What problem does it solve? Finalizing a completed change in an OpenSpec-driven workflow involves several manual checks—verifying artifacts, counting unfinished tasks, syncing delta specs, and moving directories—which are easy to skip or perform inconsistently. ## Core Features & Use Cases - Completion Verification: Checks artifact status via openspec status --json and counts incomplete tasks in tasks.md, warning the user before archiving unfinished work. - Delta Spec Sync Assessment: Compares delta specs against main specs and offers to sync changes before archiving. - Safe Archiving: Moves the change directory into openspec/changes/archive/ with a date-prefixed name, failing safely if the target already exists. - Use Case: After finishing implementation of a feature change, ask the assistant to archive it; the skill prompts you to pick the change, warns about any incomplete tasks, optionally syncs specs, and archives the change with a dated folder name. ## Quick Start Archive the completed OpenSpec change for the feature I just finished implementing.