What problem does it solve? When an OpenSpec change plan evolves, its artifacts (proposal, design, specs, tasks) drift out of sync. This Skill revises existing planning artifacts and reconciles them against one another so the change stays internally consistent, without touching implementation code. ## Core Features & Use Cases - Coherence Review: Reads all existing artifacts of a change and detects contradictions, gaps, and duplication in any direction, not just build order. - Guided Revision: Proposes edits one artifact at a time and writes only after user confirmation, using the artifact paths reported by openspec status. - Schema-Agnostic: Works with any OpenSpec workflow schema by reading artifact ids and paths from the CLI instead of hardcoding names. - Use Case: After deciding the design now uses a different storage approach, ask the agent to update the change; it revises the design doc, then reconciles the proposal, specs, and tasks to match. ## Quick Start Ask the agent to update the OpenSpec change named "add-dark-mode" so its design and specs reflect the new caching decision.