What problem does it solve? Finalizing a completed change in the openspec workflow requires checking artifact status, task completion, and spec synchronization before moving files into an archive, which is error-prone when done manually. ## Core Features & Use Cases - Completion Verification: Runs openspec status --json to check artifact completion and reads tasks.md to count incomplete tasks before archiving. - Delta Spec Sync Assessment: Compares delta specs against main specs and offers to sync changes via the openspec-sync-specs skill before archiving. - Safe Archiving: 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 confirm any incomplete artifacts or tasks, optionally syncs specs, and produces a summary of the archived change. ## Quick Start Archive the completed openspec change named add-user-auth and sync its delta specs to the main specs first.