review-driven-development

English

A Codex custom skill for review-driven development: requirements → source/file analysis → critical subagents → TODOs → TDD validation → independent review → documentation → improvement loop.

한국어 문서는 README.ko.md를 참고하세요.

Why this exists

Codex can implement quickly, but complex research or engineering work often fails because the agent skips one of the boring parts: clarifying assumptions, reusing existing code safely, testing the actual TODO, recording review evidence, or updating documentation. review-driven-development packages those steps into a repeatable skill workflow.

The skill is intentionally conservative:

• It asks first-run questions and stores project defaults.
• It analyzes text, Markdown, source files, tests, and data files before planning.
• It uses critical-only subagents for debate, validation, and improvement.
• It executes one TODO at a time.
• It refuses to mark a TODO complete without validation evidence, independent review evidence, and documentation status.

Features

Area	What is included
Skill entrypoint	skills/review-driven-development/SKILL.md
Persistent state	.codex/review-driven-development/profile.md, defaults.json, ledgers
Requirement analysis	Language/method/code-reuse options with tradeoffs
Source/file analysis	Markdown, README, AGENTS.md, source, tests, build files, CSV/data files
Critical subagents	Pre-plan, validation, and improvement brief generation
TODO lifecycle	Append-only TODO ledger with one active TODO rule
Validation	Dry-run and executed quality-gate reports for test/lint/build/eval
Documentation gate	README/docs/ADR/changelog/implementation-log checks
External skill policy	Official/community skill URLs and trust policy
Tests	self_test.py and pytest smoke workflow tests

Repository layout

.
├── README.md
├── README.ko.md
├── README.en.md
├── VALIDATION.md
├── REVIEW_NOTES.md
├── external-skills.json
├── skills/
│   └── review-driven-development/
│       ├── SKILL.md
│       ├── agents/openai.yaml
│       ├── references/
│       └── scripts/
├── tests/
│   └── test_smoke_workflow.py
├── docs/
│   └── github-setup.md
└── .github/
    ├── workflows/ci.yml
    ├── dependabot.yml
    ├── ISSUE_TEMPLATE/
    └── PULL_REQUEST_TEMPLATE.md

Requirements

• Python 3.10+
• pytest for the test suite
• Codex environment that supports custom skills
• Optional: GitHub CLI (gh) if you use PR/comment workflows

Install test dependency locally:

python -m pip install -U pip pytest

Install as a Codex skill

Option A: repository-local install

Use this when you want the skill to apply only to one repository.

mkdir -p .agents/skills
cp -R skills/review-driven-development .agents/skills/review-driven-development
python .agents/skills/review-driven-development/scripts/validate_skill.py \
  --skill-dir .agents/skills/review-driven-development

Option B: user-local install

Use this when you want the skill available across repositories.

mkdir -p ~/.agents/skills
cp -R skills/review-driven-development ~/.agents/skills/review-driven-development
python ~/.agents/skills/review-driven-development/scripts/validate_skill.py \
  --skill-dir ~/.agents/skills/review-driven-development

Option C: helper-based install

python skills/review-driven-development/scripts/skill_registration.py \
  --repo-root . \
  --scope repo \
  --overwrite

Then open Codex in the target repository and confirm the skill appears:

/skills

Invoke it explicitly:

Use $review-driven-development for this requirement.

Quick start

Run the local validation suite first:

python -m compileall -q -f skills/review-driven-development/scripts
python skills/review-driven-development/scripts/validate_skill.py \
  --skill-dir skills/review-driven-development
python skills/review-driven-development/scripts/self_test.py
pytest -q

Expected result:

validate_skill.py: ok True
self_test.py: ok true
pytest: 11 passed

Create project state:

python skills/review-driven-development/scripts/rdd_state.py --root . ensure
python skills/review-driven-development/scripts/rdd_state.py --root . init-defaults \
  --answers "English docs, Korean responses, TDD-first, review then reuse existing code"

Build a project inventory:

python skills/review-driven-development/scripts/context_inventory.py --root . --save --summary

Create or start a TODO:

python skills/review-driven-development/scripts/todo_manager.py --root . create \
  "Add workflow smoke test" \
  --acceptance "pytest passes" \
  --risk medium

python skills/review-driven-development/scripts/todo_manager.py --root . start-next

