Clean Pytest

Write and run tests across languages and frameworks. Use when setting up test suites, writing unit/integration/E2E tests, measuring coverage, mocking dependencies, or debugging test failures. Covers Node.js (Jest/Vitest), Python (pytest), Go, Rust, and Bash.

Unit, integration, and E2E testing patterns with framework-specific guidance. Use when asked to "write tests", "add test coverage", "testing strategy", "test this function", "create test suite", "fix flaky tests", or "improve test quality".

Write reliable Python avoiding mutable defaults, import traps, and common runtime surprises.

Automatically generates pytest-compatible unit test templates from Python function signatures and docstrings

Write, run, and manage unit, integration, and E2E tests across TypeScript, Python, and Swift using recommended frameworks.

Deep code audit + documentation sync + release preparation for Python packages. Use when preparing a release, checking code quality before publishing, auditi...