Guide developers through red-green-refactor cycles for feature work.
npx skills add https://github.com/RyanCallahan312/crayon --skill tdd-ryancallahan312
Please help me install this Agent Skill. Skill: tdd Source: https://github.com/RyanCallahan312/crayon/tree/main/.agents/skills/tdd Command: npx skills add https://github.com/RyanCallahan312/crayon --skill tdd-ryancallahan312
Test-driven development (TDD) helps teams ensure software behavior is validated via public interfaces, reducing regression when implementing features or fixing bugs.
Run a first red-green-refactor cycle on a new feature by writing a failing test, implementing minimal code to pass, and then refactoring for maintainability.
High-intent search queries and answers about installing and using this skill.
Test-driven development for a new feature follows a red-green-refactor cycle: write a failing test first, implement just enough code to pass, then refactor for clarity. This validates behavior through public interfaces from the start.
A tracer bullet is an end-to-end integration test that validates a thin vertical slice of a feature early in development. It exercises real code paths through public APIs to verify architectural assumptions before implementing full logic.
Integration-style testing in TDD emphasizes end-to-end tests that exercise real code paths through public APIs, rather than isolating individual units. This approach validates complete user-facing features and reduces regression when implementing changes.
Vertical slice testing is used when planning and executing small, complete user-facing features. It enables incremental learning by building, testing, and reflecting on one functional slice at a time rather than building horizontal layers separately.
Yes, TDD is applicable to bug fixes across software projects. You write a failing integration test that reproduces the bug, implement the minimal code fix to make it pass, and then refactor to maintain quality and prevent future regressions.
Refactoring after a passing test involves improving code clarity and maintainability while keeping the test green. The focus is on quality assurance through the red-green-refactor cycle, ensuring the public interface behavior remains unchanged.
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