What problem does it solve? Finalizing a completed change in an OpenSpec workflow involves several error-prone manual checks: confirming artifacts are done, verifying tasks are complete, syncing delta specs into main specs, and moving the change directory into an archive with a dated name. This Skill automates that entire finalization sequence through the openspec CLI. ## Core Features & Use Cases - Completion verification: Checks artifact status via openspec status --json and counts incomplete tasks in tasks.md before archiving, warning but not blocking on gaps. - Delta spec sync assessment: Compares delta specs against main specs, summarizes pending adds, modifications, removals, and renames, and optionally runs an inline sync with post-sync verification before archiving. - Dated archival: Moves the change directory into an archive folder with a YYYY-MM-DD- prefixed name, preserving .openspec.yaml and refusing to overwrite existing archives. - Use Case: After finishing implementation of a user-auth change, ask the agent to archive it; the Skill verifies all artifacts and tasks, syncs the delta specs into the main specs, and moves the change to changes/archive/2025-01-15-user-auth/. ## Quick Start Archive the completed change named add-login-flow and sync its delta specs into the main specs before moving it.