turn/modelAttemptStarted

A turn’s model attempt is starting: its model provider task recorded its opening status; observable mid-turn, non-terminal (ADR 68644-model-attempt-started D1).

Parameters

Type: TurnModelAttemptStartedParams

turn/modelAttemptStarted params: a turn’s model provider task recorded its opening status — one model attempt is starting (before the provider dials), retries and later model steps included. Clients raise their thinking state here, the point a switch-off TUI flips on model-task activity. Non-terminal: it never resolves a turn-wait. sourceRange cites the session stream’s mirror of the task-lifecycle record.

Field	Type	Stability	Presence	Description
sessionId	string		required	The owning session.
sourceRange	SourceRange		required	The durable record this event folded from (the session stream’s mirror of the model task’s opening status; first == last).
turnId	string		required	The running turn whose model attempt is starting.
viewCursor	string		required	Opaque, strictly monotonic view cursor.

Source

schema/msp/experimental/msp.schema.json#/notifications/turn~2FmodelAttemptStarted

{
  "description": "A turn's model attempt is starting: its model provider task recorded its opening status; observable mid-turn, non-terminal (ADR 68644-model-attempt-started D1).",
  "params": {
    "$ref": "#/$defs/TurnModelAttemptStartedParams"
  }
}