What problem does it solve? Writing implementation plans without sufficient codebase research or requirement clarification leads to costly rework and missed edge cases. This Skill guides an interactive, iterative planning process that grounds every plan in verified codebase facts and explicit user decisions. ## Core Features & Use Cases - Adaptive Questioning: Scales the number and focus of clarifying questions based on task complexity (LOW/MEDIUM/HIGH) and upstream artifacts like frame briefs and research docs, avoiding redundant questions. - Parallel Codebase Research: Spawns Explore and general-purpose sub-agents to map relevant files, patterns, and conventions before writing the plan. - Structured Plan Output: Writes a phased plan to context/changes/<change-id>/plan.md with automated and manual success criteria, plus a two-page plan brief and a machine-readable Progress section. - Use Case: Given a ticket to add OAuth login, the Skill reads prior research, asks targeted architecture and edge-case questions with recommended options, then produces a multi-phase plan with verification steps and progress checkboxes. ## Quick Start Ask the AI to create a detailed implementation plan for your task, optionally passing a change-id or path to an existing research or frame document.