What problem does it solve? Finalizing a completed change in an OpenSpec-driven workflow involves several manual checks—verifying artifact completion, confirming tasks are done, syncing delta specs into main specs, and moving the change directory into a dated archive. This Skill automates that entire finalization sequence so nothing is archived prematurely or left out of sync. ## Core Features & Use Cases - Guided change selection: Lists active changes via openspec list --json and prompts the user to pick one instead of guessing. - Completion verification: Checks artifact status with openspec status --json and counts incomplete tasks in tasks.md, warning before proceeding. - Delta spec sync assessment: Compares delta specs against main specs and optionally triggers a sync before archiving. - Dated archival: Moves the change into openspec/changes/archive/YYYY-MM-DD-<name> with collision detection. - Use Case: After finishing implementation of a feature change, ask the assistant to archive it; the Skill verifies all artifacts and tasks, offers to sync specs, and produces a dated archive entry with a summary report. ## Quick Start Archive the completed change named add-user-auth and sync its delta specs before moving it to the archive.