What problem does it solve? Turning an approved spec into executable work often produces vague plans with placeholders, missing file paths, and untestable steps. This Skill converts a spec into a detailed, vertical-slice implementation plan that an executor (human or AI) can follow with zero prior context. ## Core Features & Use Cases - Bite-sized TDD tasks: Breaks features into 2-5 minute steps following the write-failing-test, implement, verify, commit cycle. - No-placeholder enforcement: Requires real code, exact file paths, and runnable commands with expected output in every step. - Vertical slice ordering: Orders tasks by foundation, risk, dependencies, and quick wins instead of horizontal layers, with checkpoints between phases. - Use Case: After writing a spec for an SOS emergency feature in a Flutter app, generate a plan where Task 1 delivers a working end-to-end slice (UI + repository + backend POST + database insert) with actual Dart test code and flutter test commands. ## Quick Start Ask the AI to write an implementation plan for the approved spec in docs/specs, saved to docs/plans with a companion tasks todo file.