[app-server & core] introduce new codex error code and v2 app-server error events (#6938)

This PR does two things:
1. populate a new `codex_error_code` protocol in error events sent from
core to client;
2. old v1 core events `codex/event/stream_error` and `codex/event/error`
will now both become `error`. We also show codex error code for
turncompleted -> error status.

new events in app server test:
```
< {
<   "method": "codex/event/stream_error",
<   "params": {
<     "conversationId": "019aa34c-0c14-70e0-9706-98520a760d67",
<     "id": "0",
<     "msg": {
<       "codex_error_code": {
<         "response_stream_disconnected": {
<           "http_status_code": 401
<         }
<       },
<       "message": "Reconnecting... 2/5",
<       "type": "stream_error"
<     }
<   }
< }

 {
<   "method": "error",
<   "params": {
<     "error": {
<       "codexErrorCode": {
<         "responseStreamDisconnected": {
<           "httpStatusCode": 401
<         }
<       },
<       "message": "Reconnecting... 2/5"
<     }
<   }
< }

< {
<   "method": "turn/completed",
<   "params": {
<     "turn": {
<       "error": {
<         "codexErrorCode": {
<           "responseTooManyFailedAttempts": {
<             "httpStatusCode": 401
<           }
<         },
<         "message": "exceeded retry limit, last status: 401 Unauthorized, request id: 9a1b495a1a97ed3e-SJC"
<       },
<       "id": "0",
<       "items": [],
<       "status": "failed"
<     }
<   }
< }
```
This commit is contained in:
Celia Chen
2025-11-20 23:06:55 +00:00
committed by GitHub
parent 3f92ad4190
commit 9bce050385
16 changed files with 329 additions and 38 deletions
@@ -161,7 +161,7 @@ impl EventProcessor for EventProcessorWithHumanOutput {
fn process_event(&mut self, event: Event) -> CodexStatus {
let Event { id: _, msg } = event;
match msg {
EventMsg::Error(ErrorEvent { message }) => {
EventMsg::Error(ErrorEvent { message, .. }) => {
let prefix = "ERROR:".style(self.red);
ts_msg!(self, "{prefix} {message}");
}
@@ -221,7 +221,7 @@ impl EventProcessor for EventProcessorWithHumanOutput {
EventMsg::BackgroundEvent(BackgroundEventEvent { message }) => {
ts_msg!(self, "{}", message.style(self.dimmed));
}
EventMsg::StreamError(StreamErrorEvent { message }) => {
EventMsg::StreamError(StreamErrorEvent { message, .. }) => {
ts_msg!(self, "{}", message.style(self.dimmed));
}
EventMsg::TaskStarted(_) => {