Released Agents JS @1.4.3

Agents
1

Patch Changes

  • Improve audio discard checks - #1504 (@rosetta-livekit-bot)

  • Add dynamic endpointing for voice turn handling. - #1475 (@rosetta-livekit-bot)

  • fix(stt): reflect active child in FallbackAdapter model/provider - #1515 (@julien-lottie)

    audio_recognition.refreshUserTurnSttAttributes reads these on every
    STT event to stamp gen_ai.request.model / gen_ai.provider.name
    on the user_turn span. With static wrapper labels, every span
    reported FallbackAdapter / livekit regardless of which provider
    actually transcribed — so a mid-turn fallover was invisible in
    traces. Track the elected child from both the streaming and
    recognize paths and surface its identifiers.

  • Add beta workflow InstructionParts exports. - #1500 (@rosetta-livekit-bot)

  • Add updateOptions support to inference LLM for live model swaps. - #1527 (@rosetta-livekit-bot)

  • fix audio resampler memory leak. - #1453 (@KrishnaShuk)

  • feat(agents): add modality-aware Instructions with audio/text variants - #1484 (@toubatbrian)

    Introduce a new Instructions class for system prompts that adapt to the
    user’s input modality. The pipeline now applies the matching variant before
    each LLM turn based on SpeechHandle.inputDetails.modality, and
    AgentSession.generateReply() and AgentSession.run() expose an
    inputModality option. Instructions.tpl supports JS-native prompt
    composition while preserving audio/text variants.

  • brianyin/agt-2866-delete-room-on-session-close - #1501 (@toubatbrian)

  • fix(agents): await realtime auto tool replies in RunResult - #1490 (@rosetta-livekit-bot)

  • Add support for the Rime Coda TTS model. - #1523 (@rosetta-livekit-bot)

  • feat(agents): add Speechmatics inference STT model options. - #1507 (@rosetta-livekit-bot)

  • feat(agents): add livekit-agents download-files command for Docker layer caching - #1511 (@davidzhao)

    Adds a standalone CLI (npx livekit-agents download-files) that discovers installed
    @livekit/agents-plugin-* packages and downloads their asset files without loading
    the user’s agent code.

  • fix(barge-in): suppress session-level barge-in errors. - #1513 (@rosetta-livekit-bot)