AGUI304

Severity: info · Group: State · Checked in: core · Since: 0.x

Message: STATE_SNAPSHOT replaces state previously built from {deltaCount} delta(s)

Spec grounding

This event is typically sent at the beginning of an interaction or when synchronization is needed.

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

Example

A violating stream from the corpus (spec/fixtures/invalid/AGUI304-midrun-snapshot-discards-deltas):

{"type":"RUN_STARTED","threadId":"thread_001","runId":"run_001","timestamp":1755300017400}
{"type":"STATE_SNAPSHOT","snapshot":{"a":1},"timestamp":1755300017500}
{"type":"STATE_DELTA","delta":[{"op":"replace","path":"/a","value":2}],"timestamp":1755300017600}
{"type":"STATE_SNAPSHOT","snapshot":{"a":99},"timestamp":1755300017700}
{"type":"RUN_FINISHED","threadId":"thread_001","runId":"run_001","outcome":{"type":"success"},"timestamp":1755300017800}

Expected findings:

• info AGUI304 at event 3 — STATE_SNAPSHOT replaces state previously built from 1 delta(s)