What problem does it solve? Projects built by fast-moving AI agents often skip planning, specification, and verification, leaving no audit trail. This Skill enforces the AI-native SDLC by checking that every project commits six artifacts — intent, spec, plan, verification, launch checklist, and incident log — to git, so each stage of work is documented and reviewable. ## Core Features & Use Cases - Six-stage chain check: Verifies the presence of intent.md, spec.md, plan.md, VERIFICATION.md, LAUNCH-CHECKLIST.md, and INCIDENTS.md, accepting legacy filenames like Requirements.md or Proposed Plan.md as aliases. - Git commit verification: Confirms each artifact is tracked by git, since an uncommitted local file is not an audit trail. - Grandfathering ratchet: A baseline file exempts pre-existing projects from blocking while requiring all new projects to comply; healed projects are removed from the list permanently. - Use Case: Before pushing a new project, run the checker to confirm the intent, spec, and plan exist and are committed; the gate exits 1 and names the missing stage if the chain is broken. ## Quick Start Run the sdlc-chain checker on my project to verify its intent, spec, plan, verification, launch, and incident artifacts are all committed to git.