- migrate the realtime websocket transport to the new session and
handoff flow
- make the realtime model configurable in config.toml and use API-key
auth for the websocket
---------
Co-authored-by: Codex <noreply@openai.com>
### Overview
This PR adds the first piece of tracing for app-server JSON-RPC
requests.
There are two main changes:
- JSON-RPC requests can now take an optional W3C trace context at the
top level via a `trace` field (`traceparent` / `tracestate`).
- app-server now creates a dedicated request span for every inbound
JSON-RPC request in `MessageProcessor`, and uses the request-level trace
context as the parent when present.
For compatibility with existing flows, app-server still falls back to
the TRACEPARENT env var when there is no request-level traceparent.
This PR is intentionally scoped to the app-server boundary. In a
followup, we'll actually propagate trace context through the async
handoff into core execution spans like run_turn, which will make
app-server traces much more useful.
### Spans
A few details on the app-server span shape:
- each inbound request gets its own server span
- span/resource names are based on the JSON-RPC method (`initialize`,
`thread/start`, `turn/start`, etc.)
- spans record transport (stdio vs websocket), request id, connection
id, and client name/version when available
- `initialize` stores client metadata in session state so later requests
on the same connection can reuse it
Currently `thread/name/set` does only work for loaded threads.
Expand the scope to also support persisted but not-yet-loaded ones for a
more predictable API surface.
This will make it possible to rename threads discovered via
`thread/list` and similar operations.
## Summary
- increase `DEFAULT_READ_TIMEOUT` in `codex_message_processor_flow` from
20s to 45s
- keep test behavior the same while avoiding platform timing flakes
## Why
Windows ARM64 CI showed these tests taking about 24s before
`task_complete`, which could fail early and produce wiremock
request-count mismatches.
## Testing
- just fmt
- cargo test -p codex-app-server codex_message_processor_flow --
--nocapture
## Summary
Codex discovered this one - shell_snapshot tests were breaking on my
machine because I had a multiline env var. We should handle these!
## Testing
- [x] existing tests pass
- [x] Updated unit tests
## Summary
- restore `Tab to queue` when a draft is present and the agent is
running
- keep draft-idle footers passive by showing the normal footer or status
line instead of `? for shortcuts`
- align footer snapshot coverage with the updated draft footer behavior
## Codex author
`codex resume 019c7f1c-43aa-73e0-97c7-40f457396bb0`
---------
Co-authored-by: Codex <noreply@openai.com>
Charles Cunningham