Codex 0.134+ WebSocket reconnection issue after tool calls

What version of the Codex App are you using (From “About Codex” dialog)?

Codex 0.134+

What subscription do you have?

API only

What platform is your computer?

Microsoft Windows NT 10.0.26200.0 x64

What issue are you seeing?

Codex 0.134+ WebSocket reconnection issue after tool calls

Environment:

• Version: 0.134.0+ (Codex desktop 26.527.3686.0)
• Platform: Microsoft Windows NT 10.0.26200.0 x64
• Scenario: Custom API proxy + tool_calls

Problem:
Codex disconnects after executing tool calls. Server logs show all requests return 200 OK with no errors. Codex client logs show
no recent error logs available.

Steps to reproduce:

1. Configure custom API proxy
2. Send request with tools
3. Model returns tool_calls
4. Codex executes tool, sends tool_result
5. Codex disconnects, cannot continue conversation

Expected behavior:
Codex should continue conversation after tool execution.

Actual behavior:
Codex disconnects after tool call.

Server logs: No errors, all requests successful
Client logs: No recent error logs available

This may be related to WebSocket reconnection logic in 0.134.0 (#23867, #23775, #23951).

What steps can reproduce the bug?

1. Configure custom API proxy
2. Send request with tools
3. Model returns tool_calls
4. Codex executes tool
5. Codex disconnects

Proxy logs: No errors, 200 OK responses
Client logs: No recent errors

Issue: WebSocket reconnection after tool call execution

What is the expected behavior?

Codex should continue the conversation after executing a tool call and receiving the response. Instead, it disconnects and requires restart

Additional information

This issue started after updating to 0.134.0+. Previous version 0.133.0 worked fine with the same proxy configuration.
The WebSocket reconnection logic changes in 0.134.0 (#23867, #23775, #23951) may have introduced this regression.