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limited-spring-14213

02/23/2026, 1:08 AM

is there a way to tell which participant gets set as the main participant for the bot?

tall-airline-16756

02/23/2026, 1:08 AM

Thanks for reaching out, Daniel. I'm an AI assistant and I'm here to help. Give me a moment while I research this topic.

tall-airline-16756

02/23/2026, 1:08 AM

Thanks — I’m replying about which participant becomes the “main” (linked) participant for the bot and how to tell or change who that is. Short answer • By default, the first participant to join the room is set as the linked (main) participant. • You can read which participant is currently linked from the AgentSession’s

RoomIO

via

session.room_io.linked_participant

. How to identify the linked participant 1. After the session starts (Python example):

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participant = session.room_io.linked_participant

participant

will be the participant the agent is currently interacting with. Ways to set or change the linked participant • Set when starting the session: pass

participant_identity

RoomOptions

, e.g.:

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RoomOptions(participant_identity="user-123")

• Change dynamically at runtime: call `RoomIO.set_participant()`:

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await session.room_io.set_participant("user-456")

• Fix a specific participant by constructing

RoomIO

with a participant identity and starting it:

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room_io = RoomIO(session, room=ctx.room, participant="user-123")
await room_io.start()

That setup restricts the agent’s audio processing to that participant. If you want, tell me which SDK/language you’re using and whether you want the linked participant to be chosen automatically or forced to a specific user — I can give the exact code snippet for your setup. Sources: Agent session | LiveKit Documentation | How to set a fixed participant for agent audio processing | LiveKit

limited-spring-14213

02/23/2026, 1:19 AM

can i get the room_io object from the Room

tall-airline-16756

02/23/2026, 1:19 AM

Thanks — you’re asking whether

room_io

can be retrieved directly from a

Room

object. Good clarification. Short answer • No:

RoomIO

is not retrieved from the

Room

itself.

RoomIO

is created/managed as part of the AgentSession and is accessed from the session via

session.room_io

, not via

room

. What that means for you • You should create or keep a reference to the

RoomIO

instance when you start the agent session (or construct a custom

RoomIO

), and then access it from the session:

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participant = session.room_io.linked_participant
await session.room_io.set_participant("user-456")

• The

Room

object represents the room state, but it does not expose the

RoomIO

wrapper that handles audio routing and the linked participant logic. If you want • Tell me which SDK/language you’re using (Python, JS, etc.) and whether you’re creating

RoomIO

yourself or relying on the session to create it. I can provide a short code example showing proper creation/usage and how to wire the

Room

RoomIO

, and

AgentSession

together.

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