModalType>(null)
+  const [modalData, setModalData] = useState<any>(null)
+
+  const openModal = useCallback((type: ModalType, data?: any) => {
+    setActiveModal(type)
+    setModalData(data)
+  }, [])
+
+  const closeModal = useCallback(() => {
+    setActiveModal(null)
+    setModalData(null)
+  }, [])
+
+  return {
+    activeModal,
+    modalData,
+    openModal,
+    closeModal,
+    isOpen: useCallback((type: ModalType) => activeModal === type, [activeModal]),
+  }
+}
+```
+
+### 4. Toggle/Boolean Hook
+
+```typescript
+// Pattern: Boolean state with convenience methods
+export const useToggle = (initialValue = false) => {
+  const [value, setValue] = useState(initialValue)
+
+  const toggle = useCallback(() => setValue(v => !v), [])
+  const setTrue = useCallback(() => setValue(true), [])
+  const setFalse = useCallback(() => setValue(false), [])
+
+  return [value, { toggle, setTrue, setFalse, set: setValue }] as const
+}
+
+// Usage
+const [isExpanded, { toggle, setTrue: expand, setFalse: collapse }] = useToggle()
+```
+
+## Testing Extracted Hooks
+
+After extraction, test hooks in isolation:
+
+```typescript
+// use-model-config.spec.ts
+import { renderHook, act } from '@testing-library/react'
+import { useModelConfig } from './use-model-config'
+
+describe('useModelConfig', () => {
+  it('should initialize with default values', () => {
+    const { result } = renderHook(() => useModelConfig({
+      hasFetchedDetail: false,
+    }))
+
+    expect(result.current.modelConfig.provider).toBe('langgenius/openai/openai')
+    expect(result.current.modelModeType).toBe(ModelModeType.unset)
+  })
+
+  it('should update model config', () => {
+    const { result } = renderHook(() => useModelConfig({
+      hasFetchedDetail: true,
+    }))
+
+    act(() => {
+      result.current.setModelConfig({
+        ...result.current.modelConfig,
+        model_id: 'gpt-4',
+      })
+    })
+
+    expect(result.current.modelConfig.model_id).toBe('gpt-4')
+  })
+})
+```

.claude/skills/e2e-cucumber-playwright

@@ -1 +0,0 @@
-../../.agents/skills/e2e-cucumber-playwright

.claude/skills/frontend-code-review

@@ -1 +0,0 @@
-../../.agents/skills/frontend-code-review

.claude/skills/frontend-code-review/SKILL.md

@@ -0,0 +1,73 @@
+---
+name: frontend-code-review
+description: "Trigger when the user requests a review of frontend files (e.g., `.tsx`, `.ts`, `.js`). Support both pending-change reviews and focused file reviews while applying the checklist rules."
+---
+
+# Frontend Code Review
+
+## Intent
+Use this skill whenever the user asks to review frontend code (especially `.tsx`, `.ts`, or `.js` files). Support two review modes:
+
+1. **Pending-change review** – inspect staged/working-tree files slated for commit and flag checklist violations before submission.
+2. **File-targeted review** – review the specific file(s) the user names and report the relevant checklist findings.
+
+Stick to the checklist below for every applicable file and mode.
+
+## Checklist
+See [references/code-quality.md](references/code-quality.md), [references/performance.md](references/performance.md), [references/business-logic.md](references/business-logic.md) for the living checklist split by category—treat it as the canonical set of rules to follow.
+
+Flag each rule violation with urgency metadata so future reviewers can prioritize fixes.
+
+## Review Process
+1. Open the relevant component/module. Gather lines that relate to class names, React Flow hooks, prop memoization, and styling.
+2. For each rule in the review point, note where the code deviates and capture a representative snippet.
+3. Compose the review section per the template below. Group violations first by **Urgent** flag, then by category order (Code Quality, Performance, Business Logic).
+
+## Required output
+When invoked, the response must exactly follow one of the two templates:
+
+### Template A (any findings)
+```
+# Code review
+Found <N> urgent issues need to be fixed:
+
+## 1 <brief description of bug>
+FilePath: <path> line <line>
+<relevant code snippet or pointer>
+
+
+### Suggested fix
+<brief description of suggested fix>
+
+---
+... (repeat for each urgent issue) ...
+
+Found <M> suggestions for improvement:
+
+## 1 <brief description of suggestion>
+FilePath: <path> line <line>
+<relevant code snippet or pointer>
+
+
+### Suggested fix
+<brief description of suggested fix>
+
+---
+
+... (repeat for each suggestion) ...
+```
+
+If there are no urgent issues, omit that section. If there are no suggestions, omit that section.
+
+If the issue number is more than 10, summarize as "10+ urgent issues" or "10+ suggestions" and just output the first 10 issues.
+
+Don't compress the blank lines between sections; keep them as-is for readability.
+
+If you use Template A (i.e., there are issues to fix) and at least one issue requires code changes, append a brief follow-up question after the structured output asking whether the user wants you to apply the suggested fix(es). For example: "Would you like me to use the Suggested fix section to address these issues?"
+
+### Template B (no issues)
+```
+## Code review
+No issues found.
+```
+

.claude/skills/frontend-code-review/references/business-logic.md

@@ -0,0 +1,15 @@
+# Rule Catalog — Business Logic
+
+## Can't use workflowStore in Node components
+
+IsUrgent: True
+
+### Description
+
+File path pattern of node components: `web/app/components/workflow/nodes/[nodeName]/node.tsx`
+
+Node components are also used when creating a RAG Pipe from a template, but in that context there is no workflowStore Provider, which results in a blank screen. [This Issue](https://github.com/langgenius/dify/issues/29168) was caused by exactly this reason.
+
+### Suggested Fix
+
+Use `import { useNodes } from 'reactflow'` instead of `import useNodes from '@/app/components/workflow/store/workflow/use-nodes'`.

.claude/skills/frontend-code-review/references/code-quality.md

@@ -0,0 +1,44 @@
+# Rule Catalog — Code Quality
+
+## Conditional class names use utility function
+
+IsUrgent: True
+Category: Code Quality
+
+### Description
+
+Ensure conditional CSS is handled via the shared `classNames` instead of custom ternaries, string concatenation, or template strings. Centralizing class logic keeps components consistent and easier to maintain.
+
+### Suggested Fix
+
+```ts
+import { cn } from '@/utils/classnames'
+const classNames = cn(isActive ? 'text-primary-600' : 'text-gray-500')
+```
+
+## Tailwind-first styling
+
+IsUrgent: True
+Category: Code Quality
+
+### Description
+
+Favor Tailwind CSS utility classes instead of adding new `.module.css` files unless a Tailwind combination cannot achieve the required styling. Keeping styles in Tailwind improves consistency and reduces maintenance overhead.
+
+Update this file when adding, editing, or removing Code Quality rules so the catalog remains accurate.
+
+## Classname ordering for easy overrides
+
+### Description
+
+When writing components, always place the incoming `className` prop after the component’s own class values so that downstream consumers can override or extend the styling. This keeps your component’s defaults but still lets external callers change or remove specific styles.
+
+Example:
+
+```tsx
+import { cn } from '@/utils/classnames'
+
+const Button = ({ className }) => {
+  return <div className={cn('bg-primary-600', className)}></div>
+}
+```

.claude/skills/frontend-code-review/references/performance.md

@@ -0,0 +1,45 @@
+# Rule Catalog — Performance
+
+## React Flow data usage
+
+IsUrgent: True
+Category: Performance
+
+### Description
+
+When rendering React Flow, prefer `useNodes`/`useEdges` for UI consumption and rely on `useStoreApi` inside callbacks that mutate or read node/edge state. Avoid manually pulling Flow data outside of these hooks.
+
+## Complex prop memoization
+
+IsUrgent: True
+Category: Performance
+
+### Description
+
+Wrap complex prop values (objects, arrays, maps) in `useMemo` prior to passing them into child components to guarantee stable references and prevent unnecessary renders.
+
+Update this file when adding, editing, or removing Performance rules so the catalog remains accurate.
+
+Wrong:
+
+```tsx
+<HeavyComp
+    config={{
+        provider: ...,
+        detail: ...
+    }}
+/>
+```
+
+Right:
+
+```tsx
+const config = useMemo(() => ({
+    provider: ...,
+    detail: ...
+}), [provider, detail]);
+
+<HeavyComp
+    config={config}
+/>
+```

.claude/skills/frontend-testing

@@ -1 +0,0 @@
-../../.agents/skills/frontend-testing

.claude/skills/frontend-testing/SKILL.md

@@ -0,0 +1,325 @@
+---
+name: frontend-testing
+description: Generate Vitest + React Testing Library tests for Dify frontend components, hooks, and utilities. Triggers on testing, spec files, coverage, Vitest, RTL, unit tests, integration tests, or write/review test requests.
+---
+
+# Dify Frontend Testing Skill
+
+This skill enables Claude to generate high-quality, comprehensive frontend tests for the Dify project following established conventions and best practices.
+
+> **⚠️ Authoritative Source**: This skill is derived from `web/testing/testing.md`. Use Vitest mock/timer APIs (`vi.*`).
+
+## When to Apply This Skill
+
+Apply this skill when the user:
+
+- Asks to **write tests** for a component, hook, or utility
+- Asks to **review existing tests** for completeness
+- Mentions **Vitest**, **React Testing Library**, **RTL**, or **spec files**
+- Requests **test coverage** improvement
+- Uses `pnpm analyze-component` output as context
+- Mentions **testing**, **unit tests**, or **integration tests** for frontend code
+- Wants to understand **testing patterns** in the Dify codebase
+
+**Do NOT apply** when:
+
+- User is asking about backend/API tests (Python/pytest)
+- User is asking about E2E tests (Playwright/Cypress)
+- User is only asking conceptual questions without code context
+
+## Quick Reference
+
+### Tech Stack
+
+| Tool | Version | Purpose |
+|------|---------|---------|
+| Vitest | 4.0.16 | Test runner |
+| React Testing Library | 16.0 | Component testing |
+| jsdom | - | Test environment |
+| nock | 14.0 | HTTP mocking |
+| TypeScript | 5.x | Type safety |
+
+### Key Commands
+
+```bash
+# Run all tests
+pnpm test
+
+# Watch mode
+pnpm test:watch
+
+# Run specific file
+pnpm test path/to/file.spec.tsx
+
+# Generate coverage report
+pnpm test:coverage
+
+# Analyze component complexity
+pnpm analyze-component <path>
+
+# Review existing test
+pnpm analyze-component <path> --review
+```
+
+### File Naming
+
+- Test files: `ComponentName.spec.tsx` (same directory as component)
+- Integration tests: `web/__tests__/` directory
+
+## Test Structure Template
+
+```typescript
+import { render, screen, fireEvent, waitFor } from '@testing-library/react'
+import Component from './index'
+
+// ✅ Import real project components (DO NOT mock these)
+// import Loading from '@/app/components/base/loading'
+// import { ChildComponent } from './child-component'
+
+// ✅ Mock external dependencies only
+vi.mock('@/service/api')
+vi.mock('next/navigation', () => ({
+  useRouter: () => ({ push: vi.fn() }),
+  usePathname: () => '/test',
+}))
+
+// ✅ Zustand stores: Use real stores (auto-mocked globally)
+// Set test state with: useAppStore.setState({ ... })
+
+// Shared state for mocks (if needed)
+let mockSharedState = false
+
+describe('ComponentName', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()  // ✅ Reset mocks BEFORE each test
+    mockSharedState = false  // ✅ Reset shared state
+  })
+
+  // Rendering tests (REQUIRED)
+  describe('Rendering', () => {
+    it('should render without crashing', () => {
+      // Arrange
+      const props = { title: 'Test' }
+      
+      // Act
+      render(<Component {...props} />)
+      
+      // Assert
+      expect(screen.getByText('Test')).toBeInTheDocument()
+    })
+  })
+
+  // Props tests (REQUIRED)
+  describe('Props', () => {
+    it('should apply custom className', () => {
+      render(<Component className="custom" />)
+      expect(screen.getByRole('button')).toHaveClass('custom')
+    })
+  })
+
+  // User Interactions
+  describe('User Interactions', () => {
+    it('should handle click events', () => {
+      const handleClick = vi.fn()
+      render(<Component onClick={handleClick} />)
+      
+      fireEvent.click(screen.getByRole('button'))
+      
+      expect(handleClick).toHaveBeenCalledTimes(1)
+    })
+  })
+
+  // Edge Cases (REQUIRED)
+  describe('Edge Cases', () => {
+    it('should handle null data', () => {
+      render(<Component data={null} />)
+      expect(screen.getByText(/no data/i)).toBeInTheDocument()
+    })
+
+    it('should handle empty array', () => {
+      render(<Component items={[]} />)
+      expect(screen.getByText(/empty/i)).toBeInTheDocument()
+    })
+  })
+})
+```
+
+## Testing Workflow (CRITICAL)
+
+### ⚠️ Incremental Approach Required
+
+**NEVER generate all test files at once.** For complex components or multi-file directories:
+
+1. **Analyze & Plan**: List all files, order by complexity (simple → complex)
+1. **Process ONE at a time**: Write test → Run test → Fix if needed → Next
+1. **Verify before proceeding**: Do NOT continue to next file until current passes
+
+```
+For each file:
+  ┌────────────────────────────────────────┐
+  │ 1. Write test                          │
+  │ 2. Run: pnpm test <file>.spec.tsx      │
+  │ 3. PASS? → Mark complete, next file    │
+  │    FAIL? → Fix first, then continue    │
+  └────────────────────────────────────────┘
+```
+
+### Complexity-Based Order
+
+Process in this order for multi-file testing:
+
+1. 🟢 Utility functions (simplest)
+1. 🟢 Custom hooks
+1. 🟡 Simple components (presentational)
+1. 🟡 Medium components (state, effects)
+1. 🔴 Complex components (API, routing)
+1. 🔴 Integration tests (index files - last)
+
+### When to Refactor First
+
+- **Complexity > 50**: Break into smaller pieces before testing
+- **500+ lines**: Consider splitting before testing
+- **Many dependencies**: Extract logic into hooks first
+
+> 📖 See `references/workflow.md` for complete workflow details and todo list format.
+
+## Testing Strategy
+
+### Path-Level Testing (Directory Testing)
+
+When assigned to test a directory/path, test **ALL content** within that path:
+
+- Test all components, hooks, utilities in the directory (not just `index` file)
+- Use incremental approach: one file at a time, verify each before proceeding
+- Goal: 100% coverage of ALL files in the directory
+
+### Integration Testing First
+
+**Prefer integration testing** when writing tests for a directory:
+
+- ✅ **Import real project components** directly (including base components and siblings)
+- ✅ **Only mock**: API services (`@/service/*`), `next/navigation`, complex context providers
+- ❌ **DO NOT mock** base components (`@/app/components/base/*`)
+- ❌ **DO NOT mock** sibling/child components in the same directory
+
+> See [Test Structure Template](#test-structure-template) for correct import/mock patterns.
+
+## Core Principles
+
+### 1. AAA Pattern (Arrange-Act-Assert)
+
+Every test should clearly separate:
+
+- **Arrange**: Setup test data and render component
+- **Act**: Perform user actions
+- **Assert**: Verify expected outcomes
+
+### 2. Black-Box Testing
+
+- Test observable behavior, not implementation details
+- Use semantic queries (getByRole, getByLabelText)
+- Avoid testing internal state directly
+- **Prefer pattern matching over hardcoded strings** in assertions:
+
+```typescript
+// ❌ Avoid: hardcoded text assertions
+expect(screen.getByText('Loading...')).toBeInTheDocument()
+
+// ✅ Better: role-based queries
+expect(screen.getByRole('status')).toBeInTheDocument()
+
+// ✅ Better: pattern matching
+expect(screen.getByText(/loading/i)).toBeInTheDocument()
+```
+
+### 3. Single Behavior Per Test
+
+Each test verifies ONE user-observable behavior:
+
+```typescript
+// ✅ Good: One behavior
+it('should disable button when loading', () => {
+  render(<Button loading />)
+  expect(screen.getByRole('button')).toBeDisabled()
+})
+
+// ❌ Bad: Multiple behaviors
+it('should handle loading state', () => {
+  render(<Button loading />)
+  expect(screen.getByRole('button')).toBeDisabled()
+  expect(screen.getByText('Loading...')).toBeInTheDocument()
+  expect(screen.getByRole('button')).toHaveClass('loading')
+})
+```
+
+### 4. Semantic Naming
+
+Use `should <behavior> when <condition>`:
+
+```typescript
+it('should show error message when validation fails')
+it('should call onSubmit when form is valid')
+it('should disable input when isReadOnly is true')
+```
+
+## Required Test Scenarios
+
+### Always Required (All Components)
+
+1. **Rendering**: Component renders without crashing
+1. **Props**: Required props, optional props, default values
+1. **Edge Cases**: null, undefined, empty values, boundary conditions
+
+### Conditional (When Present)
+
+| Feature | Test Focus |
+|---------|-----------|
+| `useState` | Initial state, transitions, cleanup |
+| `useEffect` | Execution, dependencies, cleanup |
+| Event handlers | All onClick, onChange, onSubmit, keyboard |
+| API calls | Loading, success, error states |
+| Routing | Navigation, params, query strings |
+| `useCallback`/`useMemo` | Referential equality |
+| Context | Provider values, consumer behavior |
+| Forms | Validation, submission, error display |
+
+## Coverage Goals (Per File)
+
+For each test file generated, aim for:
+
+- ✅ **100%** function coverage
+- ✅ **100%** statement coverage
+- ✅ **>95%** branch coverage
+- ✅ **>95%** line coverage
+
+> **Note**: For multi-file directories, process one file at a time with full coverage each. See `references/workflow.md`.
+
+## Detailed Guides
+
+For more detailed information, refer to:
+
+- `references/workflow.md` - **Incremental testing workflow** (MUST READ for multi-file testing)
+- `references/mocking.md` - Mock patterns, Zustand store testing, and best practices
+- `references/async-testing.md` - Async operations and API calls
+- `references/domain-components.md` - Workflow, Dataset, Configuration testing
+- `references/common-patterns.md` - Frequently used testing patterns
+- `references/checklist.md` - Test generation checklist and validation steps
+
+## Authoritative References
+
+### Primary Specification (MUST follow)
+
+- **`web/testing/testing.md`** - The canonical testing specification. This skill is derived from this document.
+
+### Reference Examples in Codebase
+
+- `web/utils/classnames.spec.ts` - Utility function tests
+- `web/app/components/base/button/index.spec.tsx` - Component tests
+- `web/__mocks__/provider-context.ts` - Mock factory example
+
+### Project Configuration
+
+- `web/vitest.config.ts` - Vitest configuration
+- `web/vitest.setup.ts` - Test environment setup
+- `web/scripts/analyze-component.js` - Component analysis tool
+- Modules are not mocked automatically. Global mocks live in `web/vitest.setup.ts` (for example `react-i18next`, `next/image`); mock other modules like `ky` or `mime` locally in test files.

.claude/skills/frontend-testing/assets/component-test.template.tsx

@@ -0,0 +1,293 @@
+/**
+ * Test Template for React Components
+ *
+ * WHY THIS STRUCTURE?
+ * - Organized sections make tests easy to navigate and maintain
+ * - Mocks at top ensure consistent test isolation
+ * - Factory functions reduce duplication and improve readability
+ * - describe blocks group related scenarios for better debugging
+ *
+ * INSTRUCTIONS:
+ * 1. Replace `ComponentName` with your component name
+ * 2. Update import path
+ * 3. Add/remove test sections based on component features (use analyze-component)
+ * 4. Follow AAA pattern: Arrange → Act → Assert
+ *
+ * RUN FIRST: pnpm analyze-component <path> to identify required test scenarios
+ */
+
+import { render, screen, fireEvent, waitFor } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+// import ComponentName from './index'
+
+// ============================================================================
+// Mocks
+// ============================================================================
+// WHY: Mocks must be hoisted to top of file (Vitest requirement).
+// They run BEFORE imports, so keep them before component imports.
+
+// i18n (automatically mocked)
+// WHY: Global mock in web/vitest.setup.ts is auto-loaded by Vitest setup
+// The global mock provides: useTranslation, Trans, useMixedTranslation, useGetLanguage
+// No explicit mock needed for most tests
+//
+// Override only if custom translations are required:
+// import { createReactI18nextMock } from '@/test/i18n-mock'
+// vi.mock('react-i18next', () => createReactI18nextMock({
+//   'my.custom.key': 'Custom Translation',
+//   'button.save': 'Save',
+// }))
+
+// Router (if component uses useRouter, usePathname, useSearchParams)
+// WHY: Isolates tests from Next.js routing, enables testing navigation behavior
+// const mockPush = vi.fn()
+// vi.mock('next/navigation', () => ({
+//   useRouter: () => ({ push: mockPush }),
+//   usePathname: () => '/test-path',
+// }))
+
+// API services (if component fetches data)
+// WHY: Prevents real network calls, enables testing all states (loading/success/error)
+// vi.mock('@/service/api')
+// import * as api from '@/service/api'
+// const mockedApi = vi.mocked(api)
+
+// Shared mock state (for portal/dropdown components)
+// WHY: Portal components like PortalToFollowElem need shared state between
+// parent and child mocks to correctly simulate open/close behavior
+// let mockOpenState = false
+
+// ============================================================================
+// Test Data Factories
+// ============================================================================
+// WHY FACTORIES?
+// - Avoid hard-coded test data scattered across tests
+// - Easy to create variations with overrides
+// - Type-safe when using actual types from source
+// - Single source of truth for default test values
+
+// const createMockProps = (overrides = {}) => ({
+//   // Default props that make component render successfully
+//   ...overrides,
+// })
+
+// const createMockItem = (overrides = {}) => ({
+//   id: 'item-1',
+//   name: 'Test Item',
+//   ...overrides,
+// })
+
+// ============================================================================
+// Test Helpers
+// ============================================================================
+
+// const renderComponent = (props = {}) => {
+//   return render(<ComponentName {...createMockProps(props)} />)
+// }
+
+// ============================================================================
+// Tests
+// ============================================================================
+
+describe('ComponentName', () => {
+  // WHY beforeEach with clearAllMocks?
+  // - Ensures each test starts with clean slate
+  // - Prevents mock call history from leaking between tests
+  // - MUST be beforeEach (not afterEach) to reset BEFORE assertions like toHaveBeenCalledTimes
+  beforeEach(() => {
+    vi.clearAllMocks()
+    // Reset shared mock state if used (CRITICAL for portal/dropdown tests)
+    // mockOpenState = false
+  })
+
+  // --------------------------------------------------------------------------
+  // Rendering Tests (REQUIRED - Every component MUST have these)
+  // --------------------------------------------------------------------------
+  // WHY: Catches import errors, missing providers, and basic render issues
+  describe('Rendering', () => {
+    it('should render without crashing', () => {
+      // Arrange - Setup data and mocks
+      // const props = createMockProps()
+
+      // Act - Render the component
+      // render(<ComponentName {...props} />)
+
+      // Assert - Verify expected output
+      // Prefer getByRole for accessibility; it's what users "see"
+      // expect(screen.getByRole('...')).toBeInTheDocument()
+    })
+
+    it('should render with default props', () => {
+      // WHY: Verifies component works without optional props
+      // render(<ComponentName />)
+      // expect(screen.getByText('...')).toBeInTheDocument()
+    })
+  })
+
+  // --------------------------------------------------------------------------
+  // Props Tests (REQUIRED - Every component MUST test prop behavior)
+  // --------------------------------------------------------------------------
+  // WHY: Props are the component's API contract. Test them thoroughly.
+  describe('Props', () => {
+    it('should apply custom className', () => {
+      // WHY: Common pattern in Dify - components should merge custom classes
+      // render(<ComponentName className="custom-class" />)
+      // expect(screen.getByTestId('component')).toHaveClass('custom-class')
+    })
+
+    it('should use default values for optional props', () => {
+      // WHY: Verifies TypeScript defaults work at runtime
+      // render(<ComponentName />)
+      // expect(screen.getByRole('...')).toHaveAttribute('...', 'default-value')
+    })
+  })
+
+  // --------------------------------------------------------------------------
+  // User Interactions (if component has event handlers - on*, handle*)
+  // --------------------------------------------------------------------------
+  // WHY: Event handlers are core functionality. Test from user's perspective.
+  describe('User Interactions', () => {
+    it('should call onClick when clicked', async () => {
+      // WHY userEvent over fireEvent?
+      // - userEvent simulates real user behavior (focus, hover, then click)
+      // - fireEvent is lower-level, doesn't trigger all browser events
+      // const user = userEvent.setup()
+      // const handleClick = vi.fn()
+      // render(<ComponentName onClick={handleClick} />)
+      //
+      // await user.click(screen.getByRole('button'))
+      //
+      // expect(handleClick).toHaveBeenCalledTimes(1)
+    })
+
+    it('should call onChange when value changes', async () => {
+      // const user = userEvent.setup()
+      // const handleChange = vi.fn()
+      // render(<ComponentName onChange={handleChange} />)
+      //
+      // await user.type(screen.getByRole('textbox'), 'new value')
+      //
+      // expect(handleChange).toHaveBeenCalled()
+    })
+  })
+
+  // --------------------------------------------------------------------------
+  // State Management (if component uses useState/useReducer)
+  // --------------------------------------------------------------------------
+  // WHY: Test state through observable UI changes, not internal state values
+  describe('State Management', () => {
+    it('should update state on interaction', async () => {
+      // WHY test via UI, not state?
+      // - State is implementation detail; UI is what users see
+      // - If UI works correctly, state must be correct
+      // const user = userEvent.setup()
+      // render(<ComponentName />)
+      //
+      // // Initial state - verify what user sees
+      // expect(screen.getByText('Initial')).toBeInTheDocument()
+      //
+      // // Trigger state change via user action
+      // await user.click(screen.getByRole('button'))
+      //
+      // // New state - verify UI updated
+      // expect(screen.getByText('Updated')).toBeInTheDocument()
+    })
+  })
+
+  // --------------------------------------------------------------------------
+  // Async Operations (if component fetches data - useQuery, fetch)
+  // --------------------------------------------------------------------------
+  // WHY: Async operations have 3 states users experience: loading, success, error
+  describe('Async Operations', () => {
+    it('should show loading state', () => {
+      // WHY never-resolving promise?
+      // - Keeps component in loading state for assertion
+      // - Alternative: use fake timers
+      // mockedApi.fetchData.mockImplementation(() => new Promise(() => {}))
+      // render(<ComponentName />)
+      //
+      // expect(screen.getByText(/loading/i)).toBeInTheDocument()
+    })
+
+    it('should show data on success', async () => {
+      // WHY waitFor?
+      // - Component updates asynchronously after fetch resolves
+      // - waitFor retries assertion until it passes or times out
+      // mockedApi.fetchData.mockResolvedValue({ items: ['Item 1'] })
+      // render(<ComponentName />)
+      //
+      // await waitFor(() => {
+      //   expect(screen.getByText('Item 1')).toBeInTheDocument()
+      // })
+    })
+
+    it('should show error on failure', async () => {
+      // mockedApi.fetchData.mockRejectedValue(new Error('Network error'))
+      // render(<ComponentName />)
+      //
+      // await waitFor(() => {
+      //   expect(screen.getByText(/error/i)).toBeInTheDocument()
+      // })
+    })
+  })
+
+  // --------------------------------------------------------------------------
+  // Edge Cases (REQUIRED - Every component MUST handle edge cases)
+  // --------------------------------------------------------------------------
+  // WHY: Real-world data is messy. Components must handle:
+  // - Null/undefined from API failures or optional fields
+  // - Empty arrays/strings from user clearing data
+  // - Boundary values (0, MAX_INT, special characters)
+  describe('Edge Cases', () => {
+    it('should handle null value', () => {
+      // WHY test null specifically?
+      // - API might return null for missing data
+      // - Prevents "Cannot read property of null" in production
+      // render(<ComponentName value={null} />)
+      // expect(screen.getByText(/no data/i)).toBeInTheDocument()
+    })
+
+    it('should handle undefined value', () => {
+      // WHY test undefined separately from null?
+      // - TypeScript treats them differently
+      // - Optional props are undefined, not null
+      // render(<ComponentName value={undefined} />)
+      // expect(screen.getByText(/no data/i)).toBeInTheDocument()
+    })
+
+    it('should handle empty array', () => {
+      // WHY: Empty state often needs special UI (e.g., "No items yet")
+      // render(<ComponentName items={[]} />)
+      // expect(screen.getByText(/empty/i)).toBeInTheDocument()
+    })
+
+    it('should handle empty string', () => {
+      // WHY: Empty strings are truthy in JS but visually empty
+      // render(<ComponentName text="" />)
+      // expect(screen.getByText(/placeholder/i)).toBeInTheDocument()
+    })
+  })
+
+  // --------------------------------------------------------------------------
+  // Accessibility (optional but recommended for Dify's enterprise users)
+  // --------------------------------------------------------------------------
+  // WHY: Dify has enterprise customers who may require accessibility compliance
+  describe('Accessibility', () => {
+    it('should have accessible name', () => {
+      // WHY getByRole with name?
+      // - Tests that screen readers can identify the element
+      // - Enforces proper labeling practices
+      // render(<ComponentName label="Test Label" />)
+      // expect(screen.getByRole('button', { name: /test label/i })).toBeInTheDocument()
+    })
+
+    it('should support keyboard navigation', async () => {
+      // WHY: Some users can't use a mouse
+      // const user = userEvent.setup()
+      // render(<ComponentName />)
+      //
+      // await user.tab()
+      // expect(screen.getByRole('button')).toHaveFocus()
+    })
+  })
+})

