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 a complete, bite-sized implementation plan that an engineer with zero project context can execute task by task. ## Core Features & Use Cases - Structured Plan Generation: Creates a plan document with a mandatory header (goal, architecture, tech stack, spec reference, global constraints) saved to docs/superpowers/plans/YYYY-MM-DD-<feature-name>.md. - Bite-Sized TDD Tasks: Breaks work into tasks with exact file paths, interface contracts (consumes/produces), and 2-5 minute steps following the failing-test, implement, verify, commit cycle. - Placeholder Prevention & Self-Review: Enforces a no-placeholder policy (no TODOs or vague steps) and runs a self-review checklist covering spec coverage, placeholder scan, and type consistency. - Execution Handoff: Offers subagent-driven or inline execution after the plan is saved, with a reviewer prompt template for validating the finished plan. - Use Case: Given a feature spec for a new API endpoint, produce a plan where each task lists exact files to create or modify, real test code, run commands with expected output, and commit commands. ## Quick Start Ask the AI to use the writing-plans skill to create an implementation plan from your spec document before writing any code.