What problem does it solve? Turning a vague product idea into a buildable plan is hard, and long multi-session builds lose track of progress between sessions. This Skill converts a product brief, research brief, or existing codebase into a detailed phased roadmap, then executes that roadmap autonomously — committing at phase boundaries, deploying, and resuming exactly where it left off. ## Core Features & Use Cases - Roadmap Generation: Produces a complete delivery blueprint with stack decisions, full data model, per-phase task checklists, schema evolution maps, and API surface maps written to docs/ROADMAP.md. - Autonomous Execution Modes: Supports plan, start, resume, and status modes — start builds phase by phase without pausing, resume picks up from the first unchecked task, and status reports progress per phase. - Progress Tracking in the Roadmap: Completed phases and tasks are marked directly in ROADMAP.md with commit hashes, replacing separate session-handoff files. - Use Case: You describe a note-taking PWA on Cloudflare. The Skill designs the full schema, plans six deployable phases, then builds Phase 1 (auth, CRUD, deploy), commits, deploys, and continues through subsequent phases until done or blocked. ## Quick Start Ask the agent to plan a roadmap for your app idea and then start building it phase by phase.