.claude/skills/frontend-testing/assets/hook-test.template.ts

@@ -0,0 +1,207 @@
+/**
+ * Test Template for Custom Hooks
+ *
+ * Instructions:
+ * 1. Replace `useHookName` with your hook name
+ * 2. Update import path
+ * 3. Add/remove test sections based on hook features
+ */
+
+import { renderHook, act, waitFor } from '@testing-library/react'
+// import { useHookName } from './use-hook-name'
+
+// ============================================================================
+// Mocks
+// ============================================================================
+
+// API services (if hook fetches data)
+// vi.mock('@/service/api')
+// import * as api from '@/service/api'
+// const mockedApi = vi.mocked(api)
+
+// ============================================================================
+// Test Helpers
+// ============================================================================
+
+// Wrapper for hooks that need context
+// const createWrapper = (contextValue = {}) => {
+//   return ({ children }: { children: React.ReactNode }) => (
+//     <SomeContext.Provider value={contextValue}>
+//       {children}
+//     </SomeContext.Provider>
+//   )
+// }
+
+// ============================================================================
+// Tests
+// ============================================================================
+
+describe('useHookName', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // --------------------------------------------------------------------------
+  // Initial State
+  // --------------------------------------------------------------------------
+  describe('Initial State', () => {
+    it('should return initial state', () => {
+      // const { result } = renderHook(() => useHookName())
+      //
+      // expect(result.current.value).toBe(initialValue)
+      // expect(result.current.isLoading).toBe(false)
+    })
+
+    it('should accept initial value from props', () => {
+      // const { result } = renderHook(() => useHookName({ initialValue: 'custom' }))
+      //
+      // expect(result.current.value).toBe('custom')
+    })
+  })
+
+  // --------------------------------------------------------------------------
+  // State Updates
+  // --------------------------------------------------------------------------
+  describe('State Updates', () => {
+    it('should update value when setValue is called', () => {
+      // const { result } = renderHook(() => useHookName())
+      //
+      // act(() => {
+      //   result.current.setValue('new value')
+      // })
+      //
+      // expect(result.current.value).toBe('new value')
+    })
+
+    it('should reset to initial value', () => {
+      // const { result } = renderHook(() => useHookName({ initialValue: 'initial' }))
+      //
+      // act(() => {
+      //   result.current.setValue('changed')
+      // })
+      // expect(result.current.value).toBe('changed')
+      //
+      // act(() => {
+      //   result.current.reset()
+      // })
+      // expect(result.current.value).toBe('initial')
+    })
+  })
+
+  // --------------------------------------------------------------------------
+  // Async Operations
+  // --------------------------------------------------------------------------
+  describe('Async Operations', () => {
+    it('should fetch data on mount', async () => {
+      // mockedApi.fetchData.mockResolvedValue({ data: 'test' })
+      //
+      // const { result } = renderHook(() => useHookName())
+      //
+      // // Initially loading
+      // expect(result.current.isLoading).toBe(true)
+      //
+      // // Wait for data
+      // await waitFor(() => {
+      //   expect(result.current.isLoading).toBe(false)
+      // })
+      //
+      // expect(result.current.data).toEqual({ data: 'test' })
+    })
+
+    it('should handle fetch error', async () => {
+      // mockedApi.fetchData.mockRejectedValue(new Error('Network error'))
+      //
+      // const { result } = renderHook(() => useHookName())
+      //
+      // await waitFor(() => {
+      //   expect(result.current.error).toBeTruthy()
+      // })
+      //
+      // expect(result.current.error?.message).toBe('Network error')
+    })
+
+    it('should refetch when dependency changes', async () => {
+      // mockedApi.fetchData.mockResolvedValue({ data: 'test' })
+      //
+      // const { result, rerender } = renderHook(
+      //   ({ id }) => useHookName(id),
+      //   { initialProps: { id: '1' } }
+      // )
+      //
+      // await waitFor(() => {
+      //   expect(mockedApi.fetchData).toHaveBeenCalledWith('1')
+      // })
+      //
+      // rerender({ id: '2' })
+      //
+      // await waitFor(() => {
+      //   expect(mockedApi.fetchData).toHaveBeenCalledWith('2')
+      // })
+    })
+  })
+
+  // --------------------------------------------------------------------------
+  // Side Effects
+  // --------------------------------------------------------------------------
+  describe('Side Effects', () => {
+    it('should call callback when value changes', () => {
+      // const callback = vi.fn()
+      // const { result } = renderHook(() => useHookName({ onChange: callback }))
+      //
+      // act(() => {
+      //   result.current.setValue('new value')
+      // })
+      //
+      // expect(callback).toHaveBeenCalledWith('new value')
+    })
+
+    it('should cleanup on unmount', () => {
+      // const cleanup = vi.fn()
+      // vi.spyOn(window, 'addEventListener')
+      // vi.spyOn(window, 'removeEventListener')
+      //
+      // const { unmount } = renderHook(() => useHookName())
+      //
+      // expect(window.addEventListener).toHaveBeenCalled()
+      //
+      // unmount()
+      //
+      // expect(window.removeEventListener).toHaveBeenCalled()
+    })
+  })
+
+  // --------------------------------------------------------------------------
+  // Edge Cases
+  // --------------------------------------------------------------------------
+  describe('Edge Cases', () => {
+    it('should handle null input', () => {
+      // const { result } = renderHook(() => useHookName(null))
+      //
+      // expect(result.current.value).toBeNull()
+    })
+
+    it('should handle rapid updates', () => {
+      // const { result } = renderHook(() => useHookName())
+      //
+      // act(() => {
+      //   result.current.setValue('1')
+      //   result.current.setValue('2')
+      //   result.current.setValue('3')
+      // })
+      //
+      // expect(result.current.value).toBe('3')
+    })
+  })
+
+  // --------------------------------------------------------------------------
+  // With Context (if hook uses context)
+  // --------------------------------------------------------------------------
+  describe('With Context', () => {
+    it('should use context value', () => {
+      // const wrapper = createWrapper({ someValue: 'context-value' })
+      // const { result } = renderHook(() => useHookName(), { wrapper })
+      //
+      // expect(result.current.contextValue).toBe('context-value')
+    })
+  })
+})

.claude/skills/frontend-testing/assets/utility-test.template.ts

@@ -0,0 +1,154 @@
+/**
+ * Test Template for Utility Functions
+ *
+ * Instructions:
+ * 1. Replace `utilityFunction` with your function name
+ * 2. Update import path
+ * 3. Use test.each for data-driven tests
+ */
+
+// import { utilityFunction } from './utility'
+
+// ============================================================================
+// Tests
+// ============================================================================
+
+describe('utilityFunction', () => {
+  // --------------------------------------------------------------------------
+  // Basic Functionality
+  // --------------------------------------------------------------------------
+  describe('Basic Functionality', () => {
+    it('should return expected result for valid input', () => {
+      // expect(utilityFunction('input')).toBe('expected-output')
+    })
+
+    it('should handle multiple arguments', () => {
+      // expect(utilityFunction('a', 'b', 'c')).toBe('abc')
+    })
+  })
+
+  // --------------------------------------------------------------------------
+  // Data-Driven Tests
+  // --------------------------------------------------------------------------
+  describe('Input/Output Mapping', () => {
+    test.each([
+      // [input, expected]
+      ['input1', 'output1'],
+      ['input2', 'output2'],
+      ['input3', 'output3'],
+    ])('should return %s for input %s', (input, expected) => {
+      // expect(utilityFunction(input)).toBe(expected)
+    })
+  })
+
+  // --------------------------------------------------------------------------
+  // Edge Cases
+  // --------------------------------------------------------------------------
+  describe('Edge Cases', () => {
+    it('should handle empty string', () => {
+      // expect(utilityFunction('')).toBe('')
+    })
+
+    it('should handle null', () => {
+      // expect(utilityFunction(null)).toBe(null)
+      // or
+      // expect(() => utilityFunction(null)).toThrow()
+    })
+
+    it('should handle undefined', () => {
+      // expect(utilityFunction(undefined)).toBe(undefined)
+      // or
+      // expect(() => utilityFunction(undefined)).toThrow()
+    })
+
+    it('should handle empty array', () => {
+      // expect(utilityFunction([])).toEqual([])
+    })
+
+    it('should handle empty object', () => {
+      // expect(utilityFunction({})).toEqual({})
+    })
+  })
+
+  // --------------------------------------------------------------------------
+  // Boundary Conditions
+  // --------------------------------------------------------------------------
+  describe('Boundary Conditions', () => {
+    it('should handle minimum value', () => {
+      // expect(utilityFunction(0)).toBe(0)
+    })
+
+    it('should handle maximum value', () => {
+      // expect(utilityFunction(Number.MAX_SAFE_INTEGER)).toBe(...)
+    })
+
+    it('should handle negative numbers', () => {
+      // expect(utilityFunction(-1)).toBe(...)
+    })
+  })
+
+  // --------------------------------------------------------------------------
+  // Type Coercion (if applicable)
+  // --------------------------------------------------------------------------
+  describe('Type Handling', () => {
+    it('should handle numeric string', () => {
+      // expect(utilityFunction('123')).toBe(123)
+    })
+
+    it('should handle boolean', () => {
+      // expect(utilityFunction(true)).toBe(...)
+    })
+  })
+
+  // --------------------------------------------------------------------------
+  // Error Cases
+  // --------------------------------------------------------------------------
+  describe('Error Handling', () => {
+    it('should throw for invalid input', () => {
+      // expect(() => utilityFunction('invalid')).toThrow('Error message')
+    })
+
+    it('should throw with specific error type', () => {
+      // expect(() => utilityFunction('invalid')).toThrow(ValidationError)
+    })
+  })
+
+  // --------------------------------------------------------------------------
+  // Complex Objects (if applicable)
+  // --------------------------------------------------------------------------
+  describe('Object Handling', () => {
+    it('should preserve object structure', () => {
+      // const input = { a: 1, b: 2 }
+      // expect(utilityFunction(input)).toEqual({ a: 1, b: 2 })
+    })
+
+    it('should handle nested objects', () => {
+      // const input = { nested: { deep: 'value' } }
+      // expect(utilityFunction(input)).toEqual({ nested: { deep: 'transformed' } })
+    })
+
+    it('should not mutate input', () => {
+      // const input = { a: 1 }
+      // const inputCopy = { ...input }
+      // utilityFunction(input)
+      // expect(input).toEqual(inputCopy)
+    })
+  })
+
+  // --------------------------------------------------------------------------
+  // Array Handling (if applicable)
+  // --------------------------------------------------------------------------
+  describe('Array Handling', () => {
+    it('should process all elements', () => {
+      // expect(utilityFunction([1, 2, 3])).toEqual([2, 4, 6])
+    })
+
+    it('should handle single element array', () => {
+      // expect(utilityFunction([1])).toEqual([2])
+    })
+
+    it('should preserve order', () => {
+      // expect(utilityFunction(['c', 'a', 'b'])).toEqual(['c', 'a', 'b'])
+    })
+  })
+})

.claude/skills/frontend-testing/references/async-testing.md

@@ -0,0 +1,345 @@
+# Async Testing Guide
+
+## Core Async Patterns
+
+### 1. waitFor - Wait for Condition
+
+```typescript
+import { render, screen, waitFor } from '@testing-library/react'
+
+it('should load and display data', async () => {
+  render(<DataComponent />)
+  
+  // Wait for element to appear
+  await waitFor(() => {
+    expect(screen.getByText('Loaded Data')).toBeInTheDocument()
+  })
+})
+
+it('should hide loading spinner after load', async () => {
+  render(<DataComponent />)
+  
+  // Wait for element to disappear
+  await waitFor(() => {
+    expect(screen.queryByText('Loading...')).not.toBeInTheDocument()
+  })
+})
+```
+
+### 2. findBy\* - Async Queries
+
+```typescript
+it('should show user name after fetch', async () => {
+  render(<UserProfile />)
+  
+  // findBy returns a promise, auto-waits up to 1000ms
+  const userName = await screen.findByText('John Doe')
+  expect(userName).toBeInTheDocument()
+  
+  // findByRole with options
+  const button = await screen.findByRole('button', { name: /submit/i })
+  expect(button).toBeEnabled()
+})
+```
+
+### 3. userEvent for Async Interactions
+
+```typescript
+import userEvent from '@testing-library/user-event'
+
+it('should submit form', async () => {
+  const user = userEvent.setup()
+  const onSubmit = vi.fn()
+  
+  render(<Form onSubmit={onSubmit} />)
+  
+  // userEvent methods are async
+  await user.type(screen.getByLabelText('Email'), 'test@example.com')
+  await user.click(screen.getByRole('button', { name: /submit/i }))
+  
+  await waitFor(() => {
+    expect(onSubmit).toHaveBeenCalledWith({ email: 'test@example.com' })
+  })
+})
+```
+
+## Fake Timers
+
+### When to Use Fake Timers
+
+- Testing components with `setTimeout`/`setInterval`
+- Testing debounce/throttle behavior
+- Testing animations or delayed transitions
+- Testing polling or retry logic
+
+### Basic Fake Timer Setup
+
+```typescript
+describe('Debounced Search', () => {
+  beforeEach(() => {
+    vi.useFakeTimers()
+  })
+
+  afterEach(() => {
+    vi.useRealTimers()
+  })
+
+  it('should debounce search input', async () => {
+    const onSearch = vi.fn()
+    render(<SearchInput onSearch={onSearch} debounceMs={300} />)
+    
+    // Type in the input
+    fireEvent.change(screen.getByRole('textbox'), { target: { value: 'query' } })
+    
+    // Search not called immediately
+    expect(onSearch).not.toHaveBeenCalled()
+    
+    // Advance timers
+    vi.advanceTimersByTime(300)
+    
+    // Now search is called
+    expect(onSearch).toHaveBeenCalledWith('query')
+  })
+})
+```
+
+### Fake Timers with Async Code
+
+```typescript
+it('should retry on failure', async () => {
+  vi.useFakeTimers()
+  const fetchData = vi.fn()
+    .mockRejectedValueOnce(new Error('Network error'))
+    .mockResolvedValueOnce({ data: 'success' })
+  
+  render(<RetryComponent fetchData={fetchData} retryDelayMs={1000} />)
+  
+  // First call fails
+  await waitFor(() => {
+    expect(fetchData).toHaveBeenCalledTimes(1)
+  })
+  
+  // Advance timer for retry
+  vi.advanceTimersByTime(1000)
+  
+  // Second call succeeds
+  await waitFor(() => {
+    expect(fetchData).toHaveBeenCalledTimes(2)
+    expect(screen.getByText('success')).toBeInTheDocument()
+  })
+  
+  vi.useRealTimers()
+})
+```
+
+### Common Fake Timer Utilities
+
+```typescript
+// Run all pending timers
+vi.runAllTimers()
+
+// Run only pending timers (not new ones created during execution)
+vi.runOnlyPendingTimers()
+
+// Advance by specific time
+vi.advanceTimersByTime(1000)
+
+// Get current fake time
+Date.now()
+
+// Clear all timers
+vi.clearAllTimers()
+```
+
+## API Testing Patterns
+
+### Loading → Success → Error States
+
+```typescript
+describe('DataFetcher', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  it('should show loading state', () => {
+    mockedApi.fetchData.mockImplementation(() => new Promise(() => {})) // Never resolves
+    
+    render(<DataFetcher />)
+    
+    expect(screen.getByTestId('loading-spinner')).toBeInTheDocument()
+  })
+
+  it('should show data on success', async () => {
+    mockedApi.fetchData.mockResolvedValue({ items: ['Item 1', 'Item 2'] })
+    
+    render(<DataFetcher />)
+    
+    // Use findBy* for multiple async elements (better error messages than waitFor with multiple assertions)
+    const item1 = await screen.findByText('Item 1')
+    const item2 = await screen.findByText('Item 2')
+    expect(item1).toBeInTheDocument()
+    expect(item2).toBeInTheDocument()
+    
+    expect(screen.queryByTestId('loading-spinner')).not.toBeInTheDocument()
+  })
+
+  it('should show error on failure', async () => {
+    mockedApi.fetchData.mockRejectedValue(new Error('Failed to fetch'))
+    
+    render(<DataFetcher />)
+    
+    await waitFor(() => {
+      expect(screen.getByText(/failed to fetch/i)).toBeInTheDocument()
+    })
+  })
+
+  it('should retry on error', async () => {
+    mockedApi.fetchData.mockRejectedValue(new Error('Network error'))
+    
+    render(<DataFetcher />)
+    
+    await waitFor(() => {
+      expect(screen.getByRole('button', { name: /retry/i })).toBeInTheDocument()
+    })
+    
+    mockedApi.fetchData.mockResolvedValue({ items: ['Item 1'] })
+    fireEvent.click(screen.getByRole('button', { name: /retry/i }))
+    
+    await waitFor(() => {
+      expect(screen.getByText('Item 1')).toBeInTheDocument()
+    })
+  })
+})
+```
+
+### Testing Mutations
+
+```typescript
+it('should submit form and show success', async () => {
+  const user = userEvent.setup()
+  mockedApi.createItem.mockResolvedValue({ id: '1', name: 'New Item' })
+  
+  render(<CreateItemForm />)
+  
+  await user.type(screen.getByLabelText('Name'), 'New Item')
+  await user.click(screen.getByRole('button', { name: /create/i }))
+  
+  // Button should be disabled during submission
+  expect(screen.getByRole('button', { name: /creating/i })).toBeDisabled()
+  
+  await waitFor(() => {
+    expect(screen.getByText(/created successfully/i)).toBeInTheDocument()
+  })
+  
+  expect(mockedApi.createItem).toHaveBeenCalledWith({ name: 'New Item' })
+})
+```
+
+## useEffect Testing
+
+### Testing Effect Execution
+
+```typescript
+it('should fetch data on mount', async () => {
+  const fetchData = vi.fn().mockResolvedValue({ data: 'test' })
+  
+  render(<ComponentWithEffect fetchData={fetchData} />)
+  
+  await waitFor(() => {
+    expect(fetchData).toHaveBeenCalledTimes(1)
+  })
+})
+```
+
+### Testing Effect Dependencies
+
+```typescript
+it('should refetch when id changes', async () => {
+  const fetchData = vi.fn().mockResolvedValue({ data: 'test' })
+  
+  const { rerender } = render(<ComponentWithEffect id="1" fetchData={fetchData} />)
+  
+  await waitFor(() => {
+    expect(fetchData).toHaveBeenCalledWith('1')
+  })
+  
+  rerender(<ComponentWithEffect id="2" fetchData={fetchData} />)
+  
+  await waitFor(() => {
+    expect(fetchData).toHaveBeenCalledWith('2')
+    expect(fetchData).toHaveBeenCalledTimes(2)
+  })
+})
+```
+
+### Testing Effect Cleanup
+
+```typescript
+it('should cleanup subscription on unmount', () => {
+  const subscribe = vi.fn()
+  const unsubscribe = vi.fn()
+  subscribe.mockReturnValue(unsubscribe)
+  
+  const { unmount } = render(<SubscriptionComponent subscribe={subscribe} />)
+  
+  expect(subscribe).toHaveBeenCalledTimes(1)
+  
+  unmount()
+  
+  expect(unsubscribe).toHaveBeenCalledTimes(1)
+})
+```
+
+## Common Async Pitfalls
+
+### ❌ Don't: Forget to await
+
+```typescript
+// Bad - test may pass even if assertion fails
+it('should load data', () => {
+  render(<Component />)
+  waitFor(() => {
+    expect(screen.getByText('Data')).toBeInTheDocument()
+  })
+})
+
+// Good - properly awaited
+it('should load data', async () => {
+  render(<Component />)
+  await waitFor(() => {
+    expect(screen.getByText('Data')).toBeInTheDocument()
+  })
+})
+```
+
+### ❌ Don't: Use multiple assertions in single waitFor
+
+```typescript
+// Bad - if first assertion fails, won't know about second
+await waitFor(() => {
+  expect(screen.getByText('Title')).toBeInTheDocument()
+  expect(screen.getByText('Description')).toBeInTheDocument()
+})
+
+// Good - separate waitFor or use findBy
+const title = await screen.findByText('Title')
+const description = await screen.findByText('Description')
+expect(title).toBeInTheDocument()
+expect(description).toBeInTheDocument()
+```
+
+### ❌ Don't: Mix fake timers with real async
+
+```typescript
+// Bad - fake timers don't work well with real Promises
+vi.useFakeTimers()
+await waitFor(() => {
+  expect(screen.getByText('Data')).toBeInTheDocument()
+}) // May timeout!
+
+// Good - use runAllTimers or advanceTimersByTime
+vi.useFakeTimers()
+render(<Component />)
+vi.runAllTimers()
+expect(screen.getByText('Data')).toBeInTheDocument()
+```

.claude/skills/frontend-testing/references/checklist.md

@@ -0,0 +1,205 @@
+# Test Generation Checklist
+
+Use this checklist when generating or reviewing tests for Dify frontend components.
+
+## Pre-Generation
+
+- [ ] Read the component source code completely
+- [ ] Identify component type (component, hook, utility, page)
+- [ ] Run `pnpm analyze-component <path>` if available
+- [ ] Note complexity score and features detected
+- [ ] Check for existing tests in the same directory
+- [ ] **Identify ALL files in the directory** that need testing (not just index)
+
+## Testing Strategy
+
+### ⚠️ Incremental Workflow (CRITICAL for Multi-File)
+
+- [ ] **NEVER generate all tests at once** - process one file at a time
+- [ ] Order files by complexity: utilities → hooks → simple → complex → integration
+- [ ] Create a todo list to track progress before starting
+- [ ] For EACH file: write → run test → verify pass → then next
+- [ ] **DO NOT proceed** to next file until current one passes
+
+### Path-Level Coverage
+
+- [ ] **Test ALL files** in the assigned directory/path
+- [ ] List all components, hooks, utilities that need coverage
+- [ ] Decide: single spec file (integration) or multiple spec files (unit)
+
+### Complexity Assessment
+
+- [ ] Run `pnpm analyze-component <path>` for complexity score
+- [ ] **Complexity > 50**: Consider refactoring before testing
+- [ ] **500+ lines**: Consider splitting before testing
+- [ ] **30-50 complexity**: Use multiple describe blocks, organized structure
+
+### Integration vs Mocking
+
+- [ ] **DO NOT mock base components** (`Loading`, `Button`, `Tooltip`, etc.)
+- [ ] Import real project components instead of mocking
+- [ ] Only mock: API calls, complex context providers, third-party libs with side effects
+- [ ] Prefer integration testing when using single spec file
+
+## Required Test Sections
+
+### All Components MUST Have
+
+- [ ] **Rendering tests** - Component renders without crashing
+- [ ] **Props tests** - Required props, optional props, default values
+- [ ] **Edge cases** - null, undefined, empty values, boundaries
+
+### Conditional Sections (Add When Feature Present)
+
+| Feature | Add Tests For |
+|---------|---------------|
+| `useState` | Initial state, transitions, cleanup |
+| `useEffect` | Execution, dependencies, cleanup |
+| Event handlers | onClick, onChange, onSubmit, keyboard |
+| API calls | Loading, success, error states |
+| Routing | Navigation, params, query strings |
+| `useCallback`/`useMemo` | Referential equality |
+| Context | Provider values, consumer behavior |
+| Forms | Validation, submission, error display |
+
+## Code Quality Checklist
+
+### Structure
+
+- [ ] Uses `describe` blocks to group related tests
+- [ ] Test names follow `should <behavior> when <condition>` pattern
+- [ ] AAA pattern (Arrange-Act-Assert) is clear
+- [ ] Comments explain complex test scenarios
+
+### Mocks
+
+- [ ] **DO NOT mock base components** (`@/app/components/base/*`)
+- [ ] `vi.clearAllMocks()` in `beforeEach` (not `afterEach`)
+- [ ] Shared mock state reset in `beforeEach`
+- [ ] i18n uses global mock (auto-loaded in `web/vitest.setup.ts`); only override locally for custom translations
+- [ ] Router mocks match actual Next.js API
+- [ ] Mocks reflect actual component conditional behavior
+- [ ] Only mock: API services, complex context providers, third-party libs
+
+### Queries
+
+- [ ] Prefer semantic queries (`getByRole`, `getByLabelText`)
+- [ ] Use `queryBy*` for absence assertions
+- [ ] Use `findBy*` for async elements
+- [ ] `getByTestId` only as last resort
+
+### Async
+
+- [ ] All async tests use `async/await`
+- [ ] `waitFor` wraps async assertions
+- [ ] Fake timers properly setup/teardown
+- [ ] No floating promises
+
+### TypeScript
+
+- [ ] No `any` types without justification
+- [ ] Mock data uses actual types from source
+- [ ] Factory functions have proper return types
+
+## Coverage Goals (Per File)
+
+For the current file being tested:
+
+- [ ] 100% function coverage
+- [ ] 100% statement coverage
+- [ ] >95% branch coverage
+- [ ] >95% line coverage
+
+## Post-Generation (Per File)
+
+**Run these checks after EACH test file, not just at the end:**
+
+- [ ] Run `pnpm test path/to/file.spec.tsx` - **MUST PASS before next file**
+- [ ] Fix any failures immediately
+- [ ] Mark file as complete in todo list
+- [ ] Only then proceed to next file
+
+### After All Files Complete
+
+- [ ] Run full directory test: `pnpm test path/to/directory/`
+- [ ] Check coverage report: `pnpm test:coverage`
+- [ ] Run `pnpm lint:fix` on all test files
+- [ ] Run `pnpm type-check:tsgo`
+
+## Common Issues to Watch
+
+### False Positives
+
+```typescript
+// ❌ Mock doesn't match actual behavior
+vi.mock('./Component', () => () => <div>Mocked</div>)
+
+// ✅ Mock matches actual conditional logic
+vi.mock('./Component', () => ({ isOpen }: any) =>
+  isOpen ? <div>Content</div> : null
+)
+```
+
+### State Leakage
+
+```typescript
+// ❌ Shared state not reset
+let mockState = false
+vi.mock('./useHook', () => () => mockState)
+
+// ✅ Reset in beforeEach
+beforeEach(() => {
+  mockState = false
+})
+```
+
+### Async Race Conditions
+
+```typescript
+// ❌ Not awaited
+it('loads data', () => {
+  render(<Component />)
+  expect(screen.getByText('Data')).toBeInTheDocument()
+})
+
+// ✅ Properly awaited
+it('loads data', async () => {
+  render(<Component />)
+  await waitFor(() => {
+    expect(screen.getByText('Data')).toBeInTheDocument()
+  })
+})
+```
+
+### Missing Edge Cases
+
+Always test these scenarios:
+
+- `null` / `undefined` inputs
+- Empty strings / arrays / objects
+- Boundary values (0, -1, MAX_INT)
+- Error states
+- Loading states
+- Disabled states
+
+## Quick Commands
+
+```bash
+# Run specific test
+pnpm test path/to/file.spec.tsx
+
+# Run with coverage
+pnpm test:coverage path/to/file.spec.tsx
+
+# Watch mode
+pnpm test:watch path/to/file.spec.tsx
+
+# Update snapshots (use sparingly)
+pnpm test -u path/to/file.spec.tsx
+
+# Analyze component
+pnpm analyze-component path/to/component.tsx
+
+# Review existing test
+pnpm analyze-component path/to/component.tsx --review
+```

