Tablekeeper: A BAND-Built Booking Service

Tablekeeper is a restaurant reservation service built through a three-agent software development workflow in BAND Desktop. The Coordinator assigns requirements and collects evidence, the Implementer builds and commits the service, and the Reviewer independently checks the implementation and reports actionable findings. Our submission covers Tablekeeper Stages 1 and 2. It includes a reservation API and a browser interface for restaurant availability, account signup and login, booking confirmation, reservation lookup, and cancellation. It also supports approved combinations of two tables and recovery when a booking succeeds but its response is lost. The team used Git commits, Docker containers, and the official evaluation harness. Stage 1 passed all 120 shipped checks in isolated mode. The BAND team reported independent acceptance of Stage 2 after review identified an incomplete-response handling issue and the Implementer corrected it. The run experienced usage-limit interruptions and runtime configuration recovery. Human resume messages and a later scope reduction to Stages 1–2 are disclosed rather than presented as an uninterrupted autonomous run. Stages 3 and 4 are not claimed. Passing the shipped checks does not guarantee passing the organizers’ additional tests.