What problem does it solve? Flawed implementation plans waste hours of development time when gaps, contradictions, or unverifiable assumptions surface mid-build. This Skill catches substance problems in a plan before any code is written, validating the plan against itself and against the actual codebase. ## Core Features & Use Cases - Multi-dimensional analysis: Scores plans across End-State Alignment, Lean Execution, Architectural Fitness, Blind Spots, and Plan Completeness with PASS/WARNING/FAIL verdicts. - Codebase grounding: Verifies file paths, symbols, and the riskiest plan claims against real code, including a blast-radius sweep for unlisted callers. - Interactive triage: Presents findings with severity and impact ratings, then walks through each one to apply fixes, accept risks, or dismiss issues, with resumable saved reports. - Use Case: After drafting an implementation plan for a database migration, run a review to discover that a 50M-row backfill lacks a rollback strategy, then apply the recommended fix directly to the plan. ## Quick Start Ask the assistant to review the implementation plan at context/changes/my-change/plan.md and triage any findings.