What problem does it solve? Engineering plans often hide scope creep, missing test coverage, and unexamined tradeoffs until implementation begins. This Skill forces a structured, engineering-manager-style review of any plan before code changes, surfacing issues section by section with opinionated recommendations. ## Core Features & Use Cases - Scope Challenge (Step 0): Identifies existing code that already solves sub-problems, flags overbuilt plans, and offers scope reduction, big-change, or small-change review modes. - Four Review Sections: Walks through architecture, code quality, test coverage (with a mandatory test diagram), and performance, asking one interactive question per issue with lettered options and a stated recommendation. - Required Outputs: Produces "NOT in scope" and "What already exists" sections, failure-mode analysis, TODOS.md proposals, and a completion summary. - Use Case: Before implementing a multi-file feature touching models, services, and tests, run this review to catch DRY violations, missing edge-case handling, and untested failure modes interactively. ## Quick Start Ask the assistant to review your implementation plan using the plan-eng-review skill before writing any code.
