What problem does it solve? Turning a written implementation plan into completed code often fails because steps get skipped, verifications are ignored, or blockers are silently worked around. This Skill enforces a disciplined execution loop: load the plan, review it critically, execute each task with its specified verifications, and stop to ask when blocked. ## Core Features & Use Cases - Critical Plan Review: Reads the plan file first and raises concerns with the user before writing any code. - Step-by-Step Task Execution: Marks tasks in progress, follows bite-sized steps exactly, runs specified verifications, and marks tasks completed. - Structured Blocker Handling: Stops immediately on missing dependencies, failing tests, or unclear instructions and presents options via compose:ask instead of guessing. - Use Case: After drafting a multi-step refactoring plan, hand it to this Skill to implement each task in an isolated worktree, verify every change, and produce a final report through compose:report before merging. ## Quick Start Execute the implementation plan in plan.md using the compose:execute skill, verifying each task and stopping to ask if anything is blocked.