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 a dated archive. This Skill automates that entire finalization sequence with the openspec CLI. ## Core Features & Use Cases - Change selection and validation: Resolves the target change from user input or context, checks artifact completion via openspec status --json, and counts incomplete tasks in tasks.md. - Delta spec sync assessment: Compares delta specs against main specs, summarizes pending adds/modifications/removals/renames, and optionally runs an inline sync with verification before archiving. - Dated archival: Moves the change directory into an archive/ folder with a YYYY-MM-DD- prefix, preventing duplicate archive targets. - Use Case: After finishing implementation of a user-auth change, ask the assistant to archive it; the Skill verifies all artifacts and tasks, syncs the delta specs into the main specs, and moves the change into the archive with a summary report. ## Quick Start Ask the assistant to archive the completed change named add-user-auth using the openspec archive workflow.