.claude/skills/frontend-testing/references/common-patterns.md

@@ -0,0 +1,449 @@
+# Common Testing Patterns
+
+## Query Priority
+
+Use queries in this order (most to least preferred):
+
+```typescript
+// 1. getByRole - Most recommended (accessibility)
+screen.getByRole('button', { name: /submit/i })
+screen.getByRole('textbox', { name: /email/i })
+screen.getByRole('heading', { level: 1 })
+
+// 2. getByLabelText - Form fields
+screen.getByLabelText('Email address')
+screen.getByLabelText(/password/i)
+
+// 3. getByPlaceholderText - When no label
+screen.getByPlaceholderText('Search...')
+
+// 4. getByText - Non-interactive elements
+screen.getByText('Welcome to Dify')
+screen.getByText(/loading/i)
+
+// 5. getByDisplayValue - Current input value
+screen.getByDisplayValue('current value')
+
+// 6. getByAltText - Images
+screen.getByAltText('Company logo')
+
+// 7. getByTitle - Tooltip elements
+screen.getByTitle('Close')
+
+// 8. getByTestId - Last resort only!
+screen.getByTestId('custom-element')
+```
+
+## Event Handling Patterns
+
+### Click Events
+
+```typescript
+// Basic click
+fireEvent.click(screen.getByRole('button'))
+
+// With userEvent (preferred for realistic interaction)
+const user = userEvent.setup()
+await user.click(screen.getByRole('button'))
+
+// Double click
+await user.dblClick(screen.getByRole('button'))
+
+// Right click
+await user.pointer({ keys: '[MouseRight]', target: screen.getByRole('button') })
+```
+
+### Form Input
+
+```typescript
+const user = userEvent.setup()
+
+// Type in input
+await user.type(screen.getByRole('textbox'), 'Hello World')
+
+// Clear and type
+await user.clear(screen.getByRole('textbox'))
+await user.type(screen.getByRole('textbox'), 'New value')
+
+// Select option
+await user.selectOptions(screen.getByRole('combobox'), 'option-value')
+
+// Check checkbox
+await user.click(screen.getByRole('checkbox'))
+
+// Upload file
+const file = new File(['content'], 'test.pdf', { type: 'application/pdf' })
+await user.upload(screen.getByLabelText(/upload/i), file)
+```
+
+### Keyboard Events
+
+```typescript
+const user = userEvent.setup()
+
+// Press Enter
+await user.keyboard('{Enter}')
+
+// Press Escape
+await user.keyboard('{Escape}')
+
+// Keyboard shortcut
+await user.keyboard('{Control>}a{/Control}') // Ctrl+A
+
+// Tab navigation
+await user.tab()
+
+// Arrow keys
+await user.keyboard('{ArrowDown}')
+await user.keyboard('{ArrowUp}')
+```
+
+## Component State Testing
+
+### Testing State Transitions
+
+```typescript
+describe('Counter', () => {
+  it('should increment count', async () => {
+    const user = userEvent.setup()
+    render(<Counter initialCount={0} />)
+    
+    // Initial state
+    expect(screen.getByText('Count: 0')).toBeInTheDocument()
+    
+    // Trigger transition
+    await user.click(screen.getByRole('button', { name: /increment/i }))
+    
+    // New state
+    expect(screen.getByText('Count: 1')).toBeInTheDocument()
+  })
+})
+```
+
+### Testing Controlled Components
+
+```typescript
+describe('ControlledInput', () => {
+  it('should call onChange with new value', async () => {
+    const user = userEvent.setup()
+    const handleChange = vi.fn()
+    
+    render(<ControlledInput value="" onChange={handleChange} />)
+    
+    await user.type(screen.getByRole('textbox'), 'a')
+    
+    expect(handleChange).toHaveBeenCalledWith('a')
+  })
+
+  it('should display controlled value', () => {
+    render(<ControlledInput value="controlled" onChange={vi.fn()} />)
+    
+    expect(screen.getByRole('textbox')).toHaveValue('controlled')
+  })
+})
+```
+
+## Conditional Rendering Testing
+
+```typescript
+describe('ConditionalComponent', () => {
+  it('should show loading state', () => {
+    render(<DataDisplay isLoading={true} data={null} />)
+    
+    expect(screen.getByText(/loading/i)).toBeInTheDocument()
+    expect(screen.queryByTestId('data-content')).not.toBeInTheDocument()
+  })
+
+  it('should show error state', () => {
+    render(<DataDisplay isLoading={false} data={null} error="Failed to load" />)
+    
+    expect(screen.getByText(/failed to load/i)).toBeInTheDocument()
+  })
+
+  it('should show data when loaded', () => {
+    render(<DataDisplay isLoading={false} data={{ name: 'Test' }} />)
+    
+    expect(screen.getByText('Test')).toBeInTheDocument()
+  })
+
+  it('should show empty state when no data', () => {
+    render(<DataDisplay isLoading={false} data={[]} />)
+    
+    expect(screen.getByText(/no data/i)).toBeInTheDocument()
+  })
+})
+```
+
+## List Rendering Testing
+
+```typescript
+describe('ItemList', () => {
+  const items = [
+    { id: '1', name: 'Item 1' },
+    { id: '2', name: 'Item 2' },
+    { id: '3', name: 'Item 3' },
+  ]
+
+  it('should render all items', () => {
+    render(<ItemList items={items} />)
+    
+    expect(screen.getAllByRole('listitem')).toHaveLength(3)
+    items.forEach(item => {
+      expect(screen.getByText(item.name)).toBeInTheDocument()
+    })
+  })
+
+  it('should handle item selection', async () => {
+    const user = userEvent.setup()
+    const onSelect = vi.fn()
+    
+    render(<ItemList items={items} onSelect={onSelect} />)
+    
+    await user.click(screen.getByText('Item 2'))
+    
+    expect(onSelect).toHaveBeenCalledWith(items[1])
+  })
+
+  it('should handle empty list', () => {
+    render(<ItemList items={[]} />)
+    
+    expect(screen.getByText(/no items/i)).toBeInTheDocument()
+  })
+})
+```
+
+## Modal/Dialog Testing
+
+```typescript
+describe('Modal', () => {
+  it('should not render when closed', () => {
+    render(<Modal isOpen={false} onClose={vi.fn()} />)
+    
+    expect(screen.queryByRole('dialog')).not.toBeInTheDocument()
+  })
+
+  it('should render when open', () => {
+    render(<Modal isOpen={true} onClose={vi.fn()} />)
+    
+    expect(screen.getByRole('dialog')).toBeInTheDocument()
+  })
+
+  it('should call onClose when clicking overlay', async () => {
+    const user = userEvent.setup()
+    const handleClose = vi.fn()
+    
+    render(<Modal isOpen={true} onClose={handleClose} />)
+    
+    await user.click(screen.getByTestId('modal-overlay'))
+    
+    expect(handleClose).toHaveBeenCalled()
+  })
+
+  it('should call onClose when pressing Escape', async () => {
+    const user = userEvent.setup()
+    const handleClose = vi.fn()
+    
+    render(<Modal isOpen={true} onClose={handleClose} />)
+    
+    await user.keyboard('{Escape}')
+    
+    expect(handleClose).toHaveBeenCalled()
+  })
+
+  it('should trap focus inside modal', async () => {
+    const user = userEvent.setup()
+    
+    render(
+      <Modal isOpen={true} onClose={vi.fn()}>
+        <button>First</button>
+        <button>Second</button>
+      </Modal>
+    )
+    
+    // Focus should cycle within modal
+    await user.tab()
+    expect(screen.getByText('First')).toHaveFocus()
+    
+    await user.tab()
+    expect(screen.getByText('Second')).toHaveFocus()
+    
+    await user.tab()
+    expect(screen.getByText('First')).toHaveFocus() // Cycles back
+  })
+})
+```
+
+## Form Testing
+
+```typescript
+describe('LoginForm', () => {
+  it('should submit valid form', async () => {
+    const user = userEvent.setup()
+    const onSubmit = vi.fn()
+    
+    render(<LoginForm onSubmit={onSubmit} />)
+    
+    await user.type(screen.getByLabelText(/email/i), 'test@example.com')
+    await user.type(screen.getByLabelText(/password/i), 'password123')
+    await user.click(screen.getByRole('button', { name: /sign in/i }))
+    
+    expect(onSubmit).toHaveBeenCalledWith({
+      email: 'test@example.com',
+      password: 'password123',
+    })
+  })
+
+  it('should show validation errors', async () => {
+    const user = userEvent.setup()
+    
+    render(<LoginForm onSubmit={vi.fn()} />)
+    
+    // Submit empty form
+    await user.click(screen.getByRole('button', { name: /sign in/i }))
+    
+    expect(screen.getByText(/email is required/i)).toBeInTheDocument()
+    expect(screen.getByText(/password is required/i)).toBeInTheDocument()
+  })
+
+  it('should validate email format', async () => {
+    const user = userEvent.setup()
+    
+    render(<LoginForm onSubmit={vi.fn()} />)
+    
+    await user.type(screen.getByLabelText(/email/i), 'invalid-email')
+    await user.click(screen.getByRole('button', { name: /sign in/i }))
+    
+    expect(screen.getByText(/invalid email/i)).toBeInTheDocument()
+  })
+
+  it('should disable submit button while submitting', async () => {
+    const user = userEvent.setup()
+    const onSubmit = vi.fn(() => new Promise(resolve => setTimeout(resolve, 100)))
+    
+    render(<LoginForm onSubmit={onSubmit} />)
+    
+    await user.type(screen.getByLabelText(/email/i), 'test@example.com')
+    await user.type(screen.getByLabelText(/password/i), 'password123')
+    await user.click(screen.getByRole('button', { name: /sign in/i }))
+    
+    expect(screen.getByRole('button', { name: /signing in/i })).toBeDisabled()
+    
+    await waitFor(() => {
+      expect(screen.getByRole('button', { name: /sign in/i })).toBeEnabled()
+    })
+  })
+})
+```
+
+## Data-Driven Tests with test.each
+
+```typescript
+describe('StatusBadge', () => {
+  test.each([
+    ['success', 'bg-green-500'],
+    ['warning', 'bg-yellow-500'],
+    ['error', 'bg-red-500'],
+    ['info', 'bg-blue-500'],
+  ])('should apply correct class for %s status', (status, expectedClass) => {
+    render(<StatusBadge status={status} />)
+    
+    expect(screen.getByTestId('status-badge')).toHaveClass(expectedClass)
+  })
+
+  test.each([
+    { input: null, expected: 'Unknown' },
+    { input: undefined, expected: 'Unknown' },
+    { input: '', expected: 'Unknown' },
+    { input: 'invalid', expected: 'Unknown' },
+  ])('should show "Unknown" for invalid input: $input', ({ input, expected }) => {
+    render(<StatusBadge status={input} />)
+    
+    expect(screen.getByText(expected)).toBeInTheDocument()
+  })
+})
+```
+
+## Debugging Tips
+
+```typescript
+// Print entire DOM
+screen.debug()
+
+// Print specific element
+screen.debug(screen.getByRole('button'))
+
+// Log testing playground URL
+screen.logTestingPlaygroundURL()
+
+// Pretty print DOM
+import { prettyDOM } from '@testing-library/react'
+console.log(prettyDOM(screen.getByRole('dialog')))
+
+// Check available roles
+import { getRoles } from '@testing-library/react'
+console.log(getRoles(container))
+```
+
+## Common Mistakes to Avoid
+
+### ❌ Don't Use Implementation Details
+
+```typescript
+// Bad - testing implementation
+expect(component.state.isOpen).toBe(true)
+expect(wrapper.find('.internal-class').length).toBe(1)
+
+// Good - testing behavior
+expect(screen.getByRole('dialog')).toBeInTheDocument()
+```
+
+### ❌ Don't Forget Cleanup
+
+```typescript
+// Bad - may leak state between tests
+it('test 1', () => {
+  render(<Component />)
+})
+
+// Good - cleanup is automatic with RTL, but reset mocks
+beforeEach(() => {
+  vi.clearAllMocks()
+})
+```
+
+### ❌ Don't Use Exact String Matching (Prefer Black-Box Assertions)
+
+```typescript
+// ❌ Bad - hardcoded strings are brittle
+expect(screen.getByText('Submit Form')).toBeInTheDocument()
+expect(screen.getByText('Loading...')).toBeInTheDocument()
+
+// ✅ Good - role-based queries (most semantic)
+expect(screen.getByRole('button', { name: /submit/i })).toBeInTheDocument()
+expect(screen.getByRole('status')).toBeInTheDocument()
+
+// ✅ Good - pattern matching (flexible)
+expect(screen.getByText(/submit/i)).toBeInTheDocument()
+expect(screen.getByText(/loading/i)).toBeInTheDocument()
+
+// ✅ Good - test behavior, not exact UI text
+expect(screen.getByRole('button')).toBeDisabled()
+expect(screen.getByRole('alert')).toBeInTheDocument()
+```
+
+**Why prefer black-box assertions?**
+
+- Text content may change (i18n, copy updates)
+- Role-based queries test accessibility
+- Pattern matching is resilient to minor changes
+- Tests focus on behavior, not implementation details
+
+### ❌ Don't Assert on Absence Without Query
+
+```typescript
+// Bad - throws if not found
+expect(screen.getByText('Error')).not.toBeInTheDocument() // Error!
+
+// Good - use queryBy for absence assertions
+expect(screen.queryByText('Error')).not.toBeInTheDocument()
+```

.claude/skills/frontend-testing/references/domain-components.md

@@ -0,0 +1,523 @@
+# Domain-Specific Component Testing
+
+This guide covers testing patterns for Dify's domain-specific components.
+
+## Workflow Components (`workflow/`)
+
+Workflow components handle node configuration, data flow, and graph operations.
+
+### Key Test Areas
+
+1. **Node Configuration**
+1. **Data Validation**
+1. **Variable Passing**
+1. **Edge Connections**
+1. **Error Handling**
+
+### Example: Node Configuration Panel
+
+```typescript
+import { render, screen, fireEvent, waitFor } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import NodeConfigPanel from './node-config-panel'
+import { createMockNode, createMockWorkflowContext } from '@/__mocks__/workflow'
+
+// Mock workflow context
+vi.mock('@/app/components/workflow/hooks', () => ({
+  useWorkflowStore: () => mockWorkflowStore,
+  useNodesInteractions: () => mockNodesInteractions,
+}))
+
+let mockWorkflowStore = {
+  nodes: [],
+  edges: [],
+  updateNode: vi.fn(),
+}
+
+let mockNodesInteractions = {
+  handleNodeSelect: vi.fn(),
+  handleNodeDelete: vi.fn(),
+}
+
+describe('NodeConfigPanel', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockWorkflowStore = {
+      nodes: [],
+      edges: [],
+      updateNode: vi.fn(),
+    }
+  })
+
+  describe('Node Configuration', () => {
+    it('should render node type selector', () => {
+      const node = createMockNode({ type: 'llm' })
+      render(<NodeConfigPanel node={node} />)
+      
+      expect(screen.getByLabelText(/model/i)).toBeInTheDocument()
+    })
+
+    it('should update node config on change', async () => {
+      const user = userEvent.setup()
+      const node = createMockNode({ type: 'llm' })
+      
+      render(<NodeConfigPanel node={node} />)
+      
+      await user.selectOptions(screen.getByLabelText(/model/i), 'gpt-4')
+      
+      expect(mockWorkflowStore.updateNode).toHaveBeenCalledWith(
+        node.id,
+        expect.objectContaining({ model: 'gpt-4' })
+      )
+    })
+  })
+
+  describe('Data Validation', () => {
+    it('should show error for invalid input', async () => {
+      const user = userEvent.setup()
+      const node = createMockNode({ type: 'code' })
+      
+      render(<NodeConfigPanel node={node} />)
+      
+      // Enter invalid code
+      const codeInput = screen.getByLabelText(/code/i)
+      await user.clear(codeInput)
+      await user.type(codeInput, 'invalid syntax {{{')
+      
+      await waitFor(() => {
+        expect(screen.getByText(/syntax error/i)).toBeInTheDocument()
+      })
+    })
+
+    it('should validate required fields', async () => {
+      const node = createMockNode({ type: 'http', data: { url: '' } })
+      
+      render(<NodeConfigPanel node={node} />)
+      
+      fireEvent.click(screen.getByRole('button', { name: /save/i }))
+      
+      await waitFor(() => {
+        expect(screen.getByText(/url is required/i)).toBeInTheDocument()
+      })
+    })
+  })
+
+  describe('Variable Passing', () => {
+    it('should display available variables from upstream nodes', () => {
+      const upstreamNode = createMockNode({
+        id: 'node-1',
+        type: 'start',
+        data: { outputs: [{ name: 'user_input', type: 'string' }] },
+      })
+      const currentNode = createMockNode({
+        id: 'node-2',
+        type: 'llm',
+      })
+      
+      mockWorkflowStore.nodes = [upstreamNode, currentNode]
+      mockWorkflowStore.edges = [{ source: 'node-1', target: 'node-2' }]
+      
+      render(<NodeConfigPanel node={currentNode} />)
+      
+      // Variable selector should show upstream variables
+      fireEvent.click(screen.getByRole('button', { name: /add variable/i }))
+      
+      expect(screen.getByText('user_input')).toBeInTheDocument()
+    })
+
+    it('should insert variable into prompt template', async () => {
+      const user = userEvent.setup()
+      const node = createMockNode({ type: 'llm' })
+      
+      render(<NodeConfigPanel node={node} />)
+      
+      // Click variable button
+      await user.click(screen.getByRole('button', { name: /insert variable/i }))
+      await user.click(screen.getByText('user_input'))
+      
+      const promptInput = screen.getByLabelText(/prompt/i)
+      expect(promptInput).toHaveValue(expect.stringContaining('{{user_input}}'))
+    })
+  })
+})
+```
+
+## Dataset Components (`dataset/`)
+
+Dataset components handle file uploads, data display, and search/filter operations.
+
+### Key Test Areas
+
+1. **File Upload**
+1. **File Type Validation**
+1. **Pagination**
+1. **Search & Filtering**
+1. **Data Format Handling**
+
+### Example: Document Uploader
+
+```typescript
+import { render, screen, fireEvent, waitFor } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import DocumentUploader from './document-uploader'
+
+vi.mock('@/service/datasets', () => ({
+  uploadDocument: vi.fn(),
+  parseDocument: vi.fn(),
+}))
+
+import * as datasetService from '@/service/datasets'
+const mockedService = vi.mocked(datasetService)
+
+describe('DocumentUploader', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  describe('File Upload', () => {
+    it('should accept valid file types', async () => {
+      const user = userEvent.setup()
+      const onUpload = vi.fn()
+      mockedService.uploadDocument.mockResolvedValue({ id: 'doc-1' })
+      
+      render(<DocumentUploader onUpload={onUpload} />)
+      
+      const file = new File(['content'], 'test.pdf', { type: 'application/pdf' })
+      const input = screen.getByLabelText(/upload/i)
+      
+      await user.upload(input, file)
+      
+      await waitFor(() => {
+        expect(mockedService.uploadDocument).toHaveBeenCalledWith(
+          expect.any(FormData)
+        )
+      })
+    })
+
+    it('should reject invalid file types', async () => {
+      const user = userEvent.setup()
+      
+      render(<DocumentUploader />)
+      
+      const file = new File(['content'], 'test.exe', { type: 'application/x-msdownload' })
+      const input = screen.getByLabelText(/upload/i)
+      
+      await user.upload(input, file)
+      
+      expect(screen.getByText(/unsupported file type/i)).toBeInTheDocument()
+      expect(mockedService.uploadDocument).not.toHaveBeenCalled()
+    })
+
+    it('should show upload progress', async () => {
+      const user = userEvent.setup()
+      
+      // Mock upload with progress
+      mockedService.uploadDocument.mockImplementation(() => {
+        return new Promise((resolve) => {
+          setTimeout(() => resolve({ id: 'doc-1' }), 100)
+        })
+      })
+      
+      render(<DocumentUploader />)
+      
+      const file = new File(['content'], 'test.pdf', { type: 'application/pdf' })
+      await user.upload(screen.getByLabelText(/upload/i), file)
+      
+      expect(screen.getByRole('progressbar')).toBeInTheDocument()
+      
+      await waitFor(() => {
+        expect(screen.queryByRole('progressbar')).not.toBeInTheDocument()
+      })
+    })
+  })
+
+  describe('Error Handling', () => {
+    it('should handle upload failure', async () => {
+      const user = userEvent.setup()
+      mockedService.uploadDocument.mockRejectedValue(new Error('Upload failed'))
+      
+      render(<DocumentUploader />)
+      
+      const file = new File(['content'], 'test.pdf', { type: 'application/pdf' })
+      await user.upload(screen.getByLabelText(/upload/i), file)
+      
+      await waitFor(() => {
+        expect(screen.getByText(/upload failed/i)).toBeInTheDocument()
+      })
+    })
+
+    it('should allow retry after failure', async () => {
+      const user = userEvent.setup()
+      mockedService.uploadDocument
+        .mockRejectedValueOnce(new Error('Network error'))
+        .mockResolvedValueOnce({ id: 'doc-1' })
+      
+      render(<DocumentUploader />)
+      
+      const file = new File(['content'], 'test.pdf', { type: 'application/pdf' })
+      await user.upload(screen.getByLabelText(/upload/i), file)
+      
+      await waitFor(() => {
+        expect(screen.getByRole('button', { name: /retry/i })).toBeInTheDocument()
+      })
+      
+      await user.click(screen.getByRole('button', { name: /retry/i }))
+      
+      await waitFor(() => {
+        expect(screen.getByText(/uploaded successfully/i)).toBeInTheDocument()
+      })
+    })
+  })
+})
+```
+
+### Example: Document List with Pagination
+
+```typescript
+describe('DocumentList', () => {
+  describe('Pagination', () => {
+    it('should load first page on mount', async () => {
+      mockedService.getDocuments.mockResolvedValue({
+        data: [{ id: '1', name: 'Doc 1' }],
+        total: 50,
+        page: 1,
+        pageSize: 10,
+      })
+      
+      render(<DocumentList datasetId="ds-1" />)
+      
+      await waitFor(() => {
+        expect(screen.getByText('Doc 1')).toBeInTheDocument()
+      })
+      
+      expect(mockedService.getDocuments).toHaveBeenCalledWith('ds-1', { page: 1 })
+    })
+
+    it('should navigate to next page', async () => {
+      const user = userEvent.setup()
+      mockedService.getDocuments.mockResolvedValue({
+        data: [{ id: '1', name: 'Doc 1' }],
+        total: 50,
+        page: 1,
+        pageSize: 10,
+      })
+      
+      render(<DocumentList datasetId="ds-1" />)
+      
+      await waitFor(() => {
+        expect(screen.getByText('Doc 1')).toBeInTheDocument()
+      })
+      
+      mockedService.getDocuments.mockResolvedValue({
+        data: [{ id: '11', name: 'Doc 11' }],
+        total: 50,
+        page: 2,
+        pageSize: 10,
+      })
+      
+      await user.click(screen.getByRole('button', { name: /next/i }))
+      
+      await waitFor(() => {
+        expect(screen.getByText('Doc 11')).toBeInTheDocument()
+      })
+    })
+  })
+
+  describe('Search & Filtering', () => {
+    it('should filter by search query', async () => {
+      const user = userEvent.setup()
+      vi.useFakeTimers()
+      
+      render(<DocumentList datasetId="ds-1" />)
+      
+      await user.type(screen.getByPlaceholderText(/search/i), 'test query')
+      
+      // Debounce
+      vi.advanceTimersByTime(300)
+      
+      await waitFor(() => {
+        expect(mockedService.getDocuments).toHaveBeenCalledWith(
+          'ds-1',
+          expect.objectContaining({ search: 'test query' })
+        )
+      })
+      
+      vi.useRealTimers()
+    })
+  })
+})
+```
+
+## Configuration Components (`app/configuration/`, `config/`)
+
+Configuration components handle forms, validation, and data persistence.
+
+### Key Test Areas
+
+1. **Form Validation**
+1. **Save/Reset**
+1. **Required vs Optional Fields**
+1. **Configuration Persistence**
+1. **Error Feedback**
+
+### Example: App Configuration Form
+
+```typescript
+import { render, screen, fireEvent, waitFor } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import AppConfigForm from './app-config-form'
+
+vi.mock('@/service/apps', () => ({
+  updateAppConfig: vi.fn(),
+  getAppConfig: vi.fn(),
+}))
+
+import * as appService from '@/service/apps'
+const mockedService = vi.mocked(appService)
+
+describe('AppConfigForm', () => {
+  const defaultConfig = {
+    name: 'My App',
+    description: '',
+    icon: 'default',
+    openingStatement: '',
+  }
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockedService.getAppConfig.mockResolvedValue(defaultConfig)
+  })
+
+  describe('Form Validation', () => {
+    it('should require app name', async () => {
+      const user = userEvent.setup()
+      
+      render(<AppConfigForm appId="app-1" />)
+      
+      await waitFor(() => {
+        expect(screen.getByLabelText(/name/i)).toHaveValue('My App')
+      })
+      
+      // Clear name field
+      await user.clear(screen.getByLabelText(/name/i))
+      await user.click(screen.getByRole('button', { name: /save/i }))
+      
+      expect(screen.getByText(/name is required/i)).toBeInTheDocument()
+      expect(mockedService.updateAppConfig).not.toHaveBeenCalled()
+    })
+
+    it('should validate name length', async () => {
+      const user = userEvent.setup()
+      
+      render(<AppConfigForm appId="app-1" />)
+      
+      await waitFor(() => {
+        expect(screen.getByLabelText(/name/i)).toBeInTheDocument()
+      })
+      
+      // Enter very long name
+      await user.clear(screen.getByLabelText(/name/i))
+      await user.type(screen.getByLabelText(/name/i), 'a'.repeat(101))
+      
+      expect(screen.getByText(/name must be less than 100 characters/i)).toBeInTheDocument()
+    })
+
+    it('should allow empty optional fields', async () => {
+      const user = userEvent.setup()
+      mockedService.updateAppConfig.mockResolvedValue({ success: true })
+      
+      render(<AppConfigForm appId="app-1" />)
+      
+      await waitFor(() => {
+        expect(screen.getByLabelText(/name/i)).toHaveValue('My App')
+      })
+      
+      // Leave description empty (optional)
+      await user.click(screen.getByRole('button', { name: /save/i }))
+      
+      await waitFor(() => {
+        expect(mockedService.updateAppConfig).toHaveBeenCalled()
+      })
+    })
+  })
+
+  describe('Save/Reset Functionality', () => {
+    it('should save configuration', async () => {
+      const user = userEvent.setup()
+      mockedService.updateAppConfig.mockResolvedValue({ success: true })
+      
+      render(<AppConfigForm appId="app-1" />)
+      
+      await waitFor(() => {
+        expect(screen.getByLabelText(/name/i)).toHaveValue('My App')
+      })
+      
+      await user.clear(screen.getByLabelText(/name/i))
+      await user.type(screen.getByLabelText(/name/i), 'Updated App')
+      await user.click(screen.getByRole('button', { name: /save/i }))
+      
+      await waitFor(() => {
+        expect(mockedService.updateAppConfig).toHaveBeenCalledWith(
+          'app-1',
+          expect.objectContaining({ name: 'Updated App' })
+        )
+      })
+      
+      expect(screen.getByText(/saved successfully/i)).toBeInTheDocument()
+    })
+
+    it('should reset to default values', async () => {
+      const user = userEvent.setup()
+      
+      render(<AppConfigForm appId="app-1" />)
+      
+      await waitFor(() => {
+        expect(screen.getByLabelText(/name/i)).toHaveValue('My App')
+      })
+      
+      // Make changes
+      await user.clear(screen.getByLabelText(/name/i))
+      await user.type(screen.getByLabelText(/name/i), 'Changed Name')
+      
+      // Reset
+      await user.click(screen.getByRole('button', { name: /reset/i }))
+      
+      expect(screen.getByLabelText(/name/i)).toHaveValue('My App')
+    })
+
+    it('should show unsaved changes warning', async () => {
+      const user = userEvent.setup()
+      
+      render(<AppConfigForm appId="app-1" />)
+      
+      await waitFor(() => {
+        expect(screen.getByLabelText(/name/i)).toHaveValue('My App')
+      })
+      
+      // Make changes
+      await user.type(screen.getByLabelText(/name/i), ' Updated')
+      
+      expect(screen.getByText(/unsaved changes/i)).toBeInTheDocument()
+    })
+  })
+
+  describe('Error Handling', () => {
+    it('should show error on save failure', async () => {
+      const user = userEvent.setup()
+      mockedService.updateAppConfig.mockRejectedValue(new Error('Server error'))
+      
+      render(<AppConfigForm appId="app-1" />)
+      
+      await waitFor(() => {
+        expect(screen.getByLabelText(/name/i)).toHaveValue('My App')
+      })
+      
+      await user.click(screen.getByRole('button', { name: /save/i }))
+      
+      await waitFor(() => {
+        expect(screen.getByText(/failed to save/i)).toBeInTheDocument()
+      })
+    })
+  })
+})
+```

