You're asking how to auto-trigger a second agent when the user is silent for a while — here's a concise, practical approach you can implement. 1) Core idea • Track when the user last spoke (listen for

user_state_changed

events). • Run a short background monitor that checks elapsed silence. • When silence > threshold, trigger a handoff to the second agent (

session.update_agent()

in Python or

session.updateAgent()

/ return a

llm.handoff

in JS). 2) Minimal Python flow • On agent enter: set

user_last_spoke = now

, start an async monitor task, subscribe to

user_state_changed

. • On

user_state_changed

to `speaking`: update

user_last_spoke

. • Monitor: every 0.5–1s check `now - user_last_spoke`; if > threshold, call

await session.update_agent(SecondAgent())

and cancel monitor. • On exit: cancel monitor to avoid leaks. 3) Minimal Node.js flow • On `onEnter()`: set

userLastSpoke = Date.now()

, attach handler for

UserStateChanged

, start setInterval check. • On event where `newState === 'speaking'`: update

userLastSpoke

. • In interval: if

Date.now() - userLastSpoke > silenceThreshold

then call

this.session.updateAgent(new SecondAgent())

(or return

llm.handoff

) and clear interval. • On exit: clear interval. 4) Practical tips • Pick a sensible threshold (e.g., 3–10s) for your use case. • Debounce or require two checks before handing off to avoid false triggers. • Clean up the monitor on agent exit to prevent memory leaks. • If you want the second agent to announce the handoff, initiate that immediately after updating the agent. If you want, I can: • Provide the exact code snippet customized to your codebase (Python or Node), or • Suggest debounce logic or a flow that gives the user a short polite prompt before handing off. Which would you prefer? Sources: Events and error handling | LiveKit docs | Turn detection and interruptions | LiveKit Docs