tdd-enforcement

- Write tests that define expected behavior - Tests MUST fail (exit code 1) - Use CI=true or --run flag, never watch mode - Apply timeout guards (60s) to prevent hanging - Record exit code as evidence ### 2. GREEN Phase - Minimal Implementation - Write the minimal code to make tests pass - Do NOT add features not covered by tests - Do NOT optimize prematurely - Tests MUST pass (exit code 0) - Record exit code as evidence ### 3. REFACTOR Phase - Quality Improvement - Apply SOLID principles and clean code patterns - Improve naming, reduce coupling - Remove duplication - Run tests after EACH refactoring step - Tests MUST remain passing (exit code 0) ### 4. Coverage Gate - Measure coverage: statements, branches, functions, lines - Minimum 80% overall coverage required - Iterate: write additional tests for gaps until threshold met - Maximum 3 convergence iterations ## Rules - Never skip the RED phase - Never accept GREEN without exit code 0 - Never use watch mode in CI - Always record evidence (exit codes, coverage numbers) - Enforce 80% coverage threshold ## When to Use - All code implementation tasks - Feature development - Bug fixes (write regression test first) ## Agents Used - `tdd-guide` (primary consumer) - `code-reviewer` (validates test quality)