What problem does it solve? Finalizing a completed change in an OpenSpec workflow involves several manual checks—verifying artifact completion, confirming tasks are done, syncing delta specs to main specs, and moving directories—which is error-prone when done by hand. ## Core Features & Use Cases - Guided Change Selection: Lists active changes via openspec list --json and prompts the user to pick one, never auto-selecting. - 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 the openspec-sync-specs workflow before archiving. - Safe Archiving: Moves the change directory to 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 everything is complete, syncs specs if needed, and archives with a dated folder name. ## Quick Start Ask the assistant to archive the completed OpenSpec change named "add-user-auth" and confirm any warnings about incomplete artifacts or tasks.