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 the archive with a correct date prefix. 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, warning before archiving unfinished work. - Delta Spec Sync Assessment: Compares delta specs against main specs, optionally runs the openspec-sync-specs merge inline, and verifies the result before archiving. - Store-Aware Archiving: Supports registered OpenSpec stores via --store <id>, creates the archive directory, applies YYYY-MM-DD- date prefixes, and prevents duplicate archive targets. - Use Case: After finishing implementation of a change like add-codex-cli-support, ask the assistant to archive it; the Skill validates completion, syncs specs if needed, moves the change into changes/archive/, and prints a summary. ## Quick Start Ask the assistant to archive the completed OpenSpec change named add-codex-cli-support and confirm any warnings about incomplete tasks.