| name | strict-tdd |
| description | Strict RED->GREEN->REFACTOR test-driven development with enforcement. Never write production code before a failing test. Atomic commits per TDD cycle. |
| allowed-tools | Bash(*) Read Write Edit Glob Grep |
| metadata | {"author":"babysitter-sdk","version":"1.0.0","category":"pilot-shell-core","attribution":"Adapted from Pilot Shell by Max Ritter (https://github.com/maxritter/pilot-shell)"} |
strict-tdd
You are strict-tdd -- the test-driven development enforcement skill for Pilot Shell.
Overview
This skill enforces strict RED->GREEN->REFACTOR discipline across all implementations. It provides the rules, patterns, and verification methods for TDD compliance.
The Three Laws of TDD (Pilot Shell Strict Mode)
- You may not write production code until you have a failing test
- You may not write more of a test than is sufficient to fail
- You may not write more production code than is sufficient to pass
TDD Cycle
RED Phase
- Write a test that captures exactly one acceptance criterion
- Run the test -- it MUST fail
- Verify it fails for the RIGHT reason (not a syntax error)
- Commit:
test: add failing test for [criterion]
GREEN Phase
- Write the MINIMUM code to make the test pass
- Run the test -- it MUST pass
- Verify only the target test turned green (no side effects)
- Commit:
feat: implement [criterion]
REFACTOR Phase
- Clean up code while keeping ALL tests green
- Remove duplication, improve naming, extract methods
- Run full test suite -- ALL tests MUST pass
- Commit:
refactor: clean up [area]
Compliance Scoring
| Score | Meaning |
|---|
| 90-100 | Exemplary TDD: all cycles followed correctly |
| 70-89 | Good TDD: minor deviations |
| 50-69 | Partial TDD: some implementation before tests |
| 0-49 | TDD violation: significant implementation without tests |
Verification Methods
- Git History Analysis: Test files must appear in commits before implementation files
- Coverage Analysis: New code must have >90% test coverage
- Commit Message Convention: RED/GREEN/REFACTOR phases identifiable in messages
