Add the agent HTTP endpoints data plane protocol - #1728
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AgentHttp namespace in livekit_agent.proto: worker-dialed wires speak AgentHttp.Frame (attach handshake, opaque HTTP/1.1 data bytes, eof/reset, two-level credit), manifest + instance_id + endpoint_protocol in RegisterWorkerRequest, negotiated endpoint_settings in the response, draining/seq in UpdateWorkerStatus, GoAway. ValidateDeployment tightened to a URL-safe charset.
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This was referenced Aug 20, 2026
Replace the capsule/attach data-plane messages with the WebTransport model: one QUIC session per worker carrying a control stream plus one stream per HTTP exchange. Add ValidateAgentName so an agent name is usable as a single URL path segment.
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Protocol for the agent HTTP endpoints data plane. The worker connection is WebTransport (QUIC): one session per worker, a control stream carrying the existing
WorkerMessage/ServerMessageexchange, and one QUIC stream per HTTP exchange (QUIC provides multiplexing, per-stream flow control, half-close, and reset natively, so there is no capsule/credit layer).AgentHttpnamespace inlivekit_agent.proto: endpoint manifest (AgentEndpoint: path template, methods, public), kind enum,AgentEndpointSettings, andGoAway.RegisterWorkerRequest:endpointsmanifest,instance_id(epoch fencing),endpoint_protocol. Response carries negotiatedendpoint_settings.UpdateWorkerStatus:draining+seq;ServerMessage.go_awayfor control-connection drain.ValidateAgentName+ValidateDeploymenttightened to a URL-safe charset (both are URL path segments).Based on the livekit-server go.mod pin; rebases forward with it.