.claude/skills/frontend-testing/references/mocking.md

@@ -0,0 +1,512 @@
+# Mocking Guide for Dify Frontend Tests
+
+## ⚠️ Important: What NOT to Mock
+
+### DO NOT Mock Base Components
+
+**Never mock components from `@/app/components/base/`** such as:
+
+- `Loading`, `Spinner`
+- `Button`, `Input`, `Select`
+- `Tooltip`, `Modal`, `Dropdown`
+- `Icon`, `Badge`, `Tag`
+
+**Why?**
+
+- Base components will have their own dedicated tests
+- Mocking them creates false positives (tests pass but real integration fails)
+- Using real components tests actual integration behavior
+
+```typescript
+// ❌ WRONG: Don't mock base components
+vi.mock('@/app/components/base/loading', () => () => <div>Loading</div>)
+vi.mock('@/app/components/base/button', () => ({ children }: any) => <button>{children}</button>)
+
+// ✅ CORRECT: Import and use real base components
+import Loading from '@/app/components/base/loading'
+import Button from '@/app/components/base/button'
+// They will render normally in tests
+```
+
+### What TO Mock
+
+Only mock these categories:
+
+1. **API services** (`@/service/*`) - Network calls
+1. **Complex context providers** - When setup is too difficult
+1. **Third-party libraries with side effects** - `next/navigation`, external SDKs
+1. **i18n** - Always mock to return keys
+
+### Zustand Stores - DO NOT Mock Manually
+
+**Zustand is globally mocked** in `web/vitest.setup.ts`. Use real stores with `setState()`:
+
+```typescript
+// ✅ CORRECT: Use real store, set test state
+import { useAppStore } from '@/app/components/app/store'
+
+useAppStore.setState({ appDetail: { id: 'test', name: 'Test' } })
+render(<MyComponent />)
+
+// ❌ WRONG: Don't mock the store module
+vi.mock('@/app/components/app/store', () => ({ ... }))
+```
+
+See [Zustand Store Testing](#zustand-store-testing) section for full details.
+
+## Mock Placement
+
+| Location | Purpose |
+|----------|---------|
+| `web/vitest.setup.ts` | Global mocks shared by all tests (`react-i18next`, `next/image`, `zustand`) |
+| `web/__mocks__/zustand.ts` | Zustand mock implementation (auto-resets stores after each test) |
+| `web/__mocks__/` | Reusable mock factories shared across multiple test files |
+| Test file | Test-specific mocks, inline with `vi.mock()` |
+
+Modules are not mocked automatically. Use `vi.mock` in test files, or add global mocks in `web/vitest.setup.ts`.
+
+**Note**: Zustand is special - it's globally mocked but you should NOT mock store modules manually. See [Zustand Store Testing](#zustand-store-testing).
+
+## Essential Mocks
+
+### 1. i18n (Auto-loaded via Global Mock)
+
+A global mock is defined in `web/vitest.setup.ts` and is auto-loaded by Vitest setup.
+
+The global mock provides:
+
+- `useTranslation` - returns translation keys with namespace prefix
+- `Trans` component - renders i18nKey and components
+- `useMixedTranslation` (from `@/app/components/plugins/marketplace/hooks`)
+- `useGetLanguage` (from `@/context/i18n`) - returns `'en-US'`
+
+**Default behavior**: Most tests should use the global mock (no local override needed).
+
+**For custom translations**: Use the helper function from `@/test/i18n-mock`:
+
+```typescript
+import { createReactI18nextMock } from '@/test/i18n-mock'
+
+vi.mock('react-i18next', () => createReactI18nextMock({
+  'my.custom.key': 'Custom translation',
+  'button.save': 'Save',
+}))
+```
+
+**Avoid**: Manually defining `useTranslation` mocks that just return the key - the global mock already does this.
+
+### 2. Next.js Router
+
+```typescript
+const mockPush = vi.fn()
+const mockReplace = vi.fn()
+
+vi.mock('next/navigation', () => ({
+  useRouter: () => ({
+    push: mockPush,
+    replace: mockReplace,
+    back: vi.fn(),
+    prefetch: vi.fn(),
+  }),
+  usePathname: () => '/current-path',
+  useSearchParams: () => new URLSearchParams('?key=value'),
+}))
+
+describe('Component', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  it('should navigate on click', () => {
+    render(<Component />)
+    fireEvent.click(screen.getByRole('button'))
+    expect(mockPush).toHaveBeenCalledWith('/expected-path')
+  })
+})
+```
+
+### 3. Portal Components (with Shared State)
+
+```typescript
+// ⚠️ Important: Use shared state for components that depend on each other
+let mockPortalOpenState = false
+
+vi.mock('@/app/components/base/portal-to-follow-elem', () => ({
+  PortalToFollowElem: ({ children, open, ...props }: any) => {
+    mockPortalOpenState = open || false  // Update shared state
+    return <div data-testid="portal" data-open={open}>{children}</div>
+  },
+  PortalToFollowElemContent: ({ children }: any) => {
+    // ✅ Matches actual: returns null when portal is closed
+    if (!mockPortalOpenState) return null
+    return <div data-testid="portal-content">{children}</div>
+  },
+  PortalToFollowElemTrigger: ({ children }: any) => (
+    <div data-testid="portal-trigger">{children}</div>
+  ),
+}))
+
+describe('Component', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockPortalOpenState = false  // ✅ Reset shared state
+  })
+})
+```
+
+### 4. API Service Mocks
+
+```typescript
+import * as api from '@/service/api'
+
+vi.mock('@/service/api')
+
+const mockedApi = vi.mocked(api)
+
+describe('Component', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    
+    // Setup default mock implementation
+    mockedApi.fetchData.mockResolvedValue({ data: [] })
+  })
+
+  it('should show data on success', async () => {
+    mockedApi.fetchData.mockResolvedValue({ data: [{ id: 1 }] })
+    
+    render(<Component />)
+    
+    await waitFor(() => {
+      expect(screen.getByText('1')).toBeInTheDocument()
+    })
+  })
+
+  it('should show error on failure', async () => {
+    mockedApi.fetchData.mockRejectedValue(new Error('Network error'))
+    
+    render(<Component />)
+    
+    await waitFor(() => {
+      expect(screen.getByText(/error/i)).toBeInTheDocument()
+    })
+  })
+})
+```
+
+### 5. HTTP Mocking with Nock
+
+```typescript
+import nock from 'nock'
+
+const GITHUB_HOST = 'https://api.github.com'
+const GITHUB_PATH = '/repos/owner/repo'
+
+const mockGithubApi = (status: number, body: Record<string, unknown>, delayMs = 0) => {
+  return nock(GITHUB_HOST)
+    .get(GITHUB_PATH)
+    .delay(delayMs)
+    .reply(status, body)
+}
+
+describe('GithubComponent', () => {
+  afterEach(() => {
+    nock.cleanAll()
+  })
+
+  it('should display repo info', async () => {
+    mockGithubApi(200, { name: 'dify', stars: 1000 })
+    
+    render(<GithubComponent />)
+    
+    await waitFor(() => {
+      expect(screen.getByText('dify')).toBeInTheDocument()
+    })
+  })
+
+  it('should handle API error', async () => {
+    mockGithubApi(500, { message: 'Server error' })
+    
+    render(<GithubComponent />)
+    
+    await waitFor(() => {
+      expect(screen.getByText(/error/i)).toBeInTheDocument()
+    })
+  })
+})
+```
+
+### 6. Context Providers
+
+```typescript
+import { ProviderContext } from '@/context/provider-context'
+import { createMockProviderContextValue, createMockPlan } from '@/__mocks__/provider-context'
+
+describe('Component with Context', () => {
+  it('should render for free plan', () => {
+    const mockContext = createMockPlan('sandbox')
+    
+    render(
+      <ProviderContext.Provider value={mockContext}>
+        <Component />
+      </ProviderContext.Provider>
+    )
+    
+    expect(screen.getByText('Upgrade')).toBeInTheDocument()
+  })
+
+  it('should render for pro plan', () => {
+    const mockContext = createMockPlan('professional')
+    
+    render(
+      <ProviderContext.Provider value={mockContext}>
+        <Component />
+      </ProviderContext.Provider>
+    )
+    
+    expect(screen.queryByText('Upgrade')).not.toBeInTheDocument()
+  })
+})
+```
+
+### 7. React Query
+
+```typescript
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
+
+const createTestQueryClient = () => new QueryClient({
+  defaultOptions: {
+    queries: { retry: false },
+    mutations: { retry: false },
+  },
+})
+
+const renderWithQueryClient = (ui: React.ReactElement) => {
+  const queryClient = createTestQueryClient()
+  return render(
+    <QueryClientProvider client={queryClient}>
+      {ui}
+    </QueryClientProvider>
+  )
+}
+```
+
+## Mock Best Practices
+
+### ✅ DO
+
+1. **Use real base components** - Import from `@/app/components/base/` directly
+1. **Use real project components** - Prefer importing over mocking
+1. **Use real Zustand stores** - Set test state via `store.setState()`
+1. **Reset mocks in `beforeEach`**, not `afterEach`
+1. **Match actual component behavior** in mocks (when mocking is necessary)
+1. **Use factory functions** for complex mock data
+1. **Import actual types** for type safety
+1. **Reset shared mock state** in `beforeEach`
+
+### ❌ DON'T
+
+1. **Don't mock base components** (`Loading`, `Button`, `Tooltip`, etc.)
+1. **Don't mock Zustand store modules** - Use real stores with `setState()`
+1. Don't mock components you can import directly
+1. Don't create overly simplified mocks that miss conditional logic
+1. Don't forget to clean up nock after each test
+1. Don't use `any` types in mocks without necessity
+
+### Mock Decision Tree
+
+```
+Need to use a component in test?
+│
+├─ Is it from @/app/components/base/*?
+│  └─ YES → Import real component, DO NOT mock
+│
+├─ Is it a project component?
+│  └─ YES → Prefer importing real component
+│           Only mock if setup is extremely complex
+│
+├─ Is it an API service (@/service/*)?
+│  └─ YES → Mock it
+│
+├─ Is it a third-party lib with side effects?
+│  └─ YES → Mock it (next/navigation, external SDKs)
+│
+├─ Is it a Zustand store?
+│  └─ YES → DO NOT mock the module!
+│           Use real store + setState() to set test state
+│           (Global mock handles auto-reset)
+│
+└─ Is it i18n?
+   └─ YES → Uses shared mock (auto-loaded). Override only for custom translations
+```
+
+## Zustand Store Testing
+
+### Global Zustand Mock (Auto-loaded)
+
+Zustand is globally mocked in `web/vitest.setup.ts` following the [official Zustand testing guide](https://zustand.docs.pmnd.rs/guides/testing). The mock in `web/__mocks__/zustand.ts` provides:
+
+- Real store behavior with `getState()`, `setState()`, `subscribe()` methods
+- Automatic store reset after each test via `afterEach`
+- Proper test isolation between tests
+
+### ✅ Recommended: Use Real Stores (Official Best Practice)
+
+**DO NOT mock store modules manually.** Import and use the real store, then use `setState()` to set test state:
+
+```typescript
+// ✅ CORRECT: Use real store with setState
+import { useAppStore } from '@/app/components/app/store'
+
+describe('MyComponent', () => {
+  it('should render app details', () => {
+    // Arrange: Set test state via setState
+    useAppStore.setState({
+      appDetail: {
+        id: 'test-app',
+        name: 'Test App',
+        mode: 'chat',
+      },
+    })
+
+    // Act
+    render(<MyComponent />)
+
+    // Assert
+    expect(screen.getByText('Test App')).toBeInTheDocument()
+    // Can also verify store state directly
+    expect(useAppStore.getState().appDetail?.name).toBe('Test App')
+  })
+
+  // No cleanup needed - global mock auto-resets after each test
+})
+```
+
+### ❌ Avoid: Manual Store Module Mocking
+
+Manual mocking conflicts with the global Zustand mock and loses store functionality:
+
+```typescript
+// ❌ WRONG: Don't mock the store module
+vi.mock('@/app/components/app/store', () => ({
+  useStore: (selector) => mockSelector(selector),  // Missing getState, setState!
+}))
+
+// ❌ WRONG: This conflicts with global zustand mock
+vi.mock('@/app/components/workflow/store', () => ({
+  useWorkflowStore: vi.fn(() => mockState),
+}))
+```
+
+**Problems with manual mocking:**
+
+1. Loses `getState()`, `setState()`, `subscribe()` methods
+1. Conflicts with global Zustand mock behavior
+1. Requires manual maintenance of store API
+1. Tests don't reflect actual store behavior
+
+### When Manual Store Mocking is Necessary
+
+In rare cases where the store has complex initialization or side effects, you can mock it, but ensure you provide the full store API:
+
+```typescript
+// If you MUST mock (rare), include full store API
+const mockStore = {
+  appDetail: { id: 'test', name: 'Test' },
+  setAppDetail: vi.fn(),
+}
+
+vi.mock('@/app/components/app/store', () => ({
+  useStore: Object.assign(
+    (selector: (state: typeof mockStore) => unknown) => selector(mockStore),
+    {
+      getState: () => mockStore,
+      setState: vi.fn(),
+      subscribe: vi.fn(),
+    },
+  ),
+}))
+```
+
+### Store Testing Decision Tree
+
+```
+Need to test a component using Zustand store?
+│
+├─ Can you use the real store?
+│  └─ YES → Use real store + setState (RECOMMENDED)
+│           useAppStore.setState({ ... })
+│
+├─ Does the store have complex initialization/side effects?
+│  └─ YES → Consider mocking, but include full API
+│           (getState, setState, subscribe)
+│
+└─ Are you testing the store itself (not a component)?
+   └─ YES → Test store directly with getState/setState
+            const store = useMyStore
+            store.setState({ count: 0 })
+            store.getState().increment()
+            expect(store.getState().count).toBe(1)
+```
+
+### Example: Testing Store Actions
+
+```typescript
+import { useCounterStore } from '@/stores/counter'
+
+describe('Counter Store', () => {
+  it('should increment count', () => {
+    // Initial state (auto-reset by global mock)
+    expect(useCounterStore.getState().count).toBe(0)
+
+    // Call action
+    useCounterStore.getState().increment()
+
+    // Verify state change
+    expect(useCounterStore.getState().count).toBe(1)
+  })
+
+  it('should reset to initial state', () => {
+    // Set some state
+    useCounterStore.setState({ count: 100 })
+    expect(useCounterStore.getState().count).toBe(100)
+
+    // After this test, global mock will reset to initial state
+  })
+})
+```
+
+## Factory Function Pattern
+
+```typescript
+// __mocks__/data-factories.ts
+import type { User, Project } from '@/types'
+
+export const createMockUser = (overrides: Partial<User> = {}): User => ({
+  id: 'user-1',
+  name: 'Test User',
+  email: 'test@example.com',
+  role: 'member',
+  createdAt: new Date().toISOString(),
+  ...overrides,
+})
+
+export const createMockProject = (overrides: Partial<Project> = {}): Project => ({
+  id: 'project-1',
+  name: 'Test Project',
+  description: 'A test project',
+  owner: createMockUser(),
+  members: [],
+  createdAt: new Date().toISOString(),
+  ...overrides,
+})
+
+// Usage in tests
+it('should display project owner', () => {
+  const project = createMockProject({
+    owner: createMockUser({ name: 'John Doe' }),
+  })
+  
+  render(<ProjectCard project={project} />)
+  expect(screen.getByText('John Doe')).toBeInTheDocument()
+})
+```

.claude/skills/frontend-testing/references/workflow.md

@@ -0,0 +1,269 @@
+# Testing Workflow Guide
+
+This guide defines the workflow for generating tests, especially for complex components or directories with multiple files.
+
+## Scope Clarification
+
+This guide addresses **multi-file workflow** (how to process multiple test files). For coverage requirements within a single test file, see `web/testing/testing.md` § Coverage Goals.
+
+| Scope | Rule |
+|-------|------|
+| **Single file** | Complete coverage in one generation (100% function, >95% branch) |
+| **Multi-file directory** | Process one file at a time, verify each before proceeding |
+
+## ⚠️ Critical Rule: Incremental Approach for Multi-File Testing
+
+When testing a **directory with multiple files**, **NEVER generate all test files at once.** Use an incremental, verify-as-you-go approach.
+
+### Why Incremental?
+
+| Batch Approach (❌) | Incremental Approach (✅) |
+|---------------------|---------------------------|
+| Generate 5+ tests at once | Generate 1 test at a time |
+| Run tests only at the end | Run test immediately after each file |
+| Multiple failures compound | Single point of failure, easy to debug |
+| Hard to identify root cause | Clear cause-effect relationship |
+| Mock issues affect many files | Mock issues caught early |
+| Messy git history | Clean, atomic commits possible |
+
+## Single File Workflow
+
+When testing a **single component, hook, or utility**:
+
+```
+1. Read source code completely
+2. Run `pnpm analyze-component <path>` (if available)
+3. Check complexity score and features detected
+4. Write the test file
+5. Run test: `pnpm test <file>.spec.tsx`
+6. Fix any failures
+7. Verify coverage meets goals (100% function, >95% branch)
+```
+
+## Directory/Multi-File Workflow (MUST FOLLOW)
+
+When testing a **directory or multiple files**, follow this strict workflow:
+
+### Step 1: Analyze and Plan
+
+1. **List all files** that need tests in the directory
+1. **Categorize by complexity**:
+   - 🟢 **Simple**: Utility functions, simple hooks, presentational components
+   - 🟡 **Medium**: Components with state, effects, or event handlers
+   - 🔴 **Complex**: Components with API calls, routing, or many dependencies
+1. **Order by dependency**: Test dependencies before dependents
+1. **Create a todo list** to track progress
+
+### Step 2: Determine Processing Order
+
+Process files in this recommended order:
+
+```
+1. Utility functions (simplest, no React)
+2. Custom hooks (isolated logic)
+3. Simple presentational components (few/no props)
+4. Medium complexity components (state, effects)
+5. Complex components (API, routing, many deps)
+6. Container/index components (integration tests - last)
+```
+
+**Rationale**:
+
+- Simpler files help establish mock patterns
+- Hooks used by components should be tested first
+- Integration tests (index files) depend on child components working
+
+### Step 3: Process Each File Incrementally
+
+**For EACH file in the ordered list:**
+
+```
+┌─────────────────────────────────────────────┐
+│  1. Write test file                         │
+│  2. Run: pnpm test <file>.spec.tsx          │
+│  3. If FAIL → Fix immediately, re-run       │
+│  4. If PASS → Mark complete in todo list    │
+│  5. ONLY THEN proceed to next file          │
+└─────────────────────────────────────────────┘
+```
+
+**DO NOT proceed to the next file until the current one passes.**
+
+### Step 4: Final Verification
+
+After all individual tests pass:
+
+```bash
+# Run all tests in the directory together
+pnpm test path/to/directory/
+
+# Check coverage
+pnpm test:coverage path/to/directory/
+```
+
+## Component Complexity Guidelines
+
+Use `pnpm analyze-component <path>` to assess complexity before testing.
+
+### 🔴 Very Complex Components (Complexity > 50)
+
+**Consider refactoring BEFORE testing:**
+
+- Break component into smaller, testable pieces
+- Extract complex logic into custom hooks
+- Separate container and presentational layers
+
+**If testing as-is:**
+
+- Use integration tests for complex workflows
+- Use `test.each()` for data-driven testing
+- Multiple `describe` blocks for organization
+- Consider testing major sections separately
+
+### 🟡 Medium Complexity (Complexity 30-50)
+
+- Group related tests in `describe` blocks
+- Test integration scenarios between internal parts
+- Focus on state transitions and side effects
+- Use helper functions to reduce test complexity
+
+### 🟢 Simple Components (Complexity < 30)
+
+- Standard test structure
+- Focus on props, rendering, and edge cases
+- Usually straightforward to test
+
+### 📏 Large Files (500+ lines)
+
+Regardless of complexity score:
+
+- **Strongly consider refactoring** before testing
+- If testing as-is, test major sections separately
+- Create helper functions for test setup
+- May need multiple test files
+
+## Todo List Format
+
+When testing multiple files, use a todo list like this:
+
+```
+Testing: path/to/directory/
+
+Ordered by complexity (simple → complex):
+
+☐ utils/helper.ts           [utility, simple]
+☐ hooks/use-custom-hook.ts  [hook, simple]
+☐ empty-state.tsx           [component, simple]
+☐ item-card.tsx             [component, medium]
+☐ list.tsx                  [component, complex]
+☐ index.tsx                 [integration]
+
+Progress: 0/6 complete
+```
+
+Update status as you complete each:
+
+- ☐ → ⏳ (in progress)
+- ⏳ → ✅ (complete and verified)
+- ⏳ → ❌ (blocked, needs attention)
+
+## When to Stop and Verify
+
+**Always run tests after:**
+
+- Completing a test file
+- Making changes to fix a failure
+- Modifying shared mocks
+- Updating test utilities or helpers
+
+**Signs you should pause:**
+
+- More than 2 consecutive test failures
+- Mock-related errors appearing
+- Unclear why a test is failing
+- Test passing but coverage unexpectedly low
+
+## Common Pitfalls to Avoid
+
+### ❌ Don't: Generate Everything First
+
+```
+# BAD: Writing all files then testing
+Write component-a.spec.tsx
+Write component-b.spec.tsx  
+Write component-c.spec.tsx
+Write component-d.spec.tsx
+Run pnpm test  ← Multiple failures, hard to debug
+```
+
+### ✅ Do: Verify Each Step
+
+```
+# GOOD: Incremental with verification
+Write component-a.spec.tsx
+Run pnpm test component-a.spec.tsx ✅
+Write component-b.spec.tsx
+Run pnpm test component-b.spec.tsx ✅
+...continue...
+```
+
+### ❌ Don't: Skip Verification for "Simple" Components
+
+Even simple components can have:
+
+- Import errors
+- Missing mock setup
+- Incorrect assumptions about props
+
+**Always verify, regardless of perceived simplicity.**
+
+### ❌ Don't: Continue When Tests Fail
+
+Failing tests compound:
+
+- A mock issue in file A affects files B, C, D
+- Fixing A later requires revisiting all dependent tests
+- Time wasted on debugging cascading failures
+
+**Fix failures immediately before proceeding.**
+
+## Integration with Claude's Todo Feature
+
+When using Claude for multi-file testing:
+
+1. **Ask Claude to create a todo list** before starting
+1. **Request one file at a time** or ensure Claude processes incrementally
+1. **Verify each test passes** before asking for the next
+1. **Mark todos complete** as you progress
+
+Example prompt:
+
+```
+Test all components in `path/to/directory/`.
+First, analyze the directory and create a todo list ordered by complexity.
+Then, process ONE file at a time, waiting for my confirmation that tests pass
+before proceeding to the next.
+```
+
+## Summary Checklist
+
+Before starting multi-file testing:
+
+- [ ] Listed all files needing tests
+- [ ] Ordered by complexity (simple → complex)
+- [ ] Created todo list for tracking
+- [ ] Understand dependencies between files
+
+During testing:
+
+- [ ] Processing ONE file at a time
+- [ ] Running tests after EACH file
+- [ ] Fixing failures BEFORE proceeding
+- [ ] Updating todo list progress
+
+After completion:
+
+- [ ] All individual tests pass
+- [ ] Full directory test run passes
+- [ ] Coverage goals met
+- [ ] Todo list shows all complete

