What problem does it solve? After a multi-stage design is finalized, teams still need concrete, executable implementation plans. This Skill converts all completed stage designs into ordered, TDD-oriented plan files with explicit tasks, steps, tests, and verification commands, eliminating vague or transitional planning work. ## Core Features & Use Cases - Stage-by-Stage Plan Generation: Produces one dated plan file per stage under docs/plans/, following a fixed Stage → Task Group → Task → Step hierarchy with exact file paths, function signatures, and test scenarios. - Final-State-First Planning: Forbids transitional compatibility code such as adapters, dual reads/writes, feature flags, or temporary schemas, so plans target the final design directly. - Built-in Review and Handoff: Runs a self-check plus a structured plan-document review, updates the brainstorming index, then hands all plans to smart-exec-plan for continuous execution. - Use Case: After grill-with-docs finishes three stage designs for a feature, invoke this Skill to produce three reviewed implementation plans with TDD steps and verified build/test commands, ready for uninterrupted execution. ## Quick Start Use the writing-plans skill to generate implementation plans for all completed stage designs in docs/grill and record them in the brainstorming index.