session/reasoningEffortChanged

A durable session-default reasoning-effort change took effect (ADR 31255 D1).

Parameters

Type: SessionReasoningEffortChangedParams

session/reasoningEffortChanged params: a durable reasoning-effort reconfigure record landed. Replace wholesale, latest wins; the snapshot carries the latest value.

Field	Type	Stability	Presence	Description
reasoningEffort	ReasoningEffort		required	The new session default: the closed eight-string tier vocabulary, spelled identically.
sessionId	string		required	The owning session.
source	ReasoningEffortChangeSource		required	What drove the change.
sourceRange	SourceRange		required	The durable records this event folded from.
viewCursor	string		required	Opaque, strictly monotonic view cursor.

Source

schema/msp/experimental/msp.schema.json#/notifications/session~2FreasoningEffortChanged

{
  "description": "A durable session-default reasoning-effort change took effect (ADR 31255 D1).",
  "params": {
    "$ref": "#/$defs/SessionReasoningEffortChangedParams"
  }
}