fix(voice): reset user away timer on final transcript

[rosetta-livekit-bot]

Summary

• Port Python core fix fix(core): reset user away timer on final STT transcript AGT-3149 agents#6478 so final STT transcripts refresh the user-away timer while both user and agent are listening.
• Preserve the existing away-to-listening recovery behavior for final transcripts.
• Add the corresponding Vitest coverage and a patch changeset for @livekit/agents.

Source diff coverage

Coverage classification

Source file	Classification	Target file	Notes
livekit-agents/livekit/agents/voice/agent_session.py	Ported	agents/src/voice/agent_session.ts	Mapped the Python _user_input_transcribed behavior to the JS _onUserInputTranscribed event handler. Final transcripts still move away users back to listening; when user and agent are both listening, final transcripts now refresh _setUserAwayTimer().
tests/test_agent_session.py	Adapted	agents/src/voice/agent_session.test.ts	Ported the Python test to Vitest/TypeScript by emitting user_input_transcribed events through the session event path and spying on the internal timer method. The cases match the source test: final transcript resets while listening, interim transcript does not, and final transcript while user is speaking does not.

No source files were not applicable.

Validation

• pnpm test agents/src/voice/agent_session.test.ts passed.
• pnpm test agents/src failed due existing/baseline agents/src/voice/amd.test.ts failures; rerunning pnpm test agents/src/voice/amd.test.ts independently produced the same 11 AMD classification/timing failures. The new agent session test passed in the full run.
• pnpm build passed.
• pnpm lint passed with existing warnings only.
• pnpm exec prettier --check agents/src/voice/agent_session.ts agents/src/voice/agent_session.test.ts .changeset/reset-user-away-final-transcript.md passed.
• cue-cli runtime validation passed with a temporary validation agent: final transcript events occurred at 5476 ms and 6175 ms; US_AWAY occurred at 7206 ms, after the second final transcript refreshed the away timer.

Infrastructure gaps

None.

---

Ported from livekit/agents#6478

Original PR description

VAD can miss speech while STT still emits a final transcript. In that case the user stays listening, so the away timer kept counting down and could fire despite recent STT activity. Observed from a user session where short utterance was ignored by the timer.

On a final transcript when the user is not already speaking, refresh user_away_timeout without changing user state. The existing away → listening recovery path is unchanged.

Made with Cursor

[changeset-bot]

🦋 Changeset detected

Latest commit: 2ec005e

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 37 packages

Name	Type
@livekit/agents	Patch
@livekit/agents-plugin-anam	Patch
@livekit/agents-plugin-anthropic	Patch
@livekit/agents-plugin-assemblyai	Patch
@livekit/agents-plugin-azure	Patch
@livekit/agents-plugin-baseten	Patch
@livekit/agents-plugin-bey	Patch
@livekit/agents-plugin-cartesia	Patch
@livekit/agents-plugin-cerebras	Patch
@livekit/agents-plugin-deepgram	Patch
@livekit/agents-plugin-did	Patch
@livekit/agents-plugin-elevenlabs	Patch
@livekit/agents-plugin-fishaudio	Patch
@livekit/agents-plugin-google	Patch
@livekit/agents-plugin-hedra	Patch
@livekit/agents-plugin-hume	Patch
@livekit/agents-plugin-inworld	Patch
@livekit/agents-plugin-lemonslice	Patch
@livekit/agents-plugin-liveavatar	Patch
@livekit/agents-plugin-livekit	Patch
@livekit/agents-plugin-minimax	Patch
@livekit/agents-plugin-mistral	Patch
@livekit/agents-plugin-mistralai	Patch
@livekit/agents-plugin-neuphonic	Patch
@livekit/agents-plugin-openai	Patch
@livekit/agents-plugin-perplexity	Patch
@livekit/agents-plugin-phonic	Patch
@livekit/agents-plugin-resemble	Patch
@livekit/agents-plugin-rime	Patch
@livekit/agents-plugin-runway	Patch
@livekit/agents-plugin-sarvam	Patch
@livekit/agents-plugin-silero	Patch
@livekit/agents-plugin-soniox	Patch
@livekit/agents-plugin-tavus	Patch
@livekit/agents-plugins-test	Patch
@livekit/agents-plugin-trugen	Patch
@livekit/agents-plugin-xai	Patch

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[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

View in Devin Review to see 1 additional finding.