jiayuhuang-openai 312caf176a Seed realtime V3 sessions with initial text items (#34067) ...

## What changed

- Add an optional `initialItems` field to `thread/realtime/start` for seeding
  realtime V3 session history with `user`, `developer`, and `assistant` text.
- Encode the items in Frameless Bidi session bootstrap payloads for websocket
  and WebRTC transports while preserving existing payloads when the list is
  omitted or empty.
- Reject non-empty initial items for V1 and V2, more than 128 items, any item
  over 8,192 estimated tokens, or a combined total over 8,192 estimated tokens.

## Testing

- Cover protocol serialization, app-server forwarding, websocket and WebRTC
  payloads, empty-list compatibility, version checks, and size limits.

GitOrigin-RevId: 09af367f9a07543e3f8d59b7fa5387f932dc5a6a

2026-07-18 20:59:57 +00:00

..

clients.rs

Require prefixes for outbound response item IDs (#32312)

2026-07-11 02:29:14 +00:00

models_integration.rs

Respect model support for reasoning summaries (#32290)

2026-07-10 23:39:21 +00:00

realtime_websocket_e2e.rs

Seed realtime V3 sessions with initial text items (#34067)

2026-07-18 20:59:57 +00:00

sse_end_to_end.rs

[codex] Use expect in integration tests (#28441)

2026-06-15 21:53:47 -07:00