.claude/skills/how-to-write-component

@@ -1 +0,0 @@
-../../.agents/skills/how-to-write-component

.claude/skills/orpc-contract-first/SKILL.md

@@ -0,0 +1,46 @@
+---
+name: orpc-contract-first
+description: Guide for implementing oRPC contract-first API patterns in Dify frontend. Triggers when creating new API contracts, adding service endpoints, integrating TanStack Query with typed contracts, or migrating legacy service calls to oRPC. Use for all API layer work in web/contract and web/service directories.
+---
+
+# oRPC Contract-First Development
+
+## Project Structure
+
+```
+web/contract/
+├── base.ts           # Base contract (inputStructure: 'detailed')
+├── router.ts         # Router composition & type exports
+├── marketplace.ts    # Marketplace contracts
+└── console/          # Console contracts by domain
+    ├── system.ts
+    └── billing.ts
+```
+
+## Workflow
+
+1. **Create contract** in `web/contract/console/{domain}.ts`
+   - Import `base` from `../base` and `type` from `@orpc/contract`
+   - Define route with `path`, `method`, `input`, `output`
+
+2. **Register in router** at `web/contract/router.ts`
+   - Import directly from domain file (no barrel files)
+   - Nest by API prefix: `billing: { invoices, bindPartnerStack }`
+
+3. **Create hooks** in `web/service/use-{domain}.ts`
+   - Use `consoleQuery.{group}.{contract}.queryKey()` for query keys
+   - Use `consoleClient.{group}.{contract}()` for API calls
+
+## Key Rules
+
+- **Input structure**: Always use `{ params, query?, body? }` format
+- **Path params**: Use `{paramName}` in path, match in `params` object
+- **Router nesting**: Group by API prefix (e.g., `/billing/*` → `billing: {}`)
+- **No barrel files**: Import directly from specific files
+- **Types**: Import from `@/types/`, use `type<T>()` helper
+
+## Type Export
+
+```typescript
+export type ConsoleInputs = InferContractRouterInputs<typeof consoleRouterContract>
+```

.claude/skills/skill-creator/SKILL.md

@@ -0,0 +1,355 @@
+---
+name: skill-creator
+description: Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.
+---
+
+# Skill Creator
+
+This skill provides guidance for creating effective skills.
+
+## About Skills
+
+Skills are modular, self-contained packages that extend Claude's capabilities by providing
+specialized knowledge, workflows, and tools. Think of them as "onboarding guides" for specific
+domains or tasks—they transform Claude from a general-purpose agent into a specialized agent
+equipped with procedural knowledge that no model can fully possess.
+
+### What Skills Provide
+
+1. Specialized workflows - Multi-step procedures for specific domains
+2. Tool integrations - Instructions for working with specific file formats or APIs
+3. Domain expertise - Company-specific knowledge, schemas, business logic
+4. Bundled resources - Scripts, references, and assets for complex and repetitive tasks
+
+## Core Principles
+
+### Concise is Key
+
+The context window is a public good. Skills share the context window with everything else Claude needs: system prompt, conversation history, other Skills' metadata, and the actual user request.
+
+**Default assumption: Claude is already very smart.** Only add context Claude doesn't already have. Challenge each piece of information: "Does Claude really need this explanation?" and "Does this paragraph justify its token cost?"
+
+Prefer concise examples over verbose explanations.
+
+### Set Appropriate Degrees of Freedom
+
+Match the level of specificity to the task's fragility and variability:
+
+**High freedom (text-based instructions)**: Use when multiple approaches are valid, decisions depend on context, or heuristics guide the approach.
+
+**Medium freedom (pseudocode or scripts with parameters)**: Use when a preferred pattern exists, some variation is acceptable, or configuration affects behavior.
+
+**Low freedom (specific scripts, few parameters)**: Use when operations are fragile and error-prone, consistency is critical, or a specific sequence must be followed.
+
+Think of Claude as exploring a path: a narrow bridge with cliffs needs specific guardrails (low freedom), while an open field allows many routes (high freedom).
+
+### Anatomy of a Skill
+
+Every skill consists of a required SKILL.md file and optional bundled resources:
+
+```
+skill-name/
+├── SKILL.md (required)
+│   ├── YAML frontmatter metadata (required)
+│   │   ├── name: (required)
+│   │   └── description: (required)
+│   └── Markdown instructions (required)
+└── Bundled Resources (optional)
+    ├── scripts/          - Executable code (Python/Bash/etc.)
+    ├── references/       - Documentation intended to be loaded into context as needed
+    └── assets/           - Files used in output (templates, icons, fonts, etc.)
+```
+
+#### SKILL.md (required)
+
+Every SKILL.md consists of:
+
+- **Frontmatter** (YAML): Contains `name` and `description` fields. These are the only fields that Claude reads to determine when the skill gets used, thus it is very important to be clear and comprehensive in describing what the skill is, and when it should be used.
+- **Body** (Markdown): Instructions and guidance for using the skill. Only loaded AFTER the skill triggers (if at all).
+
+#### Bundled Resources (optional)
+
+##### Scripts (`scripts/`)
+
+Executable code (Python/Bash/etc.) for tasks that require deterministic reliability or are repeatedly rewritten.
+
+- **When to include**: When the same code is being rewritten repeatedly or deterministic reliability is needed
+- **Example**: `scripts/rotate_pdf.py` for PDF rotation tasks
+- **Benefits**: Token efficient, deterministic, may be executed without loading into context
+- **Note**: Scripts may still need to be read by Claude for patching or environment-specific adjustments
+
+##### References (`references/`)
+
+Documentation and reference material intended to be loaded as needed into context to inform Claude's process and thinking.
+
+- **When to include**: For documentation that Claude should reference while working
+- **Examples**: `references/finance.md` for financial schemas, `references/mnda.md` for company NDA template, `references/policies.md` for company policies, `references/api_docs.md` for API specifications
+- **Use cases**: Database schemas, API documentation, domain knowledge, company policies, detailed workflow guides
+- **Benefits**: Keeps SKILL.md lean, loaded only when Claude determines it's needed
+- **Best practice**: If files are large (>10k words), include grep search patterns in SKILL.md
+- **Avoid duplication**: Information should live in either SKILL.md or references files, not both. Prefer references files for detailed information unless it's truly core to the skill—this keeps SKILL.md lean while making information discoverable without hogging the context window. Keep only essential procedural instructions and workflow guidance in SKILL.md; move detailed reference material, schemas, and examples to references files.
+
+##### Assets (`assets/`)
+
+Files not intended to be loaded into context, but rather used within the output Claude produces.
+
+- **When to include**: When the skill needs files that will be used in the final output
+- **Examples**: `assets/logo.png` for brand assets, `assets/slides.pptx` for PowerPoint templates, `assets/frontend-template/` for HTML/React boilerplate, `assets/font.ttf` for typography
+- **Use cases**: Templates, images, icons, boilerplate code, fonts, sample documents that get copied or modified
+- **Benefits**: Separates output resources from documentation, enables Claude to use files without loading them into context
+
+#### What to Not Include in a Skill
+
+A skill should only contain essential files that directly support its functionality. Do NOT create extraneous documentation or auxiliary files, including:
+
+- README.md
+- INSTALLATION_GUIDE.md
+- QUICK_REFERENCE.md
+- CHANGELOG.md
+- etc.
+
+The skill should only contain the information needed for an AI agent to do the job at hand. It should not contain auxilary context about the process that went into creating it, setup and testing procedures, user-facing documentation, etc. Creating additional documentation files just adds clutter and confusion.
+
+### Progressive Disclosure Design Principle
+
+Skills use a three-level loading system to manage context efficiently:
+
+1. **Metadata (name + description)** - Always in context (~100 words)
+2. **SKILL.md body** - When skill triggers (<5k words)
+3. **Bundled resources** - As needed by Claude (Unlimited because scripts can be executed without reading into context window)
+
+#### Progressive Disclosure Patterns
+
+Keep SKILL.md body to the essentials and under 500 lines to minimize context bloat. Split content into separate files when approaching this limit. When splitting out content into other files, it is very important to reference them from SKILL.md and describe clearly when to read them, to ensure the reader of the skill knows they exist and when to use them.
+
+**Key principle:** When a skill supports multiple variations, frameworks, or options, keep only the core workflow and selection guidance in SKILL.md. Move variant-specific details (patterns, examples, configuration) into separate reference files.
+
+**Pattern 1: High-level guide with references**
+
+```markdown
+# PDF Processing
+
+## Quick start
+
+Extract text with pdfplumber:
+[code example]
+
+## Advanced features
+
+- **Form filling**: See [FORMS.md](FORMS.md) for complete guide
+- **API reference**: See [REFERENCE.md](REFERENCE.md) for all methods
+- **Examples**: See [EXAMPLES.md](EXAMPLES.md) for common patterns
+```
+
+Claude loads FORMS.md, REFERENCE.md, or EXAMPLES.md only when needed.
+
+**Pattern 2: Domain-specific organization**
+
+For Skills with multiple domains, organize content by domain to avoid loading irrelevant context:
+
+```
+bigquery-skill/
+├── SKILL.md (overview and navigation)
+└── reference/
+    ├── finance.md (revenue, billing metrics)
+    ├── sales.md (opportunities, pipeline)
+    ├── product.md (API usage, features)
+    └── marketing.md (campaigns, attribution)
+```
+
+When a user asks about sales metrics, Claude only reads sales.md.
+
+Similarly, for skills supporting multiple frameworks or variants, organize by variant:
+
+```
+cloud-deploy/
+├── SKILL.md (workflow + provider selection)
+└── references/
+    ├── aws.md (AWS deployment patterns)
+    ├── gcp.md (GCP deployment patterns)
+    └── azure.md (Azure deployment patterns)
+```
+
+When the user chooses AWS, Claude only reads aws.md.
+
+**Pattern 3: Conditional details**
+
+Show basic content, link to advanced content:
+
+```markdown
+# DOCX Processing
+
+## Creating documents
+
+Use docx-js for new documents. See [DOCX-JS.md](DOCX-JS.md).
+
+## Editing documents
+
+For simple edits, modify the XML directly.
+
+**For tracked changes**: See [REDLINING.md](REDLINING.md)
+**For OOXML details**: See [OOXML.md](OOXML.md)
+```
+
+Claude reads REDLINING.md or OOXML.md only when the user needs those features.
+
+**Important guidelines:**
+
+- **Avoid deeply nested references** - Keep references one level deep from SKILL.md. All reference files should link directly from SKILL.md.
+- **Structure longer reference files** - For files longer than 100 lines, include a table of contents at the top so Claude can see the full scope when previewing.
+
+## Skill Creation Process
+
+Skill creation involves these steps:
+
+1. Understand the skill with concrete examples
+2. Plan reusable skill contents (scripts, references, assets)
+3. Initialize the skill (run init_skill.py)
+4. Edit the skill (implement resources and write SKILL.md)
+5. Package the skill (run package_skill.py)
+6. Iterate based on real usage
+
+Follow these steps in order, skipping only if there is a clear reason why they are not applicable.
+
+### Step 1: Understanding the Skill with Concrete Examples
+
+Skip this step only when the skill's usage patterns are already clearly understood. It remains valuable even when working with an existing skill.
+
+To create an effective skill, clearly understand concrete examples of how the skill will be used. This understanding can come from either direct user examples or generated examples that are validated with user feedback.
+
+For example, when building an image-editor skill, relevant questions include:
+
+- "What functionality should the image-editor skill support? Editing, rotating, anything else?"
+- "Can you give some examples of how this skill would be used?"
+- "I can imagine users asking for things like 'Remove the red-eye from this image' or 'Rotate this image'. Are there other ways you imagine this skill being used?"
+- "What would a user say that should trigger this skill?"
+
+To avoid overwhelming users, avoid asking too many questions in a single message. Start with the most important questions and follow up as needed for better effectiveness.
+
+Conclude this step when there is a clear sense of the functionality the skill should support.
+
+### Step 2: Planning the Reusable Skill Contents
+
+To turn concrete examples into an effective skill, analyze each example by:
+
+1. Considering how to execute on the example from scratch
+2. Identifying what scripts, references, and assets would be helpful when executing these workflows repeatedly
+
+Example: When building a `pdf-editor` skill to handle queries like "Help me rotate this PDF," the analysis shows:
+
+1. Rotating a PDF requires re-writing the same code each time
+2. A `scripts/rotate_pdf.py` script would be helpful to store in the skill
+
+Example: When designing a `frontend-webapp-builder` skill for queries like "Build me a todo app" or "Build me a dashboard to track my steps," the analysis shows:
+
+1. Writing a frontend webapp requires the same boilerplate HTML/React each time
+2. An `assets/hello-world/` template containing the boilerplate HTML/React project files would be helpful to store in the skill
+
+Example: When building a `big-query` skill to handle queries like "How many users have logged in today?" the analysis shows:
+
+1. Querying BigQuery requires re-discovering the table schemas and relationships each time
+2. A `references/schema.md` file documenting the table schemas would be helpful to store in the skill
+
+To establish the skill's contents, analyze each concrete example to create a list of the reusable resources to include: scripts, references, and assets.
+
+### Step 3: Initializing the Skill
+
+At this point, it is time to actually create the skill.
+
+Skip this step only if the skill being developed already exists, and iteration or packaging is needed. In this case, continue to the next step.
+
+When creating a new skill from scratch, always run the `init_skill.py` script. The script conveniently generates a new template skill directory that automatically includes everything a skill requires, making the skill creation process much more efficient and reliable.
+
+Usage:
+
+```bash
+scripts/init_skill.py <skill-name> --path <output-directory>
+```
+
+The script:
+
+- Creates the skill directory at the specified path
+- Generates a SKILL.md template with proper frontmatter and TODO placeholders
+- Creates example resource directories: `scripts/`, `references/`, and `assets/`
+- Adds example files in each directory that can be customized or deleted
+
+After initialization, customize or remove the generated SKILL.md and example files as needed.
+
+### Step 4: Edit the Skill
+
+When editing the (newly-generated or existing) skill, remember that the skill is being created for another instance of Claude to use. Include information that would be beneficial and non-obvious to Claude. Consider what procedural knowledge, domain-specific details, or reusable assets would help another Claude instance execute these tasks more effectively.
+
+#### Learn Proven Design Patterns
+
+Consult these helpful guides based on your skill's needs:
+
+- **Multi-step processes**: See references/workflows.md for sequential workflows and conditional logic
+- **Specific output formats or quality standards**: See references/output-patterns.md for template and example patterns
+
+These files contain established best practices for effective skill design.
+
+#### Start with Reusable Skill Contents
+
+To begin implementation, start with the reusable resources identified above: `scripts/`, `references/`, and `assets/` files. Note that this step may require user input. For example, when implementing a `brand-guidelines` skill, the user may need to provide brand assets or templates to store in `assets/`, or documentation to store in `references/`.
+
+Added scripts must be tested by actually running them to ensure there are no bugs and that the output matches what is expected. If there are many similar scripts, only a representative sample needs to be tested to ensure confidence that they all work while balancing time to completion.
+
+Any example files and directories not needed for the skill should be deleted. The initialization script creates example files in `scripts/`, `references/`, and `assets/` to demonstrate structure, but most skills won't need all of them.
+
+#### Update SKILL.md
+
+**Writing Guidelines:** Always use imperative/infinitive form.
+
+##### Frontmatter
+
+Write the YAML frontmatter with `name` and `description`:
+
+- `name`: The skill name
+- `description`: This is the primary triggering mechanism for your skill, and helps Claude understand when to use the skill.
+  - Include both what the Skill does and specific triggers/contexts for when to use it.
+  - Include all "when to use" information here - Not in the body. The body is only loaded after triggering, so "When to Use This Skill" sections in the body are not helpful to Claude.
+  - Example description for a `docx` skill: "Comprehensive document creation, editing, and analysis with support for tracked changes, comments, formatting preservation, and text extraction. Use when Claude needs to work with professional documents (.docx files) for: (1) Creating new documents, (2) Modifying or editing content, (3) Working with tracked changes, (4) Adding comments, or any other document tasks"
+
+Do not include any other fields in YAML frontmatter.
+
+##### Body
+
+Write instructions for using the skill and its bundled resources.
+
+### Step 5: Packaging a Skill
+
+Once development of the skill is complete, it must be packaged into a distributable .skill file that gets shared with the user. The packaging process automatically validates the skill first to ensure it meets all requirements:
+
+```bash
+scripts/package_skill.py <path/to/skill-folder>
+```
+
+Optional output directory specification:
+
+```bash
+scripts/package_skill.py <path/to/skill-folder> ./dist
+```
+
+The packaging script will:
+
+1. **Validate** the skill automatically, checking:
+
+   - YAML frontmatter format and required fields
+   - Skill naming conventions and directory structure
+   - Description completeness and quality
+   - File organization and resource references
+
+2. **Package** the skill if validation passes, creating a .skill file named after the skill (e.g., `my-skill.skill`) that includes all files and maintains the proper directory structure for distribution. The .skill file is a zip file with a .skill extension.
+
+If validation fails, the script will report the errors and exit without creating a package. Fix any validation errors and run the packaging command again.
+
+### Step 6: Iterate
+
+After testing the skill, users may request improvements. Often this happens right after using the skill, with fresh context of how the skill performed.
+
+**Iteration workflow:**
+
+1. Use the skill on real tasks
+2. Notice struggles or inefficiencies
+3. Identify how SKILL.md or bundled resources should be updated
+4. Implement changes and test again

.claude/skills/skill-creator/references/output-patterns.md

@@ -0,0 +1,86 @@
+# Output Patterns
+
+Use these patterns when skills need to produce consistent, high-quality output.
+
+## Template Pattern
+
+Provide templates for output format. Match the level of strictness to your needs.
+
+**For strict requirements (like API responses or data formats):**
+
+```markdown
+## Report structure
+
+ALWAYS use this exact template structure:
+
+# [Analysis Title]
+
+## Executive summary
+[One-paragraph overview of key findings]
+
+## Key findings
+- Finding 1 with supporting data
+- Finding 2 with supporting data
+- Finding 3 with supporting data
+
+## Recommendations
+1. Specific actionable recommendation
+2. Specific actionable recommendation
+```
+
+**For flexible guidance (when adaptation is useful):**
+
+```markdown
+## Report structure
+
+Here is a sensible default format, but use your best judgment:
+
+# [Analysis Title]
+
+## Executive summary
+[Overview]
+
+## Key findings
+[Adapt sections based on what you discover]
+
+## Recommendations
+[Tailor to the specific context]
+
+Adjust sections as needed for the specific analysis type.
+```
+
+## Examples Pattern
+
+For skills where output quality depends on seeing examples, provide input/output pairs:
+
+```markdown
+## Commit message format
+
+Generate commit messages following these examples:
+
+**Example 1:**
+Input: Added user authentication with JWT tokens
+Output:
+```
+
+feat(auth): implement JWT-based authentication
+
+Add login endpoint and token validation middleware
+
+```
+
+**Example 2:**
+Input: Fixed bug where dates displayed incorrectly in reports
+Output:
+```
+
+fix(reports): correct date formatting in timezone conversion
+
+Use UTC timestamps consistently across report generation
+
+```
+
+Follow this style: type(scope): brief description, then detailed explanation.
+```
+
+Examples help Claude understand the desired style and level of detail more clearly than descriptions alone.

.claude/skills/skill-creator/references/workflows.md

@@ -0,0 +1,28 @@
+# Workflow Patterns
+
+## Sequential Workflows
+
+For complex tasks, break operations into clear, sequential steps. It is often helpful to give Claude an overview of the process towards the beginning of SKILL.md:
+
+```markdown
+Filling a PDF form involves these steps:
+
+1. Analyze the form (run analyze_form.py)
+2. Create field mapping (edit fields.json)
+3. Validate mapping (run validate_fields.py)
+4. Fill the form (run fill_form.py)
+5. Verify output (run verify_output.py)
+```
+
+## Conditional Workflows
+
+For tasks with branching logic, guide Claude through decision points:
+
+```markdown
+1. Determine the modification type:
+   **Creating new content?** → Follow "Creation workflow" below
+   **Editing existing content?** → Follow "Editing workflow" below
+
+2. Creation workflow: [steps]
+3. Editing workflow: [steps]
+```

