{"record":{"id":"5c06d8e132fc37ea","repo":"chenhg5/cc-connect","slug":"codexsession-stdout-pipe-w","errorCode":null,"errorMessage":"codexSession: stdout pipe: %w","messagePattern":"codexSession: stdout pipe: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"agent/codex/session.go","lineNumber":161,"sourceCode":"\n\tbin := cs.cmd\n\tif bin == \"\" {\n\t\tbin = \"codex\"\n\t}\n\n\tslog.Debug(\"codexSession: launching\", \"resume\", isResume, \"args\", core.RedactArgs(args))\n\n\tcmd := exec.CommandContext(cs.ctx, bin, args...)\n\tcmd.Dir = cs.workDir\n\tprepareCmdForKill(cmd)\n\tif len(cs.extraEnv) > 0 {\n\t\tcmd.Env = core.MergeEnv(os.Environ(), cs.extraEnv)\n\t}\n\tcmd.Stdin = strings.NewReader(prompt)\n\n\tstdout, err := cmd.StdoutPipe()\n\tif err != nil {\n\t\treturn fmt.Errorf(\"codexSession: stdout pipe: %w\", err)\n\t}\n\n\tvar stderrBuf bytes.Buffer\n\tcmd.Stderr = &stderrBuf\n\n\tif err := cmd.Start(); err != nil {\n\t\treturn fmt.Errorf(\"codexSession: start: %w\", err)\n\t}\n\tcs.addCmd(cmd)\n\n\tcs.wg.Add(1)\n\tgo cs.readLoop(cmd, stdout, &stderrBuf)\n\n\treturn nil\n}\n\nfunc (cs *codexSession) stageImages(prompt string, images []core.ImageAttachment) (string, []string, error) {\n\tif len(images) == 0 {","sourceCodeStart":143,"sourceCodeEnd":179,"githubUrl":"https://github.com/chenhg5/cc-connect/blob/4000b2338aa6e850c99df54f8b0ed6ed7460b401/agent/codex/session.go#L143-L179","documentation":"Wraps a failed exec.Cmd.StdoutPipe() in codexSession.Send while preparing the per-turn codex subprocess. It fires before launch and indicates OS-level pipe allocation failure (typically fd exhaustion), not a codex problem.","triggerScenarios":"Thrown at agent/codex/session.go:161 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Raise the process file-descriptor limit","Reduce concurrent codex turns/sessions","Investigate fd leaks in the daemon"],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"4000b2338aa6e850c99df54f8b0ed6ed7460b401","analyzedAt":"2026-09-06T11:45:09.575Z","contentChangedAt":"2026-09-06T11:45:09.575Z","schemaVersion":2},"datasetVersion":"2026-09-14T05:17:10.506Z"}