What problem does it solve? When a plan changes mid-work, OpenSpec change artifacts (proposals, designs, specs, tasks) drift out of sync with each other. This Skill revises the existing artifacts of a change and reconciles them so the plan stays internally consistent, without touching any implementation code. ## Core Features & Use Cases - Coherence Review: Reads all existing artifacts of a change and detects contradictions, gaps, and duplication across them in any direction. - Confirmed Revisions: Proposes each edit, explains why, and writes only after user confirmation, one artifact at a time. - Schema-Agnostic Operation: Uses artifact ids and paths reported by openspec status rather than hardcoded names, so custom schemas work unchanged. - Use Case: After deciding the design should use a message queue instead of direct API calls, ask the Skill to update the change; it revises the design artifact and reconciles the proposal, specs, and tasks to match. ## Quick Start Ask the assistant to update the OpenSpec change named add-caching so its design and specs reflect the new decision to use Redis.