.claude/skills/skill-creator/scripts/init_skill.py

@@ -0,0 +1,300 @@
+#!/usr/bin/env python3
+"""
+Skill Initializer - Creates a new skill from template
+
+Usage:
+    init_skill.py <skill-name> --path <path>
+
+Examples:
+    init_skill.py my-new-skill --path skills/public
+    init_skill.py my-api-helper --path skills/private
+    init_skill.py custom-skill --path /custom/location
+"""
+
+import sys
+from pathlib import Path
+
+
+SKILL_TEMPLATE = """---
+name: {skill_name}
+description: [TODO: Complete and informative explanation of what the skill does and when to use it. Include WHEN to use this skill - specific scenarios, file types, or tasks that trigger it.]
+---
+
+# {skill_title}
+
+## Overview
+
+[TODO: 1-2 sentences explaining what this skill enables]
+
+## Structuring This Skill
+
+[TODO: Choose the structure that best fits this skill's purpose. Common patterns:
+
+**1. Workflow-Based** (best for sequential processes)
+- Works well when there are clear step-by-step procedures
+- Example: DOCX skill with "Workflow Decision Tree" → "Reading" → "Creating" → "Editing"
+- Structure: ## Overview → ## Workflow Decision Tree → ## Step 1 → ## Step 2...
+
+**2. Task-Based** (best for tool collections)
+- Works well when the skill offers different operations/capabilities
+- Example: PDF skill with "Quick Start" → "Merge PDFs" → "Split PDFs" → "Extract Text"
+- Structure: ## Overview → ## Quick Start → ## Task Category 1 → ## Task Category 2...
+
+**3. Reference/Guidelines** (best for standards or specifications)
+- Works well for brand guidelines, coding standards, or requirements
+- Example: Brand styling with "Brand Guidelines" → "Colors" → "Typography" → "Features"
+- Structure: ## Overview → ## Guidelines → ## Specifications → ## Usage...
+
+**4. Capabilities-Based** (best for integrated systems)
+- Works well when the skill provides multiple interrelated features
+- Example: Product Management with "Core Capabilities" → numbered capability list
+- Structure: ## Overview → ## Core Capabilities → ### 1. Feature → ### 2. Feature...
+
+Patterns can be mixed and matched as needed. Most skills combine patterns (e.g., start with task-based, add workflow for complex operations).
+
+Delete this entire "Structuring This Skill" section when done - it's just guidance.]
+
+## [TODO: Replace with the first main section based on chosen structure]
+
+[TODO: Add content here. See examples in existing skills:
+- Code samples for technical skills
+- Decision trees for complex workflows
+- Concrete examples with realistic user requests
+- References to scripts/templates/references as needed]
+
+## Resources
+
+This skill includes example resource directories that demonstrate how to organize different types of bundled resources:
+
+### scripts/
+Executable code (Python/Bash/etc.) that can be run directly to perform specific operations.
+
+**Examples from other skills:**
+- PDF skill: `fill_fillable_fields.py`, `extract_form_field_info.py` - utilities for PDF manipulation
+- DOCX skill: `document.py`, `utilities.py` - Python modules for document processing
+
+**Appropriate for:** Python scripts, shell scripts, or any executable code that performs automation, data processing, or specific operations.
+
+**Note:** Scripts may be executed without loading into context, but can still be read by Claude for patching or environment adjustments.
+
+### references/
+Documentation and reference material intended to be loaded into context to inform Claude's process and thinking.
+
+**Examples from other skills:**
+- Product management: `communication.md`, `context_building.md` - detailed workflow guides
+- BigQuery: API reference documentation and query examples
+- Finance: Schema documentation, company policies
+
+**Appropriate for:** In-depth documentation, API references, database schemas, comprehensive guides, or any detailed information that Claude should reference while working.
+
+### assets/
+Files not intended to be loaded into context, but rather used within the output Claude produces.
+
+**Examples from other skills:**
+- Brand styling: PowerPoint template files (.pptx), logo files
+- Frontend builder: HTML/React boilerplate project directories
+- Typography: Font files (.ttf, .woff2)
+
+**Appropriate for:** Templates, boilerplate code, document templates, images, icons, fonts, or any files meant to be copied or used in the final output.
+
+---
+
+**Any unneeded directories can be deleted.** Not every skill requires all three types of resources.
+"""
+
+EXAMPLE_SCRIPT = '''#!/usr/bin/env python3
+"""
+Example helper script for {skill_name}
+
+This is a placeholder script that can be executed directly.
+Replace with actual implementation or delete if not needed.
+
+Example real scripts from other skills:
+- pdf/scripts/fill_fillable_fields.py - Fills PDF form fields
+- pdf/scripts/convert_pdf_to_images.py - Converts PDF pages to images
+"""
+
+def main():
+    print("This is an example script for {skill_name}")
+    # TODO: Add actual script logic here
+    # This could be data processing, file conversion, API calls, etc.
+
+if __name__ == "__main__":
+    main()
+'''
+
+EXAMPLE_REFERENCE = """# Reference Documentation for {skill_title}
+
+This is a placeholder for detailed reference documentation.
+Replace with actual reference content or delete if not needed.
+
+Example real reference docs from other skills:
+- product-management/references/communication.md - Comprehensive guide for status updates
+- product-management/references/context_building.md - Deep-dive on gathering context
+- bigquery/references/ - API references and query examples
+
+## When Reference Docs Are Useful
+
+Reference docs are ideal for:
+- Comprehensive API documentation
+- Detailed workflow guides
+- Complex multi-step processes
+- Information too lengthy for main SKILL.md
+- Content that's only needed for specific use cases
+
+## Structure Suggestions
+
+### API Reference Example
+- Overview
+- Authentication
+- Endpoints with examples
+- Error codes
+- Rate limits
+
+### Workflow Guide Example
+- Prerequisites
+- Step-by-step instructions
+- Common patterns
+- Troubleshooting
+- Best practices
+"""
+
+EXAMPLE_ASSET = """# Example Asset File
+
+This placeholder represents where asset files would be stored.
+Replace with actual asset files (templates, images, fonts, etc.) or delete if not needed.
+
+Asset files are NOT intended to be loaded into context, but rather used within
+the output Claude produces.
+
+Example asset files from other skills:
+- Brand guidelines: logo.png, slides_template.pptx
+- Frontend builder: hello-world/ directory with HTML/React boilerplate
+- Typography: custom-font.ttf, font-family.woff2
+- Data: sample_data.csv, test_dataset.json
+
+## Common Asset Types
+
+- Templates: .pptx, .docx, boilerplate directories
+- Images: .png, .jpg, .svg, .gif
+- Fonts: .ttf, .otf, .woff, .woff2
+- Boilerplate code: Project directories, starter files
+- Icons: .ico, .svg
+- Data files: .csv, .json, .xml, .yaml
+
+Note: This is a text placeholder. Actual assets can be any file type.
+"""
+
+
+def title_case_skill_name(skill_name):
+    """Convert hyphenated skill name to Title Case for display."""
+    return " ".join(word.capitalize() for word in skill_name.split("-"))
+
+
+def init_skill(skill_name, path):
+    """
+    Initialize a new skill directory with template SKILL.md.
+
+    Args:
+        skill_name: Name of the skill
+        path: Path where the skill directory should be created
+
+    Returns:
+        Path to created skill directory, or None if error
+    """
+    # Determine skill directory path
+    skill_dir = Path(path).resolve() / skill_name
+
+    # Check if directory already exists
+    if skill_dir.exists():
+        print(f"❌ Error: Skill directory already exists: {skill_dir}")
+        return None
+
+    # Create skill directory
+    try:
+        skill_dir.mkdir(parents=True, exist_ok=False)
+        print(f"✅ Created skill directory: {skill_dir}")
+    except Exception as e:
+        print(f"❌ Error creating directory: {e}")
+        return None
+
+    # Create SKILL.md from template
+    skill_title = title_case_skill_name(skill_name)
+    skill_content = SKILL_TEMPLATE.format(skill_name=skill_name, skill_title=skill_title)
+
+    skill_md_path = skill_dir / "SKILL.md"
+    try:
+        skill_md_path.write_text(skill_content)
+        print("✅ Created SKILL.md")
+    except Exception as e:
+        print(f"❌ Error creating SKILL.md: {e}")
+        return None
+
+    # Create resource directories with example files
+    try:
+        # Create scripts/ directory with example script
+        scripts_dir = skill_dir / "scripts"
+        scripts_dir.mkdir(exist_ok=True)
+        example_script = scripts_dir / "example.py"
+        example_script.write_text(EXAMPLE_SCRIPT.format(skill_name=skill_name))
+        example_script.chmod(0o755)
+        print("✅ Created scripts/example.py")
+
+        # Create references/ directory with example reference doc
+        references_dir = skill_dir / "references"
+        references_dir.mkdir(exist_ok=True)
+        example_reference = references_dir / "api_reference.md"
+        example_reference.write_text(EXAMPLE_REFERENCE.format(skill_title=skill_title))
+        print("✅ Created references/api_reference.md")
+
+        # Create assets/ directory with example asset placeholder
+        assets_dir = skill_dir / "assets"
+        assets_dir.mkdir(exist_ok=True)
+        example_asset = assets_dir / "example_asset.txt"
+        example_asset.write_text(EXAMPLE_ASSET)
+        print("✅ Created assets/example_asset.txt")
+    except Exception as e:
+        print(f"❌ Error creating resource directories: {e}")
+        return None
+
+    # Print next steps
+    print(f"\n✅ Skill '{skill_name}' initialized successfully at {skill_dir}")
+    print("\nNext steps:")
+    print("1. Edit SKILL.md to complete the TODO items and update the description")
+    print("2. Customize or delete the example files in scripts/, references/, and assets/")
+    print("3. Run the validator when ready to check the skill structure")
+
+    return skill_dir
+
+
+def main():
+    if len(sys.argv) < 4 or sys.argv[2] != "--path":
+        print("Usage: init_skill.py <skill-name> --path <path>")
+        print("\nSkill name requirements:")
+        print("  - Hyphen-case identifier (e.g., 'data-analyzer')")
+        print("  - Lowercase letters, digits, and hyphens only")
+        print("  - Max 40 characters")
+        print("  - Must match directory name exactly")
+        print("\nExamples:")
+        print("  init_skill.py my-new-skill --path skills/public")
+        print("  init_skill.py my-api-helper --path skills/private")
+        print("  init_skill.py custom-skill --path /custom/location")
+        sys.exit(1)
+
+    skill_name = sys.argv[1]
+    path = sys.argv[3]
+
+    print(f"🚀 Initializing skill: {skill_name}")
+    print(f"   Location: {path}")
+    print()
+
+    result = init_skill(skill_name, path)
+
+    if result:
+        sys.exit(0)
+    else:
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()

.claude/skills/skill-creator/scripts/package_skill.py

@@ -0,0 +1,110 @@
+#!/usr/bin/env python3
+"""
+Skill Packager - Creates a distributable .skill file of a skill folder
+
+Usage:
+    python utils/package_skill.py <path/to/skill-folder> [output-directory]
+
+Example:
+    python utils/package_skill.py skills/public/my-skill
+    python utils/package_skill.py skills/public/my-skill ./dist
+"""
+
+import sys
+import zipfile
+from pathlib import Path
+from quick_validate import validate_skill
+
+
+def package_skill(skill_path, output_dir=None):
+    """
+    Package a skill folder into a .skill file.
+
+    Args:
+        skill_path: Path to the skill folder
+        output_dir: Optional output directory for the .skill file (defaults to current directory)
+
+    Returns:
+        Path to the created .skill file, or None if error
+    """
+    skill_path = Path(skill_path).resolve()
+
+    # Validate skill folder exists
+    if not skill_path.exists():
+        print(f"❌ Error: Skill folder not found: {skill_path}")
+        return None
+
+    if not skill_path.is_dir():
+        print(f"❌ Error: Path is not a directory: {skill_path}")
+        return None
+
+    # Validate SKILL.md exists
+    skill_md = skill_path / "SKILL.md"
+    if not skill_md.exists():
+        print(f"❌ Error: SKILL.md not found in {skill_path}")
+        return None
+
+    # Run validation before packaging
+    print("🔍 Validating skill...")
+    valid, message = validate_skill(skill_path)
+    if not valid:
+        print(f"❌ Validation failed: {message}")
+        print("   Please fix the validation errors before packaging.")
+        return None
+    print(f"✅ {message}\n")
+
+    # Determine output location
+    skill_name = skill_path.name
+    if output_dir:
+        output_path = Path(output_dir).resolve()
+        output_path.mkdir(parents=True, exist_ok=True)
+    else:
+        output_path = Path.cwd()
+
+    skill_filename = output_path / f"{skill_name}.skill"
+
+    # Create the .skill file (zip format)
+    try:
+        with zipfile.ZipFile(skill_filename, "w", zipfile.ZIP_DEFLATED) as zipf:
+            # Walk through the skill directory
+            for file_path in skill_path.rglob("*"):
+                if file_path.is_file():
+                    # Calculate the relative path within the zip
+                    arcname = file_path.relative_to(skill_path.parent)
+                    zipf.write(file_path, arcname)
+                    print(f"  Added: {arcname}")
+
+        print(f"\n✅ Successfully packaged skill to: {skill_filename}")
+        return skill_filename
+
+    except Exception as e:
+        print(f"❌ Error creating .skill file: {e}")
+        return None
+
+
+def main():
+    if len(sys.argv) < 2:
+        print("Usage: python utils/package_skill.py <path/to/skill-folder> [output-directory]")
+        print("\nExample:")
+        print("  python utils/package_skill.py skills/public/my-skill")
+        print("  python utils/package_skill.py skills/public/my-skill ./dist")
+        sys.exit(1)
+
+    skill_path = sys.argv[1]
+    output_dir = sys.argv[2] if len(sys.argv) > 2 else None
+
+    print(f"📦 Packaging skill: {skill_path}")
+    if output_dir:
+        print(f"   Output directory: {output_dir}")
+    print()
+
+    result = package_skill(skill_path, output_dir)
+
+    if result:
+        sys.exit(0)
+    else:
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()

.claude/skills/skill-creator/scripts/quick_validate.py

@@ -0,0 +1,97 @@
+#!/usr/bin/env python3
+"""
+Quick validation script for skills - minimal version
+"""
+
+import sys
+import os
+import re
+import yaml
+from pathlib import Path
+
+
+def validate_skill(skill_path):
+    """Basic validation of a skill"""
+    skill_path = Path(skill_path)
+
+    # Check SKILL.md exists
+    skill_md = skill_path / "SKILL.md"
+    if not skill_md.exists():
+        return False, "SKILL.md not found"
+
+    # Read and validate frontmatter
+    content = skill_md.read_text()
+    if not content.startswith("---"):
+        return False, "No YAML frontmatter found"
+
+    # Extract frontmatter
+    match = re.match(r"^---\n(.*?)\n---", content, re.DOTALL)
+    if not match:
+        return False, "Invalid frontmatter format"
+
+    frontmatter_text = match.group(1)
+
+    # Parse YAML frontmatter
+    try:
+        frontmatter = yaml.safe_load(frontmatter_text)
+        if not isinstance(frontmatter, dict):
+            return False, "Frontmatter must be a YAML dictionary"
+    except yaml.YAMLError as e:
+        return False, f"Invalid YAML in frontmatter: {e}"
+
+    # Define allowed properties
+    ALLOWED_PROPERTIES = {"name", "description", "license", "allowed-tools", "metadata"}
+
+    # Check for unexpected properties (excluding nested keys under metadata)
+    unexpected_keys = set(frontmatter.keys()) - ALLOWED_PROPERTIES
+    if unexpected_keys:
+        return False, (
+            f"Unexpected key(s) in SKILL.md frontmatter: {', '.join(sorted(unexpected_keys))}. "
+            f"Allowed properties are: {', '.join(sorted(ALLOWED_PROPERTIES))}"
+        )
+
+    # Check required fields
+    if "name" not in frontmatter:
+        return False, "Missing 'name' in frontmatter"
+    if "description" not in frontmatter:
+        return False, "Missing 'description' in frontmatter"
+
+    # Extract name for validation
+    name = frontmatter.get("name", "")
+    if not isinstance(name, str):
+        return False, f"Name must be a string, got {type(name).__name__}"
+    name = name.strip()
+    if name:
+        # Check naming convention (hyphen-case: lowercase with hyphens)
+        if not re.match(r"^[a-z0-9-]+$", name):
+            return False, f"Name '{name}' should be hyphen-case (lowercase letters, digits, and hyphens only)"
+        if name.startswith("-") or name.endswith("-") or "--" in name:
+            return False, f"Name '{name}' cannot start/end with hyphen or contain consecutive hyphens"
+        # Check name length (max 64 characters per spec)
+        if len(name) > 64:
+            return False, f"Name is too long ({len(name)} characters). Maximum is 64 characters."
+
+    # Extract and validate description
+    description = frontmatter.get("description", "")
+    if not isinstance(description, str):
+        return False, f"Description must be a string, got {type(description).__name__}"
+    description = description.strip()
+    if description:
+        # Check for angle brackets
+        if "<" in description or ">" in description:
+            return False, "Description cannot contain angle brackets (< or >)"
+        # Check description length (max 1024 characters per spec)
+        if len(description) > 1024:
+            return False, f"Description is too long ({len(description)} characters). Maximum is 1024 characters."
+
+    return True, "Skill is valid!"
+
+
+if __name__ == "__main__":
+    if len(sys.argv) != 2:
+        print("Usage: python quick_validate.py <skill_directory>")
+        sys.exit(1)
+
+    valid, message = validate_skill(sys.argv[1])
+    print(message)
+    sys.exit(0 if valid else 1)

.claude/skills/vercel-react-best-practices/SKILL.md

@@ -0,0 +1,125 @@
+---
+name: vercel-react-best-practices
+description: React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.
+license: MIT
+metadata:
+  author: vercel
+  version: "1.0.0"
+---
+
+# Vercel React Best Practices
+
+Comprehensive performance optimization guide for React and Next.js applications, maintained by Vercel. Contains 45 rules across 8 categories, prioritized by impact to guide automated refactoring and code generation.
+
+## When to Apply
+
+Reference these guidelines when:
+- Writing new React components or Next.js pages
+- Implementing data fetching (client or server-side)
+- Reviewing code for performance issues
+- Refactoring existing React/Next.js code
+- Optimizing bundle size or load times
+
+## Rule Categories by Priority
+
+| Priority | Category | Impact | Prefix |
+|----------|----------|--------|--------|
+| 1 | Eliminating Waterfalls | CRITICAL | `async-` |
+| 2 | Bundle Size Optimization | CRITICAL | `bundle-` |
+| 3 | Server-Side Performance | HIGH | `server-` |
+| 4 | Client-Side Data Fetching | MEDIUM-HIGH | `client-` |
+| 5 | Re-render Optimization | MEDIUM | `rerender-` |
+| 6 | Rendering Performance | MEDIUM | `rendering-` |
+| 7 | JavaScript Performance | LOW-MEDIUM | `js-` |
+| 8 | Advanced Patterns | LOW | `advanced-` |
+
+## Quick Reference
+
+### 1. Eliminating Waterfalls (CRITICAL)
+
+- `async-defer-await` - Move await into branches where actually used
+- `async-parallel` - Use Promise.all() for independent operations
+- `async-dependencies` - Use better-all for partial dependencies
+- `async-api-routes` - Start promises early, await late in API routes
+- `async-suspense-boundaries` - Use Suspense to stream content
+
+### 2. Bundle Size Optimization (CRITICAL)
+
+- `bundle-barrel-imports` - Import directly, avoid barrel files
+- `bundle-dynamic-imports` - Use next/dynamic for heavy components
+- `bundle-defer-third-party` - Load analytics/logging after hydration
+- `bundle-conditional` - Load modules only when feature is activated
+- `bundle-preload` - Preload on hover/focus for perceived speed
+
+### 3. Server-Side Performance (HIGH)
+
+- `server-cache-react` - Use React.cache() for per-request deduplication
+- `server-cache-lru` - Use LRU cache for cross-request caching
+- `server-serialization` - Minimize data passed to client components
+- `server-parallel-fetching` - Restructure components to parallelize fetches
+- `server-after-nonblocking` - Use after() for non-blocking operations
+
+### 4. Client-Side Data Fetching (MEDIUM-HIGH)
+
+- `client-swr-dedup` - Use SWR for automatic request deduplication
+- `client-event-listeners` - Deduplicate global event listeners
+
+### 5. Re-render Optimization (MEDIUM)
+
+- `rerender-defer-reads` - Don't subscribe to state only used in callbacks
+- `rerender-memo` - Extract expensive work into memoized components
+- `rerender-dependencies` - Use primitive dependencies in effects
+- `rerender-derived-state` - Subscribe to derived booleans, not raw values
+- `rerender-functional-setstate` - Use functional setState for stable callbacks
+- `rerender-lazy-state-init` - Pass function to useState for expensive values
+- `rerender-transitions` - Use startTransition for non-urgent updates
+
+### 6. Rendering Performance (MEDIUM)
+
+- `rendering-animate-svg-wrapper` - Animate div wrapper, not SVG element
+- `rendering-content-visibility` - Use content-visibility for long lists
+- `rendering-hoist-jsx` - Extract static JSX outside components
+- `rendering-svg-precision` - Reduce SVG coordinate precision
+- `rendering-hydration-no-flicker` - Use inline script for client-only data
+- `rendering-activity` - Use Activity component for show/hide
+- `rendering-conditional-render` - Use ternary, not && for conditionals
+
+### 7. JavaScript Performance (LOW-MEDIUM)
+
+- `js-batch-dom-css` - Group CSS changes via classes or cssText
+- `js-index-maps` - Build Map for repeated lookups
+- `js-cache-property-access` - Cache object properties in loops
+- `js-cache-function-results` - Cache function results in module-level Map
+- `js-cache-storage` - Cache localStorage/sessionStorage reads
+- `js-combine-iterations` - Combine multiple filter/map into one loop
+- `js-length-check-first` - Check array length before expensive comparison
+- `js-early-exit` - Return early from functions
+- `js-hoist-regexp` - Hoist RegExp creation outside loops
+- `js-min-max-loop` - Use loop for min/max instead of sort
+- `js-set-map-lookups` - Use Set/Map for O(1) lookups
+- `js-tosorted-immutable` - Use toSorted() for immutability
+
+### 8. Advanced Patterns (LOW)
+
+- `advanced-event-handler-refs` - Store event handlers in refs
+- `advanced-use-latest` - useLatest for stable callback refs
+
+## How to Use
+
+Read individual rule files for detailed explanations and code examples:
+
+```
+rules/async-parallel.md
+rules/bundle-barrel-imports.md
+rules/_sections.md
+```
+
+Each rule file contains:
+- Brief explanation of why it matters
+- Incorrect code example with explanation
+- Correct code example with explanation
+- Additional context and references
+
+## Full Compiled Document
+
+For the complete guide with all rules expanded: `AGENTS.md`

.claude/skills/vercel-react-best-practices/rules/advanced-event-handler-refs.md

@@ -0,0 +1,55 @@
+---
+title: Store Event Handlers in Refs
+impact: LOW
+impactDescription: stable subscriptions
+tags: advanced, hooks, refs, event-handlers, optimization
+---
+
+## Store Event Handlers in Refs
+
+Store callbacks in refs when used in effects that shouldn't re-subscribe on callback changes.
+
+**Incorrect (re-subscribes on every render):**
+
+```tsx
+function useWindowEvent(event: string, handler: (e) => void) {
+  useEffect(() => {
+    window.addEventListener(event, handler)
+    return () => window.removeEventListener(event, handler)
+  }, [event, handler])
+}
+```
+
+**Correct (stable subscription):**
+
+```tsx
+function useWindowEvent(event: string, handler: (e) => void) {
+  const handlerRef = useRef(handler)
+  useEffect(() => {
+    handlerRef.current = handler
+  }, [handler])
+
+  useEffect(() => {
+    const listener = (e) => handlerRef.current(e)
+    window.addEventListener(event, listener)
+    return () => window.removeEventListener(event, listener)
+  }, [event])
+}
+```
+
+**Alternative: use `useEffectEvent` if you're on latest React:**
+
+```tsx
+import { useEffectEvent } from 'react'
+
+function useWindowEvent(event: string, handler: (e) => void) {
+  const onEvent = useEffectEvent(handler)
+
+  useEffect(() => {
+    window.addEventListener(event, onEvent)
+    return () => window.removeEventListener(event, onEvent)
+  }, [event])
+}
+```
+
+`useEffectEvent` provides a cleaner API for the same pattern: it creates a stable function reference that always calls the latest version of the handler.

.claude/skills/vercel-react-best-practices/rules/advanced-use-latest.md

@@ -0,0 +1,49 @@
+---
+title: useLatest for Stable Callback Refs
+impact: LOW
+impactDescription: prevents effect re-runs
+tags: advanced, hooks, useLatest, refs, optimization
+---
+
+## useLatest for Stable Callback Refs
+
+Access latest values in callbacks without adding them to dependency arrays. Prevents effect re-runs while avoiding stale closures.
+
+**Implementation:**
+
+```typescript
+function useLatest<T>(value: T) {
+  const ref = useRef(value)
+  useLayoutEffect(() => {
+    ref.current = value
+  }, [value])
+  return ref
+}
+```
+
+**Incorrect (effect re-runs on every callback change):**
+
+```tsx
+function SearchInput({ onSearch }: { onSearch: (q: string) => void }) {
+  const [query, setQuery] = useState('')
+
+  useEffect(() => {
+    const timeout = setTimeout(() => onSearch(query), 300)
+    return () => clearTimeout(timeout)
+  }, [query, onSearch])
+}
+```
+
+**Correct (stable effect, fresh callback):**
+
+```tsx
+function SearchInput({ onSearch }: { onSearch: (q: string) => void }) {
+  const [query, setQuery] = useState('')
+  const onSearchRef = useLatest(onSearch)
+
+  useEffect(() => {
+    const timeout = setTimeout(() => onSearchRef.current(query), 300)
+    return () => clearTimeout(timeout)
+  }, [query])
+}
+```

.claude/skills/vercel-react-best-practices/rules/async-api-routes.md

@@ -0,0 +1,38 @@
+---
+title: Prevent Waterfall Chains in API Routes
+impact: CRITICAL
+impactDescription: 2-10× improvement
+tags: api-routes, server-actions, waterfalls, parallelization
+---
+
+## Prevent Waterfall Chains in API Routes
+
+In API routes and Server Actions, start independent operations immediately, even if you don't await them yet.
+
+**Incorrect (config waits for auth, data waits for both):**
+
+```typescript
+export async function GET(request: Request) {
+  const session = await auth()
+  const config = await fetchConfig()
+  const data = await fetchData(session.user.id)
+  return Response.json({ data, config })
+}
+```
+
+**Correct (auth and config start immediately):**
+
+```typescript
+export async function GET(request: Request) {
+  const sessionPromise = auth()
+  const configPromise = fetchConfig()
+  const session = await sessionPromise
+  const [config, data] = await Promise.all([
+    configPromise,
+    fetchData(session.user.id)
+  ])
+  return Response.json({ data, config })
+}
+```
+
+For operations with more complex dependency chains, use `better-all` to automatically maximize parallelism (see Dependency-Based Parallelization).

.claude/skills/vercel-react-best-practices/rules/async-defer-await.md

@@ -0,0 +1,80 @@
+---
+title: Defer Await Until Needed
+impact: HIGH
+impactDescription: avoids blocking unused code paths
+tags: async, await, conditional, optimization
+---
+
+## Defer Await Until Needed
+
+Move `await` operations into the branches where they're actually used to avoid blocking code paths that don't need them.
+
+**Incorrect (blocks both branches):**
+
+```typescript
+async function handleRequest(userId: string, skipProcessing: boolean) {
+  const userData = await fetchUserData(userId)
+  
+  if (skipProcessing) {
+    // Returns immediately but still waited for userData
+    return { skipped: true }
+  }
+  
+  // Only this branch uses userData
+  return processUserData(userData)
+}
+```
+
+**Correct (only blocks when needed):**
+
+```typescript
+async function handleRequest(userId: string, skipProcessing: boolean) {
+  if (skipProcessing) {
+    // Returns immediately without waiting
+    return { skipped: true }
+  }
+  
+  // Fetch only when needed
+  const userData = await fetchUserData(userId)
+  return processUserData(userData)
+}
+```
+
+**Another example (early return optimization):**
+
+```typescript
+// Incorrect: always fetches permissions
+async function updateResource(resourceId: string, userId: string) {
+  const permissions = await fetchPermissions(userId)
+  const resource = await getResource(resourceId)
+  
+  if (!resource) {
+    return { error: 'Not found' }
+  }
+  
+  if (!permissions.canEdit) {
+    return { error: 'Forbidden' }
+  }
+  
+  return await updateResourceData(resource, permissions)
+}
+
+// Correct: fetches only when needed
+async function updateResource(resourceId: string, userId: string) {
+  const resource = await getResource(resourceId)
+  
+  if (!resource) {
+    return { error: 'Not found' }
+  }
+  
+  const permissions = await fetchPermissions(userId)
+  
+  if (!permissions.canEdit) {
+    return { error: 'Forbidden' }
+  }
+  
+  return await updateResourceData(resource, permissions)
+}
+```
+
+This optimization is especially valuable when the skipped branch is frequently taken, or when the deferred operation is expensive.

.claude/skills/vercel-react-best-practices/rules/async-dependencies.md

@@ -0,0 +1,36 @@
+---
+title: Dependency-Based Parallelization
+impact: CRITICAL
+impactDescription: 2-10× improvement
+tags: async, parallelization, dependencies, better-all
+---
+
+## Dependency-Based Parallelization
+
+For operations with partial dependencies, use `better-all` to maximize parallelism. It automatically starts each task at the earliest possible moment.
+
+**Incorrect (profile waits for config unnecessarily):**
+
+```typescript
+const [user, config] = await Promise.all([
+  fetchUser(),
+  fetchConfig()
+])
+const profile = await fetchProfile(user.id)
+```
+
+**Correct (config and profile run in parallel):**
+
+```typescript
+import { all } from 'better-all'
+
+const { user, config, profile } = await all({
+  async user() { return fetchUser() },
+  async config() { return fetchConfig() },
+  async profile() {
+    return fetchProfile((await this.$.user).id)
+  }
+})
+```
+
+Reference: [https://github.com/shuding/better-all](https://github.com/shuding/better-all)

.claude/skills/vercel-react-best-practices/rules/async-parallel.md

@@ -0,0 +1,28 @@
+---
+title: Promise.all() for Independent Operations
+impact: CRITICAL
+impactDescription: 2-10× improvement
+tags: async, parallelization, promises, waterfalls
+---
+
+## Promise.all() for Independent Operations
+
+When async operations have no interdependencies, execute them concurrently using `Promise.all()`.
+
+**Incorrect (sequential execution, 3 round trips):**
+
+```typescript
+const user = await fetchUser()
+const posts = await fetchPosts()
+const comments = await fetchComments()
+```
+
+**Correct (parallel execution, 1 round trip):**
+
+```typescript
+const [user, posts, comments] = await Promise.all([
+  fetchUser(),
+  fetchPosts(),
+  fetchComments()
+])
+```

.claude/skills/vercel-react-best-practices/rules/async-suspense-boundaries.md

@@ -0,0 +1,99 @@
+---
+title: Strategic Suspense Boundaries
+impact: HIGH
+impactDescription: faster initial paint
+tags: async, suspense, streaming, layout-shift
+---
+
+## Strategic Suspense Boundaries
+
+Instead of awaiting data in async components before returning JSX, use Suspense boundaries to show the wrapper UI faster while data loads.
+
+**Incorrect (wrapper blocked by data fetching):**
+
+```tsx
+async function Page() {
+  const data = await fetchData() // Blocks entire page
+  
+  return (
+    <div>
+      <div>Sidebar</div>
+      <div>Header</div>
+      <div>
+        <DataDisplay data={data} />
+      </div>
+      <div>Footer</div>
+    </div>
+  )
+}
+```
+
+The entire layout waits for data even though only the middle section needs it.
+
+**Correct (wrapper shows immediately, data streams in):**
+
+```tsx
+function Page() {
+  return (
+    <div>
+      <div>Sidebar</div>
+      <div>Header</div>
+      <div>
+        <Suspense fallback={<Skeleton />}>
+          <DataDisplay />
+        </Suspense>
+      </div>
+      <div>Footer</div>
+    </div>
+  )
+}
+
+async function DataDisplay() {
+  const data = await fetchData() // Only blocks this component
+  return <div>{data.content}</div>
+}
+```
+
+Sidebar, Header, and Footer render immediately. Only DataDisplay waits for data.
+
+**Alternative (share promise across components):**
+
+```tsx
+function Page() {
+  // Start fetch immediately, but don't await
+  const dataPromise = fetchData()
+  
+  return (
+    <div>
+      <div>Sidebar</div>
+      <div>Header</div>
+      <Suspense fallback={<Skeleton />}>
+        <DataDisplay dataPromise={dataPromise} />
+        <DataSummary dataPromise={dataPromise} />
+      </Suspense>
+      <div>Footer</div>
+    </div>
+  )
+}
+
+function DataDisplay({ dataPromise }: { dataPromise: Promise<Data> }) {
+  const data = use(dataPromise) // Unwraps the promise
+  return <div>{data.content}</div>
+}
+
+function DataSummary({ dataPromise }: { dataPromise: Promise<Data> }) {
+  const data = use(dataPromise) // Reuses the same promise
+  return <div>{data.summary}</div>
+}
+```
+
+Both components share the same promise, so only one fetch occurs. Layout renders immediately while both components wait together.
+
+**When NOT to use this pattern:**
+
+- Critical data needed for layout decisions (affects positioning)
+- SEO-critical content above the fold
+- Small, fast queries where suspense overhead isn't worth it
+- When you want to avoid layout shift (loading → content jump)
+
+**Trade-off:** Faster initial paint vs potential layout shift. Choose based on your UX priorities.

