haflow

Software testing expertise for writing effective tests. Use when writing tests, reviewing test quality, designing test suites, debugging test failures, or implementing TDD. Covers xUnit patterns, test case selection, mocks/fixtures, parametrization, testing stateful systems, BDD, golden/snapshot testing, and LLM output evaluation.

Sync the claudeResources registry in claude-runner.ts with actual files in .claude folder. Use when adding, removing, or renaming skills/agents/commands, or when claudeResources may be out of sync with the .claude directory structure.

Turn rough MyTraining feature requests into testable PRDs (Mutual Persistent Memory + Backend PRD + Frontend PRD) with explicit API contracts, acceptance criteria mapped to tests, and stable `data-testid` selectors for E2E.

Use when running E2E checks or debugging the web app with Playwright MCP, especially when you need to (1) ensure the demo user exists with superadmin permissions via demo.sql, and (2) login via /demoLogin on localhost.

React performance optimization guidelines. This skill should be used when writing, reviewing, or refactoring React code to ensure optimal performance patterns. Triggers on tasks involving React components, data fetching, bundle optimization, or performance improvements.

Guide for creating effective skills. Use when creating a new skill (or updating an existing one) that extends the assistant with specialized knowledge, workflows, or tool integrations.

Transform vague or informal prompts into structured, precise prompts optimized for the researchCodebase agent. Use when preparing to launch codebase research and the user's request needs refinement for better results.

Expert SQL developer specializing in complex query optimization, database design, and performance tuning across PostgreSQL, MySQL, SQL Server, and Oracle; includes advanced SQL patterns, indexing strategies, and data warehousing techniques.

Use when starting feature work that needs isolation from current workspace or before executing implementation plans - creates isolated git worktrees with smart directory selection and safety verification (project)

Use when starting feature work that needs isolation from current workspace or before executing implementation plans - creates isolated git worktrees with smart directory selection, proper branch naming, safety verification, and automatic remote setup (project)