What problem does it solve? Turning a spec or requirements document into an actionable implementation plan is error-prone: tasks end up too vague, placeholders slip in, and engineers without codebase context get stuck. This Skill produces complete, step-by-step implementation plans that an engineer with zero project context can execute. ## Core Features & Use Cases - Bite-Sized Task Decomposition: Breaks work into 2-5 minute steps following TDD (failing test, minimal implementation, verification, commit) with exact file paths and commands. - No-Placeholder Enforcement: Requires complete code in every step and bans vague instructions like "add error handling" or "TBD". - Self-Review and Handoff: Includes a spec-coverage, placeholder, and type-consistency checklist, plus a reviewer subagent prompt template and PREVC execution handoff. - Use Case: Given a feature spec for a new API endpoint, produce a dated plan document in docs/superpowers/plans/ with checkbox tasks, exact test code, and expected command output for each step. ## Quick Start Ask the agent to use the writing-plans skill to turn your spec into a step-by-step TDD implementation plan saved under docs/superpowers/plans.