What problem does it solve? Turning approved requirements and design documents into an actionable, dependency-ordered implementation plan is error-prone manual work. This Skill automates Phase 3 of the DoFlow chain, producing a plan.md with a Constitution Check, task breakdown, and branch plan so implementation can start with clear ownership and file scoping. ## Core Features & Use Cases - Plan Generation: Converts requirement.md and design.md (plus specs.md IC-### interface contracts when present) into a structured plan.md with approach, research decisions, risks, and validation strategy. - Task Decomposition: Produces dependency-ordered tasks traced to user stories, with named owners, concrete file paths, and [P] parallel markers enabling write-set isolation during execution. - Constitution Check & Validation: Runs an advisory constitution gate and consistency validation, then records evidence, claims, and a workflow handoff for downstream stages. - Use Case: After finishing /do-design for a new feature, run /do-plan to get a task checklist that /do-execute-plan can execute with parallel-safe task scheduling. ## Quick Start Ask the AI to run /do-plan to create an implementation plan and task breakdown from the existing requirement.md and design.md for the current feature.