What problem does it solve? Finalizing a completed change in an OpenSpec workflow involves checking artifact status, verifying task completion, syncing delta specs, and moving directories safely. Doing this manually is error-prone and can leave specs out of sync or archives misnamed. ## Core Features & Use Cases - Completion Verification: Runs openspec status --json to check artifact completion and scans tasks.md for incomplete checklist items before archiving. - Delta Spec Sync Assessment: Compares delta specs against main specs and optionally triggers the openspec-sync-specs workflow before archiving. - Safe Archive Operation: Moves the change directory into a date-prefixed archive folder (YYYY-MM-DD-<name>) with collision detection and workspace-planning guardrails. - Use Case: After finishing implementation of a feature change, ask the assistant to archive it; the skill prompts you to select the change, warns about incomplete tasks, syncs specs if needed, and archives with a clear summary. ## Quick Start Archive the completed change 'add-user-auth' and sync its delta specs to the main specs.