Create a new coordination task for an implementer (e.g. OpenCode) to pick up. Starts in status 'pending'.

List coordination tasks, optionally filtered by status, assignee, creator, or tag. Returns a lightweight summary per task (no history[], plus a computed idleSeconds while claimed/in_progress) so repeated polling stays cheap — call get_task for the full record including history.

Fetch full details for a single task by id, including its status, version, and history.

Full-text search over task titles, descriptions, and tags (case-insensitive substring match). Returns the same lightweight summary shape as list_tasks (no history[]) — call get_task for the full record.

Claim a pending task as the implementer working on it. Fails if the task was pre-assigned to someone else. Returns the task summary (no history[] — call get_task for that).

Atomically claim the first eligible pending task (optionally filtered by tag) instead of a separate list_tasks + claim_task round trip. Skips tasks pre-assigned to someone else. Returns null if no eligible pending task is available, otherwise a task summary (no history[] — call get_task for that).

Mark a claimed/in-progress/revision-requested task as completed and ready for the creator to review. Returns the task summary (no history[] — call get_task for that).

Cancel a task that is not already completed/approved/cancelled. Returns the task summary (no history[] — call get_task for that).

Reopen a cancelled/completed/approved task back to pending, clearing its assignee and prior progress so it can be re-claimed. Returns the task summary (no history[] — call get_task for that).

Approve a completed task (typically called by the creator/reviewer after checking the implementer's work). Returns the task summary (no history[] — call get_task for that).

Send a completed task back to the implementer for changes. Posts the feedback as a message on the task's thread. Returns the task summary (no history[] — call get_task for that).

Post a message to a task's conversation thread (e.g. clarifications, review feedback, status notes).

Fetch a task's conversation thread, optionally only messages after a given ISO timestamp.

Report progress (0-100, whole numbers) on a claimed/in-progress/revision-requested task. The first call in a claim or revision cycle automatically advances the task's status to 'in_progress'. Rejects tasks not currently open for work (pending, completed, approved, cancelled). Returns the current snapshot (no history[] — call get_progress for that).

Fetch the latest progress snapshot (and history) for a task. Returns null if no progress reported yet.

Block (polling, lock-free) until a task's status changes, or until timeout_seconds elapses — use instead of repeatedly calling get_task in a loop. Without until_status, returns as soon as status differs from its value at call time; with until_status, waits specifically for that status. Timing out is a normal result (timed_out: true), not an error — re-call to keep waiting.