{"record":{"id":"3b69e988035db454","repo":"nikivdev/code","slug":"codex-app-server-response-timed-out","errorCode":null,"errorMessage":"codex app-server response timed out","messagePattern":"codex app-server response timed out","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"src/commit.rs","lineNumber":4744,"sourceCode":"            }\n            Ok(CodexAppServerEvent::ReadError(err)) => bail!(\"failed to read from codex: {}\", err),\n            Ok(CodexAppServerEvent::Closed) => bail!(\"codex app-server closed stdout unexpectedly\"),\n            Err(RecvTimeoutError::Timeout) => continue,\n            Err(RecvTimeoutError::Disconnected) => bail!(\"codex app-server reader disconnected\"),\n        }\n    }\n}\n\n/// Read lines until a JSON-RPC response with the expected id arrives.\nfn codex_read_response(\n    rx: &std::sync::mpsc::Receiver<CodexAppServerEvent>,\n    expected_id: u64,\n    deadline: std::time::Instant,\n) -> Result<serde_json::Value> {\n    loop {\n        let msg = match codex_read_next_message(rx, deadline)? {\n            CodexReadOutcome::Message(msg) => msg,\n            CodexReadOutcome::TimedOut => bail!(\"codex app-server response timed out\"),\n        };\n        if msg.get(\"id\").and_then(|id| id.as_u64()) == Some(expected_id) {\n            if let Some(err) = msg.get(\"error\") {\n                bail!(\n                    \"codex error: {}\",\n                    err.get(\"message\")\n                        .and_then(|m| m.as_str())\n                        .unwrap_or(\"unknown error\")\n                );\n            }\n            return Ok(msg);\n        }\n    }\n}\n\nfn codex_read_response_with_notifications<F>(\n    rx: &std::sync::mpsc::Receiver<CodexAppServerEvent>,\n    expected_id: u64,","sourceCodeStart":4726,"sourceCodeEnd":4762,"githubUrl":"https://github.com/nikivdev/code/blob/a747e741ae92c09071d0ae946ab48488adcff1ce/src/commit.rs#L4726-L4762","documentation":"codex_read_response waits for a JSON-RPC response with a specific id; when its deadline passes and codex_read_next_message reports TimedOut, this error is raised. It means codex never replied to the outstanding request within the allotted time, so the review step fails.","triggerScenarios":"Sending a JSON-RPC request to the codex app-server and waiting for the response with the expected id when no matching message arrives before the deadline.","commonSituations":"Codex hung on a large prompt/diff; backend model latency spike; codex busy or deadlocked; deadline configured too aggressively for slow machines/networks.","solutions":["Increase the codex timeout/deadline configuration and retry.","Check codex process health — it may be hung; restart it and rerun the command.","Reduce the request size (smaller diff/prompt) so codex responds faster.","Verify network/backend connectivity if codex proxies to a remote model."],"exampleFix":"// before\ncodex_read_response(rx, expected_id, Instant::now() + Duration::from_secs(30))\n// after: allow more time for slow reviews\ncodex_read_response(rx, expected_id, Instant::now() + Duration::from_secs(120))","handlingStrategy":"retry","validationCode":null,"typeGuard":null,"tryCatchPattern":"match codex_read_response(rx, id, deadline) {\n    Err(e) if e.to_string().contains(\"response timed out\") => {\n        // back off, optionally extend deadline, and retry the request\n    }\n    other => other?,\n}","preventionTips":["Size the deadline for your worst-case model latency, not the average.","Keep diffs/prompts small to keep codex responses fast.","Alert on codex process stalls during long review turns."],"tags":["codex","timeout","json-rpc","ipc"],"backgroundTag":"request-timeout","analyzedSha":"a747e741ae92c09071d0ae946ab48488adcff1ce","analyzedAt":"2026-09-01T22:43:55.719Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}