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Fix ElevenLabs keepalive racing context-init (1008 disconnects)

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The keepalive could fire for a new turn's context before that context's
voice_settings context-init was sent, making the keepalive the context's
first message (no voice_settings) and causing ElevenLabs to reject the
later init with a 1008 policy violation. The keepalive now only targets a
context once its context-init has been sent (tracked in _context_init_sent).
This commit is contained in:
Mark Backman
2026-05-20 08:59:01 -04:00
parent 82cd931efa
commit a5e6886b80
3 changed files with 124 additions and 16 deletions
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- Fixed a race in `ElevenLabsTTSService` where the periodic keepalive could be sent for a new turn's context before that context's `voice_settings` initialization message, causing ElevenLabs to close the WebSocket with a 1008 policy violation (`voice_settings field must be provided in the first message ...`). The keepalive now only targets a context once its context-init has been sent.