Health check endpoint.

Read-only access to conversation history (owned by LLM).

Fresh state at the start of a call.

Return the most recent call trace as JSON.

State after stream has started.

Start playing a fixed list of audio chunks (legacy mode).

State while agent is responding.

Start the FastAPI server.

Close connection gracefully after flushing.

AgentTurnDoneEvent in LISTENING should not crash.

MediaEvents should always produce FeedFluxAction.

AgentTurnDoneEvent should be ignored if already listening.

AgentTurnDoneEvent should transition back to LISTENING.

Empty transcript should be ignored.

EndOfTurn should be ignored if already responding.

FluxEndOfTurnEvent with transcript should start agent turn.

EndOfTurn before stream starts should still work.

Complete turn: Flux EndOfTurn -> Agent responds -> Done.

Barge-in: Agent responding -> Flux StartOfTurn -> Reset.

After barge-in, a new turn can start.

MediaEvent should not change application state.

MediaEvent should always produce FeedFluxAction.

Audio should flow to Flux regardless of phase.

Multiple turns work correctly.

StartOfTurn during LISTENING should be a no-op.

FluxStartOfTurnEvent in LISTENING is normal (user talking).

StartOfTurn during RESPONDING should trigger barge-in.

State updates should not mutate original.

StreamStartEvent should reset to LISTENING even if RESPONDING.

StreamStartEvent should set the stream_sid.

StreamStopEvent while listening should produce no actions.

StreamStopEvent should produce no actions when listening.

StreamStopEvent should reset agent turn if responding.

Initiate an outbound call. Usage: curl https://your-server/call/+1234567890

Return TwiML instructing Twilio to connect a WebSocket stream. Twilio calls this URL when the call is answered. During graceful shut

Wait for playback to complete (or be interrupted).

WebSocket endpoint for Twilio Media Streams. Handles the bidirectional audio stream for a single call. Tracks active connections for