Smart dependency management for any language. Auto-detects project type, applies safe updates automatically, prompts for major versions, diagnoses and fixes dependency issues.
Patterns and guidelines for writing Playwright E2E tests in this project — page object rules, assertion placement, and locator conventions. Use when writing new tests or reviewing existing ones.
Use when Codex updates, fixes, or adds unit tests in this project. Covers basic unit test conventions, Vitest usage, and Cloudflare-related unit tests that should use Cloudflare's Vitest worker-pool integration instead of hand-rolled runtime mocks.
You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.
Use when facing 2+ independent tasks that can be worked on without shared state or sequential dependencies
Run, write, and debug Playwright E2E tests for this project. Use when running a single test file or a single named test, writing new E2E tests, working with Page Objects, or mocking songs. Covers test setup, page object initialization, and song fixture mocking.
Use when you have a written implementation plan to execute in a separate session with review checkpoints
Use when executing implementation plans with independent tasks in the current session