What problem does it solve? Closing out engineering tasks in AI-OS requires several coordinated steps — updating task status, verifying CI results, running handover, and signaling the Architect when the queue is empty. This Skill automates that entire lifecycle so no step is forgotten after an E-## implementation. ## Core Features & Use Cases - Task Status Management: Marks completed E-## tasks as DONE through task-synchronizer-mcp with a required summary, refusing to close tasks with failing tests or unpassed gates. - CI Gate Enforcement: Checks the local CI status of HEAD before marking anything DONE, blocking completion when the commit is untested, failing, or only dirty-tested. - Handover & Queue Handoff: Runs the orchestrator handover to stamp implementation deltas for Architect review, then either continues with the next open task or emits a handoff signal back to the Architect when the queue is exhausted. - Use Case: After finishing an E-## implementation, invoke this Skill to verify CI passed, mark the task DONE, run handover, and automatically hand control back to the Architect if no tasks remain. ## Quick Start Mark the E-## task I just finished as DONE, run the handover, and tell me which task to work on next.