{
"schema_version": "lifeloop.v0.2",
"event": "session.started",
"event_id": "evt-session-1",
"adapter_id": "codex",
"adapter_version": "0.1.0",
"integration_mode": "native_hook",
"invocation_id": "inv-session-1",
"harness_session_id": "session-fixture-1",
"payload_refs": [],
"sequence": 1,
"idempotency_key": "idem-session-1"
}