{"record":{"id":"ecc86b73472fe56b","repo":"chenhg5/cc-connect","slug":"codex-app-server-create-image-dir-w","errorCode":null,"errorMessage":"codex app-server: create image dir: %w","messagePattern":"codex app-server: create image dir: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"agent/codex/appserver_session.go","lineNumber":521,"sourceCode":"\t\treturn fmt.Errorf(\"codex app-server turn/start returned empty turn id\")\n\t}\n\n\ts.stateMu.Lock()\n\ts.currentTurn = resp.Turn.ID\n\ts.pendingMsgs = s.pendingMsgs[:0]\n\ts.stateMu.Unlock()\n\n\treturn nil\n}\n\nfunc (s *appServerSession) stageImages(prompt string, images []core.ImageAttachment) (string, []string, error) {\n\tif len(images) == 0 {\n\t\treturn prompt, nil, nil\n\t}\n\n\timgDir := filepath.Join(s.workDir, \".cc-connect\", \"images\")\n\tif err := os.MkdirAll(imgDir, 0o755); err != nil {\n\t\treturn \"\", nil, fmt.Errorf(\"codex app-server: create image dir: %w\", err)\n\t}\n\n\timagePaths := make([]string, 0, len(images))\n\tfor i, img := range images {\n\t\text := codexImageExt(img.MimeType)\n\t\tfname := fmt.Sprintf(\"img_%d_%d%s\", time.Now().UnixMilli(), i, ext)\n\t\tfpath := filepath.Join(imgDir, fname)\n\t\tif err := os.WriteFile(fpath, img.Data, 0o644); err != nil {\n\t\t\treturn \"\", nil, fmt.Errorf(\"codex app-server: save image: %w\", err)\n\t\t}\n\t\timagePaths = append(imagePaths, fpath)\n\t}\n\n\tif strings.TrimSpace(prompt) == \"\" {\n\t\tprompt = \"Please analyze the attached image(s).\"\n\t}\n\n\treturn prompt, imagePaths, nil","sourceCodeStart":503,"sourceCodeEnd":539,"githubUrl":"https://github.com/chenhg5/cc-connect/blob/4000b2338aa6e850c99df54f8b0ed6ed7460b401/agent/codex/appserver_session.go#L503-L539","documentation":"Before saving inbound images the session creates <workDir>/.cc-connect/images via os.MkdirAll; when that fails the error is wrapped with this message. It surfaces filesystem problems — permissions, read-only filesystem, or the path existing as a non-directory.","triggerScenarios":"Calling SendWithImages (a message containing images) when os.MkdirAll(imgDir, 0o755) fails because the working directory is not writable, is read-only, or a file named .cc-connect (or .cc-connect/images) already exists.","commonSituations":"Running cc-connect as a systemd service with a read-only or root-owned WorkingDirectory; workDir points into a read-only container layer; a stale file named .cc-connect/images exists from a previous misconfiguration; disk full.","solutions":["Check permissions on s.workDir and ensure the process user can create directories there (chown/chmod)","Verify nothing named .cc-connect or .cc-connect/images exists as a regular file; remove or rename it","Point the session's working directory at a writable location in config","Check disk space / read-only mount (dmesg, mount | grep ro)"],"exampleFix":"// before\nimgDir := filepath.Join(s.workDir, \".cc-connect\", \"images\")\nos.MkdirAll(imgDir, 0o755)\n// after — ensure workDir is writable at startup\nif err := os.MkdirAll(filepath.Join(s.workDir, \".cc-connect\"), 0o755); err != nil {\n    slog.Error(\"workdir not writable, fix permissions\", \"dir\", s.workDir, \"error\", err)\n}","handlingStrategy":"validation","validationCode":"if err := os.MkdirAll(filepath.Join(workDir, \".cc-connect\", \"images\"), 0o755); err != nil {\n    return fmt.Errorf(\"workdir not writable for images: %w\", err)\n}","typeGuard":null,"tryCatchPattern":null,"preventionTips":["At startup, verify workDir exists and is writable by the service user","Run the daemon with a dedicated writable WorkingDirectory; never a read-only mount","Do not place files named .cc-connect in the working directory","Monitor disk space on the volume hosting workDir"],"tags":["filesystem","images","permissions"],"backgroundTag":"mkdir-permission-denied","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"}