CONTRIBUTING.md

Contributing

• Keep the 13-stage routing in AGENTS.md and docs/13-stage-routing.md in sync.
• Own skills live in .codex/skills/; third-party skills are never vendored here.
• Verify every skill in .codex/skills/ still has a valid SKILL.md frontmatter before submitting a PR.
• Do not add real API keys, research data, or private records.