diff --git a/services/athena-realtime-voice/README.md b/services/athena-realtime-voice/README.md
index e48e58b..37d29e7 100644
--- a/services/athena-realtime-voice/README.md
+++ b/services/athena-realtime-voice/README.md
@@ -15,7 +15,13 @@ support are not implemented.
 For replies, the bridge consumes Athena's existing
 `/v1/audio/speech/pcm-stream` endpoint (24 kHz mono PCM) and enqueues audio
 frames as they arrive. Playback can start before Qwen finishes synthesizing a
-long reply. The bounded queue applies backpressure instead of truncating long
+long reply. This does not make playback start while the OpenClaw agent is still
+writing its answer: OpenClaw's browser `openclaw_agent_consult` path submits the
+tool result only after the agent's final chat event, so the bridge receives the
+complete text first. In one observed run, this agent phase took 14.1 seconds
+before TTS began. Streaming this phase would require an upstream OpenClaw Talk
+interface for partial agent text, while retaining agent tool access.
+The bounded queue applies backpressure instead of truncating long
 audio, and the next turn waits until all frames have played. The two-turn
 WebRTC test verifies that audio begins before the fake PCM stream finishes.