Run quality gates:

python skills/review-driven-development/scripts/quality_gate.py \
  --root . \
  --todo-id RDD-T-00000001 \
  --kinds test,lint,build \
  --record-todo-evidence

For real execution, configure commands first:

{
  "test": ["pytest -q"],
  "lint": [],
  "build": [],
  "eval": []
}

Save it to:

.codex/review-driven-development/commands.json

Then run:

python skills/review-driven-development/scripts/quality_gate.py \
  --root . \
  --todo-id RDD-T-00000001 \
  --kinds test,lint,build \
  --execute \
  --record-todo-evidence

Record independent review and documentation status:

python skills/review-driven-development/scripts/todo_manager.py --root . review \
  RDD-T-00000001 \
  --summary "Independent validation completed; no blocker/high finding remains."

python skills/review-driven-development/scripts/todo_manager.py --root . docs \
  RDD-T-00000001 \
  updated \
  --target README.md \
  --target .codex/review-driven-development/implementation-log.md

Complete the TODO only after gates are satisfied:

python skills/review-driven-development/scripts/todo_manager.py --root . complete RDD-T-00000001

How it works

flowchart TD
  A[Requirement / files / docs / data] --> B[First-run profile + defaults]
  B --> C[Context inventory]
  C --> D[Critical-only subagent briefs]
  D --> E[Main-agent decisions]
  E --> F[Accepted findings become TODOs]
  F --> G[One TODO in progress]
  G --> H[TDD / quality gate]
  H --> I[Independent review evidence]
  I --> J[Documentation status]
  J --> K{Completion gate}
  K -->|pass| L[Completed TODO]
  K -->|fail| M[Fix / debug / update TODO]
  L --> N[Improvement critique]
  N --> F

Loading

State files

The skill stores project-local state under:

.codex/review-driven-development/
├── profile.md
├── defaults.json
├── todos.jsonl
├── critic-findings.jsonl
├── decision-log.md
├── review-ledger.md
├── implementation-log.md
├── context-inventory.json
└── validation-reports/

Completion gate

A TODO cannot be completed unless these are true:

1. Acceptance criteria exist.
2. Validation evidence exists.
3. If real quality-gate commands are configured, passing executed evidence exists.
4. Independent review evidence exists.
5. Documentation status is updated or not_needed.
6. No unresolved blocker/high review finding remains.

External skills

External skills are listed in:

external-skills.json
skills/review-driven-development/references/external-skills.md
skills/review-driven-development/references/external-skill-links.md

Recommended priority:

1. Official OpenAI skills: define-goal, gh-address-comments, openai-docs
2. Engineering workflow skills: source-driven-development, planning-and-task-breakdown, incremental-implementation, test-driven-development, code-review-and-quality, documentation-and-adrs
3. Fallback to this repository's references/ and scripts/ if an external skill is unavailable

Community skills should be reviewed before enabling scripts, hooks, or permissions.

GitHub setup

This repository includes GitHub-ready defaults:

.github/workflows/ci.yml
.github/dependabot.yml
.github/PULL_REQUEST_TEMPLATE.md
.github/ISSUE_TEMPLATE/*.yml
.github/CODEOWNERS
CONTRIBUTING.md
SECURITY.md
SUPPORT.md
CODE_OF_CONDUCT.md

Before publishing, replace placeholders:

grep -R "YOUR_GITHUB_USERNAME" -n .
grep -R "@YOUR_GITHUB_USERNAME" -n .

Recommended topics:

codex skill agentic-workflow tdd code-review automation developer-tools python

See docs/github-setup.md and GITHUB_UPLOAD_CHECKLIST.md.

Development

python -m pip install -U pip pytest
python -m compileall -q -f skills/review-driven-development/scripts
python skills/review-driven-development/scripts/validate_skill.py --skill-dir skills/review-driven-development
python skills/review-driven-development/scripts/self_test.py
pytest -q

Contributing

See CONTRIBUTING.md. Keep changes small, preserve the critical-only subagent contract, and update tests when changing workflow gates.

Security

See SECURITY.md. Do not store secrets in .codex/review-driven-development/ state files.

License

No open-source license has been selected yet. Add a LICENSE file before publishing as an open-source project.

한국어

한국어 전체 문서는 README.ko.md를 참고하세요. 이 프로젝트는 요구사항 분석, 비판 전용 subagent, TODO 단위 TDD 검증, 독립 review, 문서화를 반복하는 Codex custom skill입니다.