.claude/skills/vercel-react-best-practices/rules/bundle-barrel-imports.md

@@ -0,0 +1,59 @@
+---
+title: Avoid Barrel File Imports
+impact: CRITICAL
+impactDescription: 200-800ms import cost, slow builds
+tags: bundle, imports, tree-shaking, barrel-files, performance
+---
+
+## Avoid Barrel File Imports
+
+Import directly from source files instead of barrel files to avoid loading thousands of unused modules. **Barrel files** are entry points that re-export multiple modules (e.g., `index.js` that does `export * from './module'`).
+
+Popular icon and component libraries can have **up to 10,000 re-exports** in their entry file. For many React packages, **it takes 200-800ms just to import them**, affecting both development speed and production cold starts.
+
+**Why tree-shaking doesn't help:** When a library is marked as external (not bundled), the bundler can't optimize it. If you bundle it to enable tree-shaking, builds become substantially slower analyzing the entire module graph.
+
+**Incorrect (imports entire library):**
+
+```tsx
+import { Check, X, Menu } from 'lucide-react'
+// Loads 1,583 modules, takes ~2.8s extra in dev
+// Runtime cost: 200-800ms on every cold start
+
+import { Button, TextField } from '@mui/material'
+// Loads 2,225 modules, takes ~4.2s extra in dev
+```
+
+**Correct (imports only what you need):**
+
+```tsx
+import Check from 'lucide-react/dist/esm/icons/check'
+import X from 'lucide-react/dist/esm/icons/x'
+import Menu from 'lucide-react/dist/esm/icons/menu'
+// Loads only 3 modules (~2KB vs ~1MB)
+
+import Button from '@mui/material/Button'
+import TextField from '@mui/material/TextField'
+// Loads only what you use
+```
+
+**Alternative (Next.js 13.5+):**
+
+```js
+// next.config.js - use optimizePackageImports
+module.exports = {
+  experimental: {
+    optimizePackageImports: ['lucide-react', '@mui/material']
+  }
+}
+
+// Then you can keep the ergonomic barrel imports:
+import { Check, X, Menu } from 'lucide-react'
+// Automatically transformed to direct imports at build time
+```
+
+Direct imports provide 15-70% faster dev boot, 28% faster builds, 40% faster cold starts, and significantly faster HMR.
+
+Libraries commonly affected: `lucide-react`, `@mui/material`, `@mui/icons-material`, `@tabler/icons-react`, `react-icons`, `@headlessui/react`, `@radix-ui/react-*`, `lodash`, `ramda`, `date-fns`, `rxjs`, `react-use`.
+
+Reference: [How we optimized package imports in Next.js](https://vercel.com/blog/how-we-optimized-package-imports-in-next-js)

.claude/skills/vercel-react-best-practices/rules/bundle-conditional.md

@@ -0,0 +1,31 @@
+---
+title: Conditional Module Loading
+impact: HIGH
+impactDescription: loads large data only when needed
+tags: bundle, conditional-loading, lazy-loading
+---
+
+## Conditional Module Loading
+
+Load large data or modules only when a feature is activated.
+
+**Example (lazy-load animation frames):**
+
+```tsx
+function AnimationPlayer({ enabled, setEnabled }: { enabled: boolean; setEnabled: React.Dispatch<React.SetStateAction<boolean>> }) {
+  const [frames, setFrames] = useState<Frame[] | null>(null)
+
+  useEffect(() => {
+    if (enabled && !frames && typeof window !== 'undefined') {
+      import('./animation-frames.js')
+        .then(mod => setFrames(mod.frames))
+        .catch(() => setEnabled(false))
+    }
+  }, [enabled, frames, setEnabled])
+
+  if (!frames) return <Skeleton />
+  return <Canvas frames={frames} />
+}
+```
+
+The `typeof window !== 'undefined'` check prevents bundling this module for SSR, optimizing server bundle size and build speed.

.claude/skills/vercel-react-best-practices/rules/bundle-defer-third-party.md

@@ -0,0 +1,49 @@
+---
+title: Defer Non-Critical Third-Party Libraries
+impact: MEDIUM
+impactDescription: loads after hydration
+tags: bundle, third-party, analytics, defer
+---
+
+## Defer Non-Critical Third-Party Libraries
+
+Analytics, logging, and error tracking don't block user interaction. Load them after hydration.
+
+**Incorrect (blocks initial bundle):**
+
+```tsx
+import { Analytics } from '@vercel/analytics/react'
+
+export default function RootLayout({ children }) {
+  return (
+    <html>
+      <body>
+        {children}
+        <Analytics />
+      </body>
+    </html>
+  )
+}
+```
+
+**Correct (loads after hydration):**
+
+```tsx
+import dynamic from 'next/dynamic'
+
+const Analytics = dynamic(
+  () => import('@vercel/analytics/react').then(m => m.Analytics),
+  { ssr: false }
+)
+
+export default function RootLayout({ children }) {
+  return (
+    <html>
+      <body>
+        {children}
+        <Analytics />
+      </body>
+    </html>
+  )
+}
+```

.claude/skills/vercel-react-best-practices/rules/bundle-dynamic-imports.md

@@ -0,0 +1,35 @@
+---
+title: Dynamic Imports for Heavy Components
+impact: CRITICAL
+impactDescription: directly affects TTI and LCP
+tags: bundle, dynamic-import, code-splitting, next-dynamic
+---
+
+## Dynamic Imports for Heavy Components
+
+Use `next/dynamic` to lazy-load large components not needed on initial render.
+
+**Incorrect (Monaco bundles with main chunk ~300KB):**
+
+```tsx
+import { MonacoEditor } from './monaco-editor'
+
+function CodePanel({ code }: { code: string }) {
+  return <MonacoEditor value={code} />
+}
+```
+
+**Correct (Monaco loads on demand):**
+
+```tsx
+import dynamic from 'next/dynamic'
+
+const MonacoEditor = dynamic(
+  () => import('./monaco-editor').then(m => m.MonacoEditor),
+  { ssr: false }
+)
+
+function CodePanel({ code }: { code: string }) {
+  return <MonacoEditor value={code} />
+}
+```

.claude/skills/vercel-react-best-practices/rules/bundle-preload.md

@@ -0,0 +1,50 @@
+---
+title: Preload Based on User Intent
+impact: MEDIUM
+impactDescription: reduces perceived latency
+tags: bundle, preload, user-intent, hover
+---
+
+## Preload Based on User Intent
+
+Preload heavy bundles before they're needed to reduce perceived latency.
+
+**Example (preload on hover/focus):**
+
+```tsx
+function EditorButton({ onClick }: { onClick: () => void }) {
+  const preload = () => {
+    if (typeof window !== 'undefined') {
+      void import('./monaco-editor')
+    }
+  }
+
+  return (
+    <button
+      onMouseEnter={preload}
+      onFocus={preload}
+      onClick={onClick}
+    >
+      Open Editor
+    </button>
+  )
+}
+```
+
+**Example (preload when feature flag is enabled):**
+
+```tsx
+function FlagsProvider({ children, flags }: Props) {
+  useEffect(() => {
+    if (flags.editorEnabled && typeof window !== 'undefined') {
+      void import('./monaco-editor').then(mod => mod.init())
+    }
+  }, [flags.editorEnabled])
+
+  return <FlagsContext.Provider value={flags}>
+    {children}
+  </FlagsContext.Provider>
+}
+```
+
+The `typeof window !== 'undefined'` check prevents bundling preloaded modules for SSR, optimizing server bundle size and build speed.

.claude/skills/vercel-react-best-practices/rules/client-event-listeners.md

@@ -0,0 +1,74 @@
+---
+title: Deduplicate Global Event Listeners
+impact: LOW
+impactDescription: single listener for N components
+tags: client, swr, event-listeners, subscription
+---
+
+## Deduplicate Global Event Listeners
+
+Use `useSWRSubscription()` to share global event listeners across component instances.
+
+**Incorrect (N instances = N listeners):**
+
+```tsx
+function useKeyboardShortcut(key: string, callback: () => void) {
+  useEffect(() => {
+    const handler = (e: KeyboardEvent) => {
+      if (e.metaKey && e.key === key) {
+        callback()
+      }
+    }
+    window.addEventListener('keydown', handler)
+    return () => window.removeEventListener('keydown', handler)
+  }, [key, callback])
+}
+```
+
+When using the `useKeyboardShortcut` hook multiple times, each instance will register a new listener.
+
+**Correct (N instances = 1 listener):**
+
+```tsx
+import useSWRSubscription from 'swr/subscription'
+
+// Module-level Map to track callbacks per key
+const keyCallbacks = new Map<string, Set<() => void>>()
+
+function useKeyboardShortcut(key: string, callback: () => void) {
+  // Register this callback in the Map
+  useEffect(() => {
+    if (!keyCallbacks.has(key)) {
+      keyCallbacks.set(key, new Set())
+    }
+    keyCallbacks.get(key)!.add(callback)
+
+    return () => {
+      const set = keyCallbacks.get(key)
+      if (set) {
+        set.delete(callback)
+        if (set.size === 0) {
+          keyCallbacks.delete(key)
+        }
+      }
+    }
+  }, [key, callback])
+
+  useSWRSubscription('global-keydown', () => {
+    const handler = (e: KeyboardEvent) => {
+      if (e.metaKey && keyCallbacks.has(e.key)) {
+        keyCallbacks.get(e.key)!.forEach(cb => cb())
+      }
+    }
+    window.addEventListener('keydown', handler)
+    return () => window.removeEventListener('keydown', handler)
+  })
+}
+
+function Profile() {
+  // Multiple shortcuts will share the same listener
+  useKeyboardShortcut('p', () => { /* ... */ }) 
+  useKeyboardShortcut('k', () => { /* ... */ })
+  // ...
+}
+```

.claude/skills/vercel-react-best-practices/rules/client-localstorage-schema.md

@@ -0,0 +1,71 @@
+---
+title: Version and Minimize localStorage Data
+impact: MEDIUM
+impactDescription: prevents schema conflicts, reduces storage size
+tags: client, localStorage, storage, versioning, data-minimization
+---
+
+## Version and Minimize localStorage Data
+
+Add version prefix to keys and store only needed fields. Prevents schema conflicts and accidental storage of sensitive data.
+
+**Incorrect:**
+
+```typescript
+// No version, stores everything, no error handling
+localStorage.setItem('userConfig', JSON.stringify(fullUserObject))
+const data = localStorage.getItem('userConfig')
+```
+
+**Correct:**
+
+```typescript
+const VERSION = 'v2'
+
+function saveConfig(config: { theme: string; language: string }) {
+  try {
+    localStorage.setItem(`userConfig:${VERSION}`, JSON.stringify(config))
+  } catch {
+    // Throws in incognito/private browsing, quota exceeded, or disabled
+  }
+}
+
+function loadConfig() {
+  try {
+    const data = localStorage.getItem(`userConfig:${VERSION}`)
+    return data ? JSON.parse(data) : null
+  } catch {
+    return null
+  }
+}
+
+// Migration from v1 to v2
+function migrate() {
+  try {
+    const v1 = localStorage.getItem('userConfig:v1')
+    if (v1) {
+      const old = JSON.parse(v1)
+      saveConfig({ theme: old.darkMode ? 'dark' : 'light', language: old.lang })
+      localStorage.removeItem('userConfig:v1')
+    }
+  } catch {}
+}
+```
+
+**Store minimal fields from server responses:**
+
+```typescript
+// User object has 20+ fields, only store what UI needs
+function cachePrefs(user: FullUser) {
+  try {
+    localStorage.setItem('prefs:v1', JSON.stringify({
+      theme: user.preferences.theme,
+      notifications: user.preferences.notifications
+    }))
+  } catch {}
+}
+```
+
+**Always wrap in try-catch:** `getItem()` and `setItem()` throw in incognito/private browsing (Safari, Firefox), when quota exceeded, or when disabled.
+
+**Benefits:** Schema evolution via versioning, reduced storage size, prevents storing tokens/PII/internal flags.

.claude/skills/vercel-react-best-practices/rules/client-passive-event-listeners.md

@@ -0,0 +1,48 @@
+---
+title: Use Passive Event Listeners for Scrolling Performance
+impact: MEDIUM
+impactDescription: eliminates scroll delay caused by event listeners
+tags: client, event-listeners, scrolling, performance, touch, wheel
+---
+
+## Use Passive Event Listeners for Scrolling Performance
+
+Add `{ passive: true }` to touch and wheel event listeners to enable immediate scrolling. Browsers normally wait for listeners to finish to check if `preventDefault()` is called, causing scroll delay.
+
+**Incorrect:**
+
+```typescript
+useEffect(() => {
+  const handleTouch = (e: TouchEvent) => console.log(e.touches[0].clientX)
+  const handleWheel = (e: WheelEvent) => console.log(e.deltaY)
+  
+  document.addEventListener('touchstart', handleTouch)
+  document.addEventListener('wheel', handleWheel)
+  
+  return () => {
+    document.removeEventListener('touchstart', handleTouch)
+    document.removeEventListener('wheel', handleWheel)
+  }
+}, [])
+```
+
+**Correct:**
+
+```typescript
+useEffect(() => {
+  const handleTouch = (e: TouchEvent) => console.log(e.touches[0].clientX)
+  const handleWheel = (e: WheelEvent) => console.log(e.deltaY)
+  
+  document.addEventListener('touchstart', handleTouch, { passive: true })
+  document.addEventListener('wheel', handleWheel, { passive: true })
+  
+  return () => {
+    document.removeEventListener('touchstart', handleTouch)
+    document.removeEventListener('wheel', handleWheel)
+  }
+}, [])
+```
+
+**Use passive when:** tracking/analytics, logging, any listener that doesn't call `preventDefault()`.
+
+**Don't use passive when:** implementing custom swipe gestures, custom zoom controls, or any listener that needs `preventDefault()`.

.claude/skills/vercel-react-best-practices/rules/client-swr-dedup.md

@@ -0,0 +1,56 @@
+---
+title: Use SWR for Automatic Deduplication
+impact: MEDIUM-HIGH
+impactDescription: automatic deduplication
+tags: client, swr, deduplication, data-fetching
+---
+
+## Use SWR for Automatic Deduplication
+
+SWR enables request deduplication, caching, and revalidation across component instances.
+
+**Incorrect (no deduplication, each instance fetches):**
+
+```tsx
+function UserList() {
+  const [users, setUsers] = useState([])
+  useEffect(() => {
+    fetch('/api/users')
+      .then(r => r.json())
+      .then(setUsers)
+  }, [])
+}
+```
+
+**Correct (multiple instances share one request):**
+
+```tsx
+import useSWR from 'swr'
+
+function UserList() {
+  const { data: users } = useSWR('/api/users', fetcher)
+}
+```
+
+**For immutable data:**
+
+```tsx
+import { useImmutableSWR } from '@/lib/swr'
+
+function StaticContent() {
+  const { data } = useImmutableSWR('/api/config', fetcher)
+}
+```
+
+**For mutations:**
+
+```tsx
+import { useSWRMutation } from 'swr/mutation'
+
+function UpdateButton() {
+  const { trigger } = useSWRMutation('/api/user', updateUser)
+  return <button onClick={() => trigger()}>Update</button>
+}
+```
+
+Reference: [https://swr.vercel.app](https://swr.vercel.app)

.claude/skills/vercel-react-best-practices/rules/js-batch-dom-css.md

@@ -0,0 +1,57 @@
+---
+title: Batch DOM CSS Changes
+impact: MEDIUM
+impactDescription: reduces reflows/repaints
+tags: javascript, dom, css, performance, reflow
+---
+
+## Batch DOM CSS Changes
+
+Avoid interleaving style writes with layout reads. When you read a layout property (like `offsetWidth`, `getBoundingClientRect()`, or `getComputedStyle()`) between style changes, the browser is forced to trigger a synchronous reflow.
+
+**Incorrect (interleaved reads and writes force reflows):**
+
+```typescript
+function updateElementStyles(element: HTMLElement) {
+  element.style.width = '100px'
+  const width = element.offsetWidth  // Forces reflow
+  element.style.height = '200px'
+  const height = element.offsetHeight  // Forces another reflow
+}
+```
+
+**Correct (batch writes, then read once):**
+
+```typescript
+function updateElementStyles(element: HTMLElement) {
+  // Batch all writes together
+  element.style.width = '100px'
+  element.style.height = '200px'
+  element.style.backgroundColor = 'blue'
+  element.style.border = '1px solid black'
+  
+  // Read after all writes are done (single reflow)
+  const { width, height } = element.getBoundingClientRect()
+}
+```
+
+**Better: use CSS classes**
+
+```css
+.highlighted-box {
+  width: 100px;
+  height: 200px;
+  background-color: blue;
+  border: 1px solid black;
+}
+```
+
+```typescript
+function updateElementStyles(element: HTMLElement) {
+  element.classList.add('highlighted-box')
+
+  const { width, height } = element.getBoundingClientRect()
+}
+```
+
+Prefer CSS classes over inline styles when possible. CSS files are cached by the browser, and classes provide better separation of concerns and are easier to maintain.

.claude/skills/vercel-react-best-practices/rules/js-cache-function-results.md

@@ -0,0 +1,80 @@
+---
+title: Cache Repeated Function Calls
+impact: MEDIUM
+impactDescription: avoid redundant computation
+tags: javascript, cache, memoization, performance
+---
+
+## Cache Repeated Function Calls
+
+Use a module-level Map to cache function results when the same function is called repeatedly with the same inputs during render.
+
+**Incorrect (redundant computation):**
+
+```typescript
+function ProjectList({ projects }: { projects: Project[] }) {
+  return (
+    <div>
+      {projects.map(project => {
+        // slugify() called 100+ times for same project names
+        const slug = slugify(project.name)
+        
+        return <ProjectCard key={project.id} slug={slug} />
+      })}
+    </div>
+  )
+}
+```
+
+**Correct (cached results):**
+
+```typescript
+// Module-level cache
+const slugifyCache = new Map<string, string>()
+
+function cachedSlugify(text: string): string {
+  if (slugifyCache.has(text)) {
+    return slugifyCache.get(text)!
+  }
+  const result = slugify(text)
+  slugifyCache.set(text, result)
+  return result
+}
+
+function ProjectList({ projects }: { projects: Project[] }) {
+  return (
+    <div>
+      {projects.map(project => {
+        // Computed only once per unique project name
+        const slug = cachedSlugify(project.name)
+        
+        return <ProjectCard key={project.id} slug={slug} />
+      })}
+    </div>
+  )
+}
+```
+
+**Simpler pattern for single-value functions:**
+
+```typescript
+let isLoggedInCache: boolean | null = null
+
+function isLoggedIn(): boolean {
+  if (isLoggedInCache !== null) {
+    return isLoggedInCache
+  }
+  
+  isLoggedInCache = document.cookie.includes('auth=')
+  return isLoggedInCache
+}
+
+// Clear cache when auth changes
+function onAuthChange() {
+  isLoggedInCache = null
+}
+```
+
+Use a Map (not a hook) so it works everywhere: utilities, event handlers, not just React components.
+
+Reference: [How we made the Vercel Dashboard twice as fast](https://vercel.com/blog/how-we-made-the-vercel-dashboard-twice-as-fast)

.claude/skills/vercel-react-best-practices/rules/js-cache-property-access.md

@@ -0,0 +1,28 @@
+---
+title: Cache Property Access in Loops
+impact: LOW-MEDIUM
+impactDescription: reduces lookups
+tags: javascript, loops, optimization, caching
+---
+
+## Cache Property Access in Loops
+
+Cache object property lookups in hot paths.
+
+**Incorrect (3 lookups × N iterations):**
+
+```typescript
+for (let i = 0; i < arr.length; i++) {
+  process(obj.config.settings.value)
+}
+```
+
+**Correct (1 lookup total):**
+
+```typescript
+const value = obj.config.settings.value
+const len = arr.length
+for (let i = 0; i < len; i++) {
+  process(value)
+}
+```

.claude/skills/vercel-react-best-practices/rules/js-cache-storage.md

@@ -0,0 +1,70 @@
+---
+title: Cache Storage API Calls
+impact: LOW-MEDIUM
+impactDescription: reduces expensive I/O
+tags: javascript, localStorage, storage, caching, performance
+---
+
+## Cache Storage API Calls
+
+`localStorage`, `sessionStorage`, and `document.cookie` are synchronous and expensive. Cache reads in memory.
+
+**Incorrect (reads storage on every call):**
+
+```typescript
+function getTheme() {
+  return localStorage.getItem('theme') ?? 'light'
+}
+// Called 10 times = 10 storage reads
+```
+
+**Correct (Map cache):**
+
+```typescript
+const storageCache = new Map<string, string | null>()
+
+function getLocalStorage(key: string) {
+  if (!storageCache.has(key)) {
+    storageCache.set(key, localStorage.getItem(key))
+  }
+  return storageCache.get(key)
+}
+
+function setLocalStorage(key: string, value: string) {
+  localStorage.setItem(key, value)
+  storageCache.set(key, value)  // keep cache in sync
+}
+```
+
+Use a Map (not a hook) so it works everywhere: utilities, event handlers, not just React components.
+
+**Cookie caching:**
+
+```typescript
+let cookieCache: Record<string, string> | null = null
+
+function getCookie(name: string) {
+  if (!cookieCache) {
+    cookieCache = Object.fromEntries(
+      document.cookie.split('; ').map(c => c.split('='))
+    )
+  }
+  return cookieCache[name]
+}
+```
+
+**Important (invalidate on external changes):**
+
+If storage can change externally (another tab, server-set cookies), invalidate cache:
+
+```typescript
+window.addEventListener('storage', (e) => {
+  if (e.key) storageCache.delete(e.key)
+})
+
+document.addEventListener('visibilitychange', () => {
+  if (document.visibilityState === 'visible') {
+    storageCache.clear()
+  }
+})
+```

.claude/skills/vercel-react-best-practices/rules/js-combine-iterations.md

@@ -0,0 +1,32 @@
+---
+title: Combine Multiple Array Iterations
+impact: LOW-MEDIUM
+impactDescription: reduces iterations
+tags: javascript, arrays, loops, performance
+---
+
+## Combine Multiple Array Iterations
+
+Multiple `.filter()` or `.map()` calls iterate the array multiple times. Combine into one loop.
+
+**Incorrect (3 iterations):**
+
+```typescript
+const admins = users.filter(u => u.isAdmin)
+const testers = users.filter(u => u.isTester)
+const inactive = users.filter(u => !u.isActive)
+```
+
+**Correct (1 iteration):**
+
+```typescript
+const admins: User[] = []
+const testers: User[] = []
+const inactive: User[] = []
+
+for (const user of users) {
+  if (user.isAdmin) admins.push(user)
+  if (user.isTester) testers.push(user)
+  if (!user.isActive) inactive.push(user)
+}
+```

.claude/skills/vercel-react-best-practices/rules/js-early-exit.md

@@ -0,0 +1,50 @@
+---
+title: Early Return from Functions
+impact: LOW-MEDIUM
+impactDescription: avoids unnecessary computation
+tags: javascript, functions, optimization, early-return
+---
+
+## Early Return from Functions
+
+Return early when result is determined to skip unnecessary processing.
+
+**Incorrect (processes all items even after finding answer):**
+
+```typescript
+function validateUsers(users: User[]) {
+  let hasError = false
+  let errorMessage = ''
+  
+  for (const user of users) {
+    if (!user.email) {
+      hasError = true
+      errorMessage = 'Email required'
+    }
+    if (!user.name) {
+      hasError = true
+      errorMessage = 'Name required'
+    }
+    // Continues checking all users even after error found
+  }
+  
+  return hasError ? { valid: false, error: errorMessage } : { valid: true }
+}
+```
+
+**Correct (returns immediately on first error):**
+
+```typescript
+function validateUsers(users: User[]) {
+  for (const user of users) {
+    if (!user.email) {
+      return { valid: false, error: 'Email required' }
+    }
+    if (!user.name) {
+      return { valid: false, error: 'Name required' }
+    }
+  }
+
+  return { valid: true }
+}
+```

.claude/skills/vercel-react-best-practices/rules/js-hoist-regexp.md

@@ -0,0 +1,45 @@
+---
+title: Hoist RegExp Creation
+impact: LOW-MEDIUM
+impactDescription: avoids recreation
+tags: javascript, regexp, optimization, memoization
+---
+
+## Hoist RegExp Creation
+
+Don't create RegExp inside render. Hoist to module scope or memoize with `useMemo()`.
+
+**Incorrect (new RegExp every render):**
+
+```tsx
+function Highlighter({ text, query }: Props) {
+  const regex = new RegExp(`(${query})`, 'gi')
+  const parts = text.split(regex)
+  return <>{parts.map((part, i) => ...)}</>
+}
+```
+
+**Correct (memoize or hoist):**
+
+```tsx
+const EMAIL_REGEX = /^[^\s@]+@[^\s@]+\.[^\s@]+$/
+
+function Highlighter({ text, query }: Props) {
+  const regex = useMemo(
+    () => new RegExp(`(${escapeRegex(query)})`, 'gi'),
+    [query]
+  )
+  const parts = text.split(regex)
+  return <>{parts.map((part, i) => ...)}</>
+}
+```
+
+**Warning (global regex has mutable state):**
+
+Global regex (`/g`) has mutable `lastIndex` state:
+
+```typescript
+const regex = /foo/g
+regex.test('foo')  // true, lastIndex = 3
+regex.test('foo')  // false, lastIndex = 0
+```

.claude/skills/vercel-react-best-practices/rules/js-index-maps.md

@@ -0,0 +1,37 @@
+---
+title: Build Index Maps for Repeated Lookups
+impact: LOW-MEDIUM
+impactDescription: 1M ops to 2K ops
+tags: javascript, map, indexing, optimization, performance
+---
+
+## Build Index Maps for Repeated Lookups
+
+Multiple `.find()` calls by the same key should use a Map.
+
+**Incorrect (O(n) per lookup):**
+
+```typescript
+function processOrders(orders: Order[], users: User[]) {
+  return orders.map(order => ({
+    ...order,
+    user: users.find(u => u.id === order.userId)
+  }))
+}
+```
+
+**Correct (O(1) per lookup):**
+
+```typescript
+function processOrders(orders: Order[], users: User[]) {
+  const userById = new Map(users.map(u => [u.id, u]))
+
+  return orders.map(order => ({
+    ...order,
+    user: userById.get(order.userId)
+  }))
+}
+```
+
+Build map once (O(n)), then all lookups are O(1).
+For 1000 orders × 1000 users: 1M ops → 2K ops.

