kanban-pro(vider)

A real kanban served over MCP, so registering it once turns every agent session into a worker on one shared pipeline. Underneath the board sit the three things that actually hold on an unattended run: a state machine per board, so a card moves only along declared transitions and an illegal move is refused rather than logged; gates, so a card cannot advance until verification that someone else specified has been recorded against it; and a leased work queue, so a crashed agent's claim expires and its card comes back.

Every write is stamped with the agent that made it, overrides are allowed but never silent, and an append-only change feed makes the board the source of truth rather than a transcript. The board dispatches itself: workers wake on the feed, a busy project's cards queue and drain on release, and a finished card gets its retrospective.