test-driven-development
Strict RED-GREEN-REFACTOR cycle enforcement. Tests are never skipped or deferred. Run mode only, never watch mode. Exit code evidence mandatory.
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- a5c-ai/babysitter
- Last source activity
- June 1, 2026 at 07:46
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- English
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- 1,813
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- 111
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SKILL.md
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- test-driven-development
- description
- Strict RED-GREEN-REFACTOR cycle enforcement. Tests are never skipped or deferred. Run mode only, never watch mode. Exit code evidence mandatory.
- allowed-tools
- Read, Write, Edit, Bash, Grep, Glob
- graph
- {"domains":["domain:software-engineering"],"skillAreas":["skill-area:agentic-loops","skill-area:orchestration-loop"],"workflows":["workflow:feature-development"],"topics":["topic:developer-experience"],"roles":["role:tech-lead","role:backend-engineer"]}
- 2. **GREEN**
- Write minimal code to make test pass. Exit code MUST be 0.
- 3. **REFACTOR**
- Clean up implementation while keeping tests green. Exit code MUST remain 0.
## Non-Negotiable Rules
- Always use run mode (`CI=true npm test` or `--run` flag)
- NEVER use watch mode (prevents hanging processes)
- Use timeout guards (`timeout 60s`) as backup
- Record exit codes as evidence at each phase
- If tests fail 3 consecutive times in GREEN, report failure status
- Never skip RED phase (failing test must exist before implementation)
- Never defer tests to "later" -- TDD means tests first
## Scope Discipline
- If implementation requires >3 file changes, flag for scope review
- Architectural choices require user approval unless pre-approved in plan
- New dependencies require user approval
## When to Use
- Every feature implementation in BUILD workflow
- Every bug fix in DEBUG workflow (regression test)
## Agents Used
- `component-builder` (primary consumer)
- `bug-investigator` (regression tests)
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