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turnstone/docs
Patrick Buckley 0d52b63b50 feat(coordinator): nudge a coordinator that goes idle holding unfinished work
Two nudge classes can fire from one IDLE event, tasks first, each
asserting only its own domain.

idle_tasks (advice) fires when open (pending/in_progress) tasks
exist. The body is a counts opener, the open task ids with statuses,
and typed branches that each end in a runnable tasks(...) or
wait_for_workstream(...) call populated with real server-minted ids.
Everything it says about children is governed by one observed fact:
live children present adds the caveat sentence and the
blocked-on-a-child branch; affirmatively none says nothing about
children at all. Any needs_user row parks the class entirely — at the
fire gate and the drain predicate — because with no task graph an
open task may be gated on a parked one's unanswered question; the
operator's answer is the re-arm. Gated on memory.nudges and on the
persona actually exposing the tasks tool; carries the per-class
cooldown as well as the per-bracket cap. The tasks tool itself gains
the needs_user status and a note field — the typed escalation the
body's branches point at.

idle_children (liveness) fires when children are in a live state —
the wake that lets an idle coordinator collect a finished child's
results. The body is a roster of workstream id prefixes and states,
never names: a child's name is model-authored text and does not enter
a system turn. Cap-only and cooldown-free by design, not gated on
memory.nudges, and it survives an operator Stop.

Fail-closed, event-wide: if any storage read fails while the observer
handles an IDLE event, neither nudge is queued and neither cap is
charged. Both paths run as side-effect-free plans; the commit tail is
storage-free, so no read can fail past the veto point; both drain
predicates drop on a failed read. A path's own fault (a generic
raise) still costs only that path's fire, so one class's bug cannot
strand the other.

Task text is stored verbatim and projected per audience at render:
the model-facing projection deletes angle brackets, the operator
projection keeps them, and both strip newlines and bidi/zero-width
runs. Idle cards render what the model was told, formatted for the
operator, never augmented with content the model did not receive.
2026-07-29 22:11:38 -07:00
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