AGUI003

Severity: error · Group: Lifecycle · Checked in: core · Since: 0.x

Message: Run '{runId}' ended without RUN_FINISHED or RUN_ERROR

Spec grounding

Every run terminates with either RunFinished or RunError.

Source: https://docs.ag-ui.com/concepts/events#runfinished

Example

A violating stream from the corpus (spec/fixtures/invalid/AGUI003-run-never-terminated):

{"type":"RUN_STARTED","threadId":"thread_001","runId":"run_001","timestamp":1755300008600}
{"type":"TEXT_MESSAGE_START","messageId":"msg_001","role":"assistant","timestamp":1755300008700}
{"type":"TEXT_MESSAGE_CONTENT","messageId":"msg_001","delta":"This run just stops.","timestamp":1755300008800}
{"type":"TEXT_MESSAGE_END","messageId":"msg_001","timestamp":1755300008900}

Expected findings:

• error AGUI003 at stream — Run 'run_001' ended without RUN_FINISHED or RUN_ERROR