Use when implementing any feature, bugfix, or refactor that has a testable outcome. Activate for keywords like "TDD", "test-first", "red-green", "write the test first", "implement <feature>", "fix <bug>". Enforces the red-green-refactor discipline -- write a failing test, make it pass with the smallest change, refactor with tests as a safety net. Always paste the red and green test runner output -- never claim "tests pass" without showing them pass.
How to install test-first?
duthaho/claudekit/test-first
$npx -y skills add duthaho/claudekit --skill test-firstInstalls into the current project.
›Prefer a prompt? Paste this to your agent
Run `npx skills use "https://github.com/duthaho/claudekit" --skill "duthaho/claudekit/test-first"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/duthaho/claudekit" that are relevant to the current task. Run `npx skills add "https://github.com/duthaho/claudekit"` and select the relevant skills, then follow their instructions.
Related
6 picksType
- tddTest-driven development. Use when the user wants to build features or fix bugs test-first, mentions "red-green-refactor", or wants integration tests.Jul 2026
- test-driven-developmentUse when implementing any feature or bugfix, before writing implementation codeJul 2026
- qaInteractive QA session where user reports bugs or issues conversationally, and the agent files GitHub issues.Jul 2026
- verification-before-completionUse when about to claim work is complete, fixed, or passing, before committing or creating PRs - requires running verification commands and confirming output…Jul 2026
- webapp-testingToolkit for interacting with and testing local web applications using Playwright.Jul 2026
- playwright-best-practicesUse when writing Playwright tests, fixing flaky tests, debugging failures, implementing Page Object Model, configuring CI/CD, optimizing performance, mocking…Jul 2026