.claude/skills/vercel-react-best-practices/rules/js-length-check-first.md

@@ -0,0 +1,49 @@
+---
+title: Early Length Check for Array Comparisons
+impact: MEDIUM-HIGH
+impactDescription: avoids expensive operations when lengths differ
+tags: javascript, arrays, performance, optimization, comparison
+---
+
+## Early Length Check for Array Comparisons
+
+When comparing arrays with expensive operations (sorting, deep equality, serialization), check lengths first. If lengths differ, the arrays cannot be equal.
+
+In real-world applications, this optimization is especially valuable when the comparison runs in hot paths (event handlers, render loops).
+
+**Incorrect (always runs expensive comparison):**
+
+```typescript
+function hasChanges(current: string[], original: string[]) {
+  // Always sorts and joins, even when lengths differ
+  return current.sort().join() !== original.sort().join()
+}
+```
+
+Two O(n log n) sorts run even when `current.length` is 5 and `original.length` is 100. There is also overhead of joining the arrays and comparing the strings.
+
+**Correct (O(1) length check first):**
+
+```typescript
+function hasChanges(current: string[], original: string[]) {
+  // Early return if lengths differ
+  if (current.length !== original.length) {
+    return true
+  }
+  // Only sort when lengths match
+  const currentSorted = current.toSorted()
+  const originalSorted = original.toSorted()
+  for (let i = 0; i < currentSorted.length; i++) {
+    if (currentSorted[i] !== originalSorted[i]) {
+      return true
+    }
+  }
+  return false
+}
+```
+
+This new approach is more efficient because:
+- It avoids the overhead of sorting and joining the arrays when lengths differ
+- It avoids consuming memory for the joined strings (especially important for large arrays)
+- It avoids mutating the original arrays
+- It returns early when a difference is found

.claude/skills/vercel-react-best-practices/rules/js-min-max-loop.md

@@ -0,0 +1,82 @@
+---
+title: Use Loop for Min/Max Instead of Sort
+impact: LOW
+impactDescription: O(n) instead of O(n log n)
+tags: javascript, arrays, performance, sorting, algorithms
+---
+
+## Use Loop for Min/Max Instead of Sort
+
+Finding the smallest or largest element only requires a single pass through the array. Sorting is wasteful and slower.
+
+**Incorrect (O(n log n) - sort to find latest):**
+
+```typescript
+interface Project {
+  id: string
+  name: string
+  updatedAt: number
+}
+
+function getLatestProject(projects: Project[]) {
+  const sorted = [...projects].sort((a, b) => b.updatedAt - a.updatedAt)
+  return sorted[0]
+}
+```
+
+Sorts the entire array just to find the maximum value.
+
+**Incorrect (O(n log n) - sort for oldest and newest):**
+
+```typescript
+function getOldestAndNewest(projects: Project[]) {
+  const sorted = [...projects].sort((a, b) => a.updatedAt - b.updatedAt)
+  return { oldest: sorted[0], newest: sorted[sorted.length - 1] }
+}
+```
+
+Still sorts unnecessarily when only min/max are needed.
+
+**Correct (O(n) - single loop):**
+
+```typescript
+function getLatestProject(projects: Project[]) {
+  if (projects.length === 0) return null
+  
+  let latest = projects[0]
+  
+  for (let i = 1; i < projects.length; i++) {
+    if (projects[i].updatedAt > latest.updatedAt) {
+      latest = projects[i]
+    }
+  }
+  
+  return latest
+}
+
+function getOldestAndNewest(projects: Project[]) {
+  if (projects.length === 0) return { oldest: null, newest: null }
+  
+  let oldest = projects[0]
+  let newest = projects[0]
+  
+  for (let i = 1; i < projects.length; i++) {
+    if (projects[i].updatedAt < oldest.updatedAt) oldest = projects[i]
+    if (projects[i].updatedAt > newest.updatedAt) newest = projects[i]
+  }
+  
+  return { oldest, newest }
+}
+```
+
+Single pass through the array, no copying, no sorting.
+
+**Alternative (Math.min/Math.max for small arrays):**
+
+```typescript
+const numbers = [5, 2, 8, 1, 9]
+const min = Math.min(...numbers)
+const max = Math.max(...numbers)
+```
+
+This works for small arrays, but can be slower or just throw an error for very large arrays due to spread operator limitations. Maximal array length is approximately 124000 in Chrome 143 and 638000 in Safari 18; exact numbers may vary - see [the fiddle](https://jsfiddle.net/qw1jabsx/4/). Use the loop approach for reliability.

.claude/skills/vercel-react-best-practices/rules/js-set-map-lookups.md

@@ -0,0 +1,24 @@
+---
+title: Use Set/Map for O(1) Lookups
+impact: LOW-MEDIUM
+impactDescription: O(n) to O(1)
+tags: javascript, set, map, data-structures, performance
+---
+
+## Use Set/Map for O(1) Lookups
+
+Convert arrays to Set/Map for repeated membership checks.
+
+**Incorrect (O(n) per check):**
+
+```typescript
+const allowedIds = ['a', 'b', 'c', ...]
+items.filter(item => allowedIds.includes(item.id))
+```
+
+**Correct (O(1) per check):**
+
+```typescript
+const allowedIds = new Set(['a', 'b', 'c', ...])
+items.filter(item => allowedIds.has(item.id))
+```

.claude/skills/vercel-react-best-practices/rules/js-tosorted-immutable.md

@@ -0,0 +1,57 @@
+---
+title: Use toSorted() Instead of sort() for Immutability
+impact: MEDIUM-HIGH
+impactDescription: prevents mutation bugs in React state
+tags: javascript, arrays, immutability, react, state, mutation
+---
+
+## Use toSorted() Instead of sort() for Immutability
+
+`.sort()` mutates the array in place, which can cause bugs with React state and props. Use `.toSorted()` to create a new sorted array without mutation.
+
+**Incorrect (mutates original array):**
+
+```typescript
+function UserList({ users }: { users: User[] }) {
+  // Mutates the users prop array!
+  const sorted = useMemo(
+    () => users.sort((a, b) => a.name.localeCompare(b.name)),
+    [users]
+  )
+  return <div>{sorted.map(renderUser)}</div>
+}
+```
+
+**Correct (creates new array):**
+
+```typescript
+function UserList({ users }: { users: User[] }) {
+  // Creates new sorted array, original unchanged
+  const sorted = useMemo(
+    () => users.toSorted((a, b) => a.name.localeCompare(b.name)),
+    [users]
+  )
+  return <div>{sorted.map(renderUser)}</div>
+}
+```
+
+**Why this matters in React:**
+
+1. Props/state mutations break React's immutability model - React expects props and state to be treated as read-only
+2. Causes stale closure bugs - Mutating arrays inside closures (callbacks, effects) can lead to unexpected behavior
+
+**Browser support (fallback for older browsers):**
+
+`.toSorted()` is available in all modern browsers (Chrome 110+, Safari 16+, Firefox 115+, Node.js 20+). For older environments, use spread operator:
+
+```typescript
+// Fallback for older browsers
+const sorted = [...items].sort((a, b) => a.value - b.value)
+```
+
+**Other immutable array methods:**
+
+- `.toSorted()` - immutable sort
+- `.toReversed()` - immutable reverse
+- `.toSpliced()` - immutable splice
+- `.with()` - immutable element replacement

.claude/skills/vercel-react-best-practices/rules/rendering-activity.md

@@ -0,0 +1,26 @@
+---
+title: Use Activity Component for Show/Hide
+impact: MEDIUM
+impactDescription: preserves state/DOM
+tags: rendering, activity, visibility, state-preservation
+---
+
+## Use Activity Component for Show/Hide
+
+Use React's `<Activity>` to preserve state/DOM for expensive components that frequently toggle visibility.
+
+**Usage:**
+
+```tsx
+import { Activity } from 'react'
+
+function Dropdown({ isOpen }: Props) {
+  return (
+    <Activity mode={isOpen ? 'visible' : 'hidden'}>
+      <ExpensiveMenu />
+    </Activity>
+  )
+}
+```
+
+Avoids expensive re-renders and state loss.

.claude/skills/vercel-react-best-practices/rules/rendering-animate-svg-wrapper.md

@@ -0,0 +1,47 @@
+---
+title: Animate SVG Wrapper Instead of SVG Element
+impact: LOW
+impactDescription: enables hardware acceleration
+tags: rendering, svg, css, animation, performance
+---
+
+## Animate SVG Wrapper Instead of SVG Element
+
+Many browsers don't have hardware acceleration for CSS3 animations on SVG elements. Wrap SVG in a `<div>` and animate the wrapper instead.
+
+**Incorrect (animating SVG directly - no hardware acceleration):**
+
+```tsx
+function LoadingSpinner() {
+  return (
+    <svg 
+      className="animate-spin"
+      width="24" 
+      height="24" 
+      viewBox="0 0 24 24"
+    >
+      <circle cx="12" cy="12" r="10" stroke="currentColor" />
+    </svg>
+  )
+}
+```
+
+**Correct (animating wrapper div - hardware accelerated):**
+
+```tsx
+function LoadingSpinner() {
+  return (
+    <div className="animate-spin">
+      <svg 
+        width="24" 
+        height="24" 
+        viewBox="0 0 24 24"
+      >
+        <circle cx="12" cy="12" r="10" stroke="currentColor" />
+      </svg>
+    </div>
+  )
+}
+```
+
+This applies to all CSS transforms and transitions (`transform`, `opacity`, `translate`, `scale`, `rotate`). The wrapper div allows browsers to use GPU acceleration for smoother animations.

.claude/skills/vercel-react-best-practices/rules/rendering-conditional-render.md

@@ -0,0 +1,40 @@
+---
+title: Use Explicit Conditional Rendering
+impact: LOW
+impactDescription: prevents rendering 0 or NaN
+tags: rendering, conditional, jsx, falsy-values
+---
+
+## Use Explicit Conditional Rendering
+
+Use explicit ternary operators (`? :`) instead of `&&` for conditional rendering when the condition can be `0`, `NaN`, or other falsy values that render.
+
+**Incorrect (renders "0" when count is 0):**
+
+```tsx
+function Badge({ count }: { count: number }) {
+  return (
+    <div>
+      {count && <span className="badge">{count}</span>}
+    </div>
+  )
+}
+
+// When count = 0, renders: <div>0</div>
+// When count = 5, renders: <div><span class="badge">5</span></div>
+```
+
+**Correct (renders nothing when count is 0):**
+
+```tsx
+function Badge({ count }: { count: number }) {
+  return (
+    <div>
+      {count > 0 ? <span className="badge">{count}</span> : null}
+    </div>
+  )
+}
+
+// When count = 0, renders: <div></div>
+// When count = 5, renders: <div><span class="badge">5</span></div>
+```

.claude/skills/vercel-react-best-practices/rules/rendering-content-visibility.md

@@ -0,0 +1,38 @@
+---
+title: CSS content-visibility for Long Lists
+impact: HIGH
+impactDescription: faster initial render
+tags: rendering, css, content-visibility, long-lists
+---
+
+## CSS content-visibility for Long Lists
+
+Apply `content-visibility: auto` to defer off-screen rendering.
+
+**CSS:**
+
+```css
+.message-item {
+  content-visibility: auto;
+  contain-intrinsic-size: 0 80px;
+}
+```
+
+**Example:**
+
+```tsx
+function MessageList({ messages }: { messages: Message[] }) {
+  return (
+    <div className="overflow-y-auto h-screen">
+      {messages.map(msg => (
+        <div key={msg.id} className="message-item">
+          <Avatar user={msg.author} />
+          <div>{msg.content}</div>
+        </div>
+      ))}
+    </div>
+  )
+}
+```
+
+For 1000 messages, browser skips layout/paint for ~990 off-screen items (10× faster initial render).

.claude/skills/vercel-react-best-practices/rules/rendering-hoist-jsx.md

@@ -0,0 +1,46 @@
+---
+title: Hoist Static JSX Elements
+impact: LOW
+impactDescription: avoids re-creation
+tags: rendering, jsx, static, optimization
+---
+
+## Hoist Static JSX Elements
+
+Extract static JSX outside components to avoid re-creation.
+
+**Incorrect (recreates element every render):**
+
+```tsx
+function LoadingSkeleton() {
+  return <div className="animate-pulse h-20 bg-gray-200" />
+}
+
+function Container() {
+  return (
+    <div>
+      {loading && <LoadingSkeleton />}
+    </div>
+  )
+}
+```
+
+**Correct (reuses same element):**
+
+```tsx
+const loadingSkeleton = (
+  <div className="animate-pulse h-20 bg-gray-200" />
+)
+
+function Container() {
+  return (
+    <div>
+      {loading && loadingSkeleton}
+    </div>
+  )
+}
+```
+
+This is especially helpful for large and static SVG nodes, which can be expensive to recreate on every render.
+
+**Note:** If your project has [React Compiler](https://react.dev/learn/react-compiler) enabled, the compiler automatically hoists static JSX elements and optimizes component re-renders, making manual hoisting unnecessary.

.claude/skills/vercel-react-best-practices/rules/rendering-hydration-no-flicker.md

@@ -0,0 +1,82 @@
+---
+title: Prevent Hydration Mismatch Without Flickering
+impact: MEDIUM
+impactDescription: avoids visual flicker and hydration errors
+tags: rendering, ssr, hydration, localStorage, flicker
+---
+
+## Prevent Hydration Mismatch Without Flickering
+
+When rendering content that depends on client-side storage (localStorage, cookies), avoid both SSR breakage and post-hydration flickering by injecting a synchronous script that updates the DOM before React hydrates.
+
+**Incorrect (breaks SSR):**
+
+```tsx
+function ThemeWrapper({ children }: { children: ReactNode }) {
+  // localStorage is not available on server - throws error
+  const theme = localStorage.getItem('theme') || 'light'
+  
+  return (
+    <div className={theme}>
+      {children}
+    </div>
+  )
+}
+```
+
+Server-side rendering will fail because `localStorage` is undefined.
+
+**Incorrect (visual flickering):**
+
+```tsx
+function ThemeWrapper({ children }: { children: ReactNode }) {
+  const [theme, setTheme] = useState('light')
+  
+  useEffect(() => {
+    // Runs after hydration - causes visible flash
+    const stored = localStorage.getItem('theme')
+    if (stored) {
+      setTheme(stored)
+    }
+  }, [])
+  
+  return (
+    <div className={theme}>
+      {children}
+    </div>
+  )
+}
+```
+
+Component first renders with default value (`light`), then updates after hydration, causing a visible flash of incorrect content.
+
+**Correct (no flicker, no hydration mismatch):**
+
+```tsx
+function ThemeWrapper({ children }: { children: ReactNode }) {
+  return (
+    <>
+      <div id="theme-wrapper">
+        {children}
+      </div>
+      <script
+        dangerouslySetInnerHTML={{
+          __html: `
+            (function() {
+              try {
+                var theme = localStorage.getItem('theme') || 'light';
+                var el = document.getElementById('theme-wrapper');
+                if (el) el.className = theme;
+              } catch (e) {}
+            })();
+          `,
+        }}
+      />
+    </>
+  )
+}
+```
+
+The inline script executes synchronously before showing the element, ensuring the DOM already has the correct value. No flickering, no hydration mismatch.
+
+This pattern is especially useful for theme toggles, user preferences, authentication states, and any client-only data that should render immediately without flashing default values.

.claude/skills/vercel-react-best-practices/rules/rendering-svg-precision.md

@@ -0,0 +1,28 @@
+---
+title: Optimize SVG Precision
+impact: LOW
+impactDescription: reduces file size
+tags: rendering, svg, optimization, svgo
+---
+
+## Optimize SVG Precision
+
+Reduce SVG coordinate precision to decrease file size. The optimal precision depends on the viewBox size, but in general reducing precision should be considered.
+
+**Incorrect (excessive precision):**
+
+```svg
+<path d="M 10.293847 20.847362 L 30.938472 40.192837" />
+```
+
+**Correct (1 decimal place):**
+
+```svg
+<path d="M 10.3 20.8 L 30.9 40.2" />
+```
+
+**Automate with SVGO:**
+
+```bash
+npx svgo --precision=1 --multipass icon.svg
+```

.claude/skills/vercel-react-best-practices/rules/rerender-defer-reads.md

@@ -0,0 +1,39 @@
+---
+title: Defer State Reads to Usage Point
+impact: MEDIUM
+impactDescription: avoids unnecessary subscriptions
+tags: rerender, searchParams, localStorage, optimization
+---
+
+## Defer State Reads to Usage Point
+
+Don't subscribe to dynamic state (searchParams, localStorage) if you only read it inside callbacks.
+
+**Incorrect (subscribes to all searchParams changes):**
+
+```tsx
+function ShareButton({ chatId }: { chatId: string }) {
+  const searchParams = useSearchParams()
+
+  const handleShare = () => {
+    const ref = searchParams.get('ref')
+    shareChat(chatId, { ref })
+  }
+
+  return <button onClick={handleShare}>Share</button>
+}
+```
+
+**Correct (reads on demand, no subscription):**
+
+```tsx
+function ShareButton({ chatId }: { chatId: string }) {
+  const handleShare = () => {
+    const params = new URLSearchParams(window.location.search)
+    const ref = params.get('ref')
+    shareChat(chatId, { ref })
+  }
+
+  return <button onClick={handleShare}>Share</button>
+}
+```

.claude/skills/vercel-react-best-practices/rules/rerender-dependencies.md

@@ -0,0 +1,45 @@
+---
+title: Narrow Effect Dependencies
+impact: LOW
+impactDescription: minimizes effect re-runs
+tags: rerender, useEffect, dependencies, optimization
+---
+
+## Narrow Effect Dependencies
+
+Specify primitive dependencies instead of objects to minimize effect re-runs.
+
+**Incorrect (re-runs on any user field change):**
+
+```tsx
+useEffect(() => {
+  console.log(user.id)
+}, [user])
+```
+
+**Correct (re-runs only when id changes):**
+
+```tsx
+useEffect(() => {
+  console.log(user.id)
+}, [user.id])
+```
+
+**For derived state, compute outside effect:**
+
+```tsx
+// Incorrect: runs on width=767, 766, 765...
+useEffect(() => {
+  if (width < 768) {
+    enableMobileMode()
+  }
+}, [width])
+
+// Correct: runs only on boolean transition
+const isMobile = width < 768
+useEffect(() => {
+  if (isMobile) {
+    enableMobileMode()
+  }
+}, [isMobile])
+```

.claude/skills/vercel-react-best-practices/rules/rerender-derived-state.md

@@ -0,0 +1,29 @@
+---
+title: Subscribe to Derived State
+impact: MEDIUM
+impactDescription: reduces re-render frequency
+tags: rerender, derived-state, media-query, optimization
+---
+
+## Subscribe to Derived State
+
+Subscribe to derived boolean state instead of continuous values to reduce re-render frequency.
+
+**Incorrect (re-renders on every pixel change):**
+
+```tsx
+function Sidebar() {
+  const width = useWindowWidth()  // updates continuously
+  const isMobile = width < 768
+  return <nav className={isMobile ? 'mobile' : 'desktop'} />
+}
+```
+
+**Correct (re-renders only when boolean changes):**
+
+```tsx
+function Sidebar() {
+  const isMobile = useMediaQuery('(max-width: 767px)')
+  return <nav className={isMobile ? 'mobile' : 'desktop'} />
+}
+```

.claude/skills/vercel-react-best-practices/rules/rerender-functional-setstate.md

@@ -0,0 +1,74 @@
+---
+title: Use Functional setState Updates
+impact: MEDIUM
+impactDescription: prevents stale closures and unnecessary callback recreations
+tags: react, hooks, useState, useCallback, callbacks, closures
+---
+
+## Use Functional setState Updates
+
+When updating state based on the current state value, use the functional update form of setState instead of directly referencing the state variable. This prevents stale closures, eliminates unnecessary dependencies, and creates stable callback references.
+
+**Incorrect (requires state as dependency):**
+
+```tsx
+function TodoList() {
+  const [items, setItems] = useState(initialItems)
+  
+  // Callback must depend on items, recreated on every items change
+  const addItems = useCallback((newItems: Item[]) => {
+    setItems([...items, ...newItems])
+  }, [items])  // ❌ items dependency causes recreations
+  
+  // Risk of stale closure if dependency is forgotten
+  const removeItem = useCallback((id: string) => {
+    setItems(items.filter(item => item.id !== id))
+  }, [])  // ❌ Missing items dependency - will use stale items!
+  
+  return <ItemsEditor items={items} onAdd={addItems} onRemove={removeItem} />
+}
+```
+
+The first callback is recreated every time `items` changes, which can cause child components to re-render unnecessarily. The second callback has a stale closure bug—it will always reference the initial `items` value.
+
+**Correct (stable callbacks, no stale closures):**
+
+```tsx
+function TodoList() {
+  const [items, setItems] = useState(initialItems)
+  
+  // Stable callback, never recreated
+  const addItems = useCallback((newItems: Item[]) => {
+    setItems(curr => [...curr, ...newItems])
+  }, [])  // ✅ No dependencies needed
+  
+  // Always uses latest state, no stale closure risk
+  const removeItem = useCallback((id: string) => {
+    setItems(curr => curr.filter(item => item.id !== id))
+  }, [])  // ✅ Safe and stable
+  
+  return <ItemsEditor items={items} onAdd={addItems} onRemove={removeItem} />
+}
+```
+
+**Benefits:**
+
+1. **Stable callback references** - Callbacks don't need to be recreated when state changes
+2. **No stale closures** - Always operates on the latest state value
+3. **Fewer dependencies** - Simplifies dependency arrays and reduces memory leaks
+4. **Prevents bugs** - Eliminates the most common source of React closure bugs
+
+**When to use functional updates:**
+
+- Any setState that depends on the current state value
+- Inside useCallback/useMemo when state is needed
+- Event handlers that reference state
+- Async operations that update state
+
+**When direct updates are fine:**
+
+- Setting state to a static value: `setCount(0)`
+- Setting state from props/arguments only: `setName(newName)`
+- State doesn't depend on previous value
+
+**Note:** If your project has [React Compiler](https://react.dev/learn/react-compiler) enabled, the compiler can automatically optimize some cases, but functional updates are still recommended for correctness and to prevent stale closure bugs.

.claude/skills/vercel-react-best-practices/rules/rerender-lazy-state-init.md

@@ -0,0 +1,58 @@
+---
+title: Use Lazy State Initialization
+impact: MEDIUM
+impactDescription: wasted computation on every render
+tags: react, hooks, useState, performance, initialization
+---
+
+## Use Lazy State Initialization
+
+Pass a function to `useState` for expensive initial values. Without the function form, the initializer runs on every render even though the value is only used once.
+
+**Incorrect (runs on every render):**
+
+```tsx
+function FilteredList({ items }: { items: Item[] }) {
+  // buildSearchIndex() runs on EVERY render, even after initialization
+  const [searchIndex, setSearchIndex] = useState(buildSearchIndex(items))
+  const [query, setQuery] = useState('')
+  
+  // When query changes, buildSearchIndex runs again unnecessarily
+  return <SearchResults index={searchIndex} query={query} />
+}
+
+function UserProfile() {
+  // JSON.parse runs on every render
+  const [settings, setSettings] = useState(
+    JSON.parse(localStorage.getItem('settings') || '{}')
+  )
+  
+  return <SettingsForm settings={settings} onChange={setSettings} />
+}
+```
+
+**Correct (runs only once):**
+
+```tsx
+function FilteredList({ items }: { items: Item[] }) {
+  // buildSearchIndex() runs ONLY on initial render
+  const [searchIndex, setSearchIndex] = useState(() => buildSearchIndex(items))
+  const [query, setQuery] = useState('')
+  
+  return <SearchResults index={searchIndex} query={query} />
+}
+
+function UserProfile() {
+  // JSON.parse runs only on initial render
+  const [settings, setSettings] = useState(() => {
+    const stored = localStorage.getItem('settings')
+    return stored ? JSON.parse(stored) : {}
+  })
+  
+  return <SettingsForm settings={settings} onChange={setSettings} />
+}
+```
+
+Use lazy initialization when computing initial values from localStorage/sessionStorage, building data structures (indexes, maps), reading from the DOM, or performing heavy transformations.
+
+For simple primitives (`useState(0)`), direct references (`useState(props.value)`), or cheap literals (`useState({})`), the function form is unnecessary.

.claude/skills/vercel-react-best-practices/rules/rerender-memo.md

@@ -0,0 +1,44 @@
+---
+title: Extract to Memoized Components
+impact: MEDIUM
+impactDescription: enables early returns
+tags: rerender, memo, useMemo, optimization
+---
+
+## Extract to Memoized Components
+
+Extract expensive work into memoized components to enable early returns before computation.
+
+**Incorrect (computes avatar even when loading):**
+
+```tsx
+function Profile({ user, loading }: Props) {
+  const avatar = useMemo(() => {
+    const id = computeAvatarId(user)
+    return <Avatar id={id} />
+  }, [user])
+
+  if (loading) return <Skeleton />
+  return <div>{avatar}</div>
+}
+```
+
+**Correct (skips computation when loading):**
+
+```tsx
+const UserAvatar = memo(function UserAvatar({ user }: { user: User }) {
+  const id = useMemo(() => computeAvatarId(user), [user])
+  return <Avatar id={id} />
+})
+
+function Profile({ user, loading }: Props) {
+  if (loading) return <Skeleton />
+  return (
+    <div>
+      <UserAvatar user={user} />
+    </div>
+  )
+}
+```
+
+**Note:** If your project has [React Compiler](https://react.dev/learn/react-compiler) enabled, manual memoization with `memo()` and `useMemo()` is not necessary. The compiler automatically optimizes re-renders.