sdlc

Turns an idea into shipped, verified code through six stages. Each stage produces one markdown artifact in sdlc/, committed to git. The artifact is the handoff: no stage starts until the previous one's artifact exists and the user has accepted it.

Adapted from Anthropic's AI-Native SDLC Playbook, trimmed for a solo developer. The org-scale layer (separation of duties, policy owners, leading/lagging metrics) lives in references/governance.md and is opt-in.

When to Use

Activate when the user asks to:

• Capture an idea, feature, or bug as a written intent before building
• Turn an intent into a requirements/design spec
• Plan an implementation before writing code
• Set up a verification loop so changes check themselves before review
• Define review policy (REVIEW.md) or run policy-driven review
• Add regression evals for agent configuration (CLAUDE.md, skills, hooks)
• Wire production metrics back into the planning loop

Also activate when a repo already has an sdlc/ directory and the user references an artifact in it.