Summary
This is a comprehensive testing skill that covers the full pyramid from unit tests through E2E, with solid examples across JavaScript, Python, Go, and Java. It includes proper mocking patterns, parametrized tests, and async handling. The TDD/BDD focus is clear, and it restricts tool usage to relevant test runners like Jest, Vitest, Pytest, and framework-specific commands. Best for when you need Claude to write or review test suites with proper structure, not just generate quick assertions. The emphasis on the test pyramid and coverage goals (80-90% for units, critical paths for integration) shows practical judgment rather than chasing 100% coverage.
Install to Claude Code
npx -y skills add personamanagmentlayer/pcl --skill testing-expert --agent claude-codeInstalls into .claude/skills of the current project.
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Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
