Onboard Project Discovery & Ledger Creation Analyze a brownfield codebase and create an initial continuity ledger. When to Use First time working in an existing project User says "onboard", "analyze this project", "get familiar with codebase" How to Use Spawn the onboard agent: Use the Task tool with subagent type: "onboard" and this prompt: Why an Agent? The onboard process: Requires multiple exploration steps Should not pollute main context with codebase dumps Returns a clean summary + creates the handoff Output Directories created: thoughts/shared/handoffs/<project / , .claude/ YAML handoff created (loaded automatically on session start) User has clear starting context Ready to begin work with full project awareness Notes This skill is for BROWNFIELD projects (existing code) For greenfield, use /create plan instead Handoff can be updated anytime with /create handoff