Files
codex/codex-rs/app-server-protocol
jiayuhuang-openai 4ebd976312 Support configurable realtime BEM channel prefixes (#34816)
## What changed

- Route realtime V3 `bemTags` handoffs using `[ANALYSIS]`, `[COMMENTARY]`, and `[FINAL]` prefixes by default.
- Add `codexResponseHandoffChannelPrefixes` to realtime start requests so clients can replace the accepted prefixes for individual channels. Each channel may accept multiple prefixes, and omitted channels retain their defaults.
- Apply the configured prefixes to both complete and streamed handoff messages, without treating empty prefixes as matches.

## Testing

- Cover request deserialization, default and custom routing, partial streamed prefixes, empty-prefix handling, and end-to-end V3 handoffs.

GitOrigin-RevId: d0aef50aa71362a5beef2c6f6d28b8633da4e529
2026-07-22 19:43:35 +00:00
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