Module io 

Typed models of the muse exec --json JSONL event stream.

Every stdout line is one MuseRecord — an event-sourced journal envelope with a lazily-typed payload. The envelope is fully typed; the payload stays raw JSON on the record (so round-trips are byte-faithful and unknown future payload types survive) and is lifted into a MusePayload on demand via MuseRecord::typed_payload.

Shapes in this module are derived from captured real output of Muse Code (see test_cases/*.jsonl), not from documentation — the wire is the contract. Payload types not yet observed (the journal also records approvals, edits, and subagent lifecycle under a live provider) deserialize as MusePayload::Unknown rather than failing.

Structs

CommandAccepted

runtime.command.accepted — the runtime took ownership of a submitted command (command_kind, e.g. turn.submit).

ModelConfigured

run.model.configured — which model/profile/provider the run resolved to (live providers only; the echo provider never emits it).

MuseRecord

One line of the muse exec --json stream: the journal envelope.

RunOutputDelta

run.output.delta — streamed model/agent output text.

RunStarted

run.lifecycle.started

RunTerminal

run.terminal.* — the run reached a terminal state. terminal carries the state (completed observed); text the final output; reason is populated on abnormal endings.

SessionRunLinked

session.run.linked — a run stream was attached to the session.

StreamRef

Reference to a journal stream.

TaskLifecycle

task.lifecycle.* — one step in a task’s lifecycle state machine.

TaskStreamLinked

task.stream.linked — a task stream was attached to a run.

ToolResult

tool.result — outcome of one tool invocation (live providers only).

TurnInputUser

turn.input.user — the user prompt as the runtime recorded it.

Enums

Durability

Whether the record survives restart/replay.

MusePayload

Typed payload of a MuseRecord, discriminated by payload_type.

RecordType

Journal record classes.

StreamKind

Journal stream classes.

TaskLifecycleEvent

The event member of TaskLifecycle, tagged by kind.