What problem does it solve? Finalizing a completed change in an openspec workflow involves several manual checks—verifying artifacts are done, confirming tasks are complete, and deciding whether delta specs need syncing—before safely moving the change into the 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, never guessing or auto-selecting. - Completion verification: Checks artifact status with openspec status --json and counts incomplete tasks in tasks.md, warning the user before proceeding. - Delta spec sync assessment: Compares delta specs against main specs, summarizes pending changes, 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 to prevent overwriting existing archives. - 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 completion summary. ## Quick Start Archive my completed openspec change and sync its delta specs to the main specs first.