Thanks — you want to skip (exclude) user and agent messages when updating the chat context. Quick answer and options: • You cannot directly mutate the live

ChatContext

. Create a copy, filter out the messages you want to skip, then update or use that copy for the next action. • Use the

copy()

helpers to exclude common categories: ◦ exclude_instructions / excludeInstructions — omit system/developer prompts ◦ exclude_function_call / excludeFunctionCall — omit tool/function calls ◦ exclude_handoff / excludeHandoff — omit handoff markers ◦ exclude_empty_message / excludeEmptyMessage — omit empty messages ◦ exclude_config_update (Python) — omit agent config updates Examples: 1. Python (exclude instructions & function calls)

next_ctx = self.chat_ctx.copy(exclude_instructions=True, exclude_function_call=True)

1. Node.js (same)

const nextAgentCtx = this.chatCtx.copy({ excludeInstructions: true, excludeFunctionCall: true });

• To remove specific user or agent turns beyond those categories, call

copy()

, then programmatically filter the returned messages (e.g., drop items where role === 'user' or role === 'assistant'), and either: ◦ pass that filtered

chat_ctx

into

generate_reply()

for a single reply, or ◦ call

update_chat_ctx()

with the modified snapshot to apply changes. If you tell me whether you’re using Python or Node.js and whether you want this only for a single reply or to permanently update the stored context, I’ll give the exact code snippet for your case. Sources: How to Build a Background Observer for Voice AI Guardrails | LiveKit | Chat context | LiveKit Documentation | Agent speech and audio | LiveKit Documentation | Agents and handoffs | LiveKit Documentation, with interactive elements