create-implementation-plan

What problem does it solve? Writing implementation plans that both humans and AI agents can execute consistently is hard—plans often lack structure, contain ambiguous tasks, or use duplicate identifiers that break automated parsing. This Skill produces deterministic, machine-readable implementation plan files with a strict template and validation rules. ## Core Features & Use Cases - Standardized Plan Template: Enforces a mandatory Markdown structure with front matter, requirements, phased tasks, dependencies, risks, and testing sections. - Unique Identifier System: Uses prefixed identifiers (REQ-, TASK-, GOAL-, DEP-, etc.) with shell-based validation checks to guarantee each identifier is declared exactly once. - AI-Executable Output: Tasks include specific file paths, function names, and measurable completion criteria so autonomous agents can execute phases without human interpretation. - Use Case: When planning a package upgrade or new feature, ask for an implementation plan and receive a /plan/upgrade-auth-module-1.md file with phased task tables, status badges, and verifiable completion criteria. ## Quick Start Create an implementation plan for upgrading the authentication module to support OAuth2 token refresh.