II.
JournalEvent JSON
Structured · livejournal-event:langgraph-stream-checkpoints
LangGraph stream_mode=checkpoints json
Inspect the normalized record payload exactly as the atlas UI reads it.
{
"id": "journal-event:langgraph-stream-checkpoints",
"_kind": "JournalEvent",
"_file": "extensions/journal-events/langgraph-events.yaml",
"_cluster": "extensions",
"attributes": {
"displayName": "LangGraph stream_mode=checkpoints",
"eventName": "checkpoints",
"kind": "state-change",
"direction": "runtime-to-platform",
"terminal": false,
"triggerCondition": "Emitted whenever a checkpoint is written. Requires a checkpointer to be configured.",
"payloadSchema": {
"type": "checkpoints",
"fields": [
"ns",
"data"
]
},
"sourceCitation": "docs.langchain.com/oss/python/langgraph/streaming (stream_mode=checkpoints)"
},
"outgoingEdges": [
{
"from": "journal-event:langgraph-stream-checkpoints",
"to": "agent-runtime-impl:langgraph.runtime@current",
"kind": "journal_event_emitted_by",
"attributes": {}
}
],
"incomingEdges": []
}