Enforce test-first development by writing failing tests before implementing code.
npx skills add https://github.com/jacexh/skills --skill tdd-jacexh
Please help me install this Agent Skill. Skill: tdd Source: https://github.com/jacexh/skills/tree/main/skills/tdd Command: npx skills add https://github.com/jacexh/skills --skill tdd-jacexh
Prevents untested code, regressions, and design drift by forcing requirements to be specified as failing tests before implementation. It ensures behavior is documented, reproducible, and protected by automated checks so changes are safer and easier to reason about.
Write a failing test that reproduces the desired behavior, run it to confirm the failure, implement the minimal change to make it pass, and then refactor while keeping all tests green.
High-intent search queries and answers about installing and using this skill.
Test-driven development prevents regressions by enforcing a failing test before implementation. You write a test, verify the failure, implement the minimal code to pass, and refactor while keeping the test suite green.
The red-green-refactor cycle is a test-first workflow: write a failing test (red), implement the minimal code to pass (green), and refactor safely while keeping tests green to drive verifiable feature development.
To capture a bug fix with a failing test, write a test that reproduces the exact bug, run it to confirm the failure, implement the minimal fix to make it pass, and prevent future regressions automatically.
Yes, test-first development guides API design and expected behavior by defining interfaces and requirements through failing tests before implementation, which aids refactors, integration work, and clearer team collaboration.
The metadata does not specify explicit limitations on when to avoid test-first development. The core focus is applying the red-green-refactor cycle to enforce behavior documentation and prevent design drift.
No specific external dependencies or unit-testing frameworks are required. You need to define desired behavior as a failing test, confirm the failure, implement the minimal change to pass, and refactor safely.
rbaumierEnforce failing tests before production code using Red-Green-Refactor cycles.
ReinaMacCredyEnforce the Red-Green-Refactor cycle with failing tests before implementation.
janewilkinRun pytest test suites and generate code coverage reports.
GainInsightDevGenerate Markdown BDD scenarios from requirements with test type classification.
