Allow custom Codex instructions for realtime transitions - #36408
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copyberry[bot] merged 1 commit intoJul 31, 2026
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## What changed - Add optional `realtimeStartInstructions` and `realtimeEndInstructions` fields to `thread/realtime/start`. - Apply the instructions when Codex enters and leaves realtime mode, while preserving the existing defaults when either field is omitted. - Limit each field to 8,192 estimated tokens. ## Testing - Cover custom entry and exit instructions across realtime state transitions. - Cover token-limit validation for both fields. GitOrigin-RevId: b9cfa1ff22e084d8a6b2ed56bd27d95ffdd6b6bd
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Allow custom Codex instructions for realtime transitions
What changed
realtimeStartInstructionsandrealtimeEndInstructionsfields tothread/realtime/start.Testing