What problem does it solve? Flawed implementation plans cause wasted hours of rework when contradictions, missing phases, or unverified assumptions surface mid-build. This Skill catches substance problems in a plan before any code is written. ## Core Features & Use Cases - Multi-dimensional plan analysis: Scores plans across End-State Alignment, Lean Execution, Architectural Fitness, Blind Spots, and Plan Completeness with severity- and impact-rated findings. - Codebase grounding and verification: Checks that referenced file paths and symbols exist, and launches a sub-agent to verify the riskiest claims against actual code with file:line evidence. - Interactive triage workflow: Presents findings with concrete fix options, walks through decisions one by one, applies minimal plan edits, and supports resuming from a saved report. - Use Case: After drafting a plan with /10x-plan, run this Skill to validate that success criteria map to phases, API contracts are consistent, and rollback paths exist before starting implementation. ## Quick Start Ask the assistant to review the plan at context/changes/my-change/plan.md and triage any findings it reports.