git:20260507.8dfdcb4 to v1.0.0

---

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)"

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. **You may not write more of a test than is sufficient to fail**

3. **You may not write more production code than is sufficient to pass**

## TDD Cycle

### RED Phase

1. Write a test that captures exactly one acceptance criterion

2. Run the test -- it MUST fail

3. Verify it fails for the RIGHT reason (not a syntax error)

4. Commit: `test: add failing test for [criterion]`

### GREEN Phase

1. Write the MINIMUM code to make the test pass

2. Run the test -- it MUST pass

3. Verify only the target test turned green (no side effects)

4. Commit: `feat: implement [criterion]`

### REFACTOR Phase

1. Clean up code while keeping ALL tests green

2. Remove duplication, improve naming, extract methods

3. Run full test suite -- ALL tests MUST pass

4. 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

1. **Git History Analysis**: Test files must appear in commits before implementation files

2. **Coverage Analysis**: New code must have >90% test coverage

3. **Commit Message Convention**: RED/GREEN/REFACTOR phases identifiable in messages