{"record":{"id":"b3242362c9c20f0d","repo":"charmbracelet/crush","slug":"failed-to-access-file-w","errorCode":null,"errorMessage":"failed to access file: %w","messagePattern":"failed to access file: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"internal/agent/tools/edit.go","lineNumber":115,"sourceCode":"\t\t\tnotifyLSPs(ctx, lspManager, params.FilePath)\n\n\t\t\ttext := fmt.Sprintf(\"<result>\\n%s\\n</result>\\n\", response.Content)\n\t\t\ttext += getDiagnostics(params.FilePath, lspManager)\n\t\t\tresponse.Content = text\n\t\t\treturn response, nil\n\t\t},\n\t)\n}\n\nfunc createNewFile(edit editContext, filePath, content string, call fantasy.ToolCall) (fantasy.ToolResponse, error) {\n\tfileInfo, err := os.Stat(filePath)\n\tif err == nil {\n\t\tif fileInfo.IsDir() {\n\t\t\treturn fantasy.NewTextErrorResponse(fmt.Sprintf(\"path is a directory, not a file: %s\", filePath)), nil\n\t\t}\n\t\treturn fantasy.NewTextErrorResponse(fmt.Sprintf(\"file already exists: %s\", filePath)), nil\n\t} else if !os.IsNotExist(err) {\n\t\treturn fantasy.ToolResponse{}, fmt.Errorf(\"failed to access file: %w\", err)\n\t}\n\n\tdir := filepath.Dir(filePath)\n\tif err = os.MkdirAll(dir, 0o755); err != nil {\n\t\treturn fantasy.ToolResponse{}, fmt.Errorf(\"failed to create parent directories: %w\", err)\n\t}\n\n\tsessionID := GetSessionFromContext(edit.ctx)\n\tif sessionID == \"\" {\n\t\treturn fantasy.ToolResponse{}, fmt.Errorf(\"session ID is required for creating a new file\")\n\t}\n\n\t_, additions, removals := diff.GenerateDiff(\n\t\t\"\",\n\t\tcontent,\n\t\tstrings.TrimPrefix(filePath, edit.workingDir),\n\t)\n\tp, err := edit.permissions.Request(","sourceCodeStart":97,"sourceCodeEnd":133,"githubUrl":"https://github.com/charmbracelet/crush/blob/7944b8e52225d8805e31eacbf7ef24856b0dfb7a/internal/agent/tools/edit.go#L97-L133","documentation":"In createNewFile (edit tool, new-file mode), os.Stat returned an error that is neither nil nor os.IsNotExist, meaning file accessibility could not be determined. The tool aborts rather than risk overwriting an existing file it cannot inspect. Expected errors (file exists / not exists) are handled separately.","triggerScenarios":"os.Stat fails with EACCES/EACCES on a parent directory (permission denied while traversing the path), ELOOP from a symlink cycle, ENAMETOOLONG, or I/O errors on the filesystem — anything other than ErrNotExist.","commonSituations":"Creating a file inside a directory the process cannot read/execute; broken symlink loops in the path; very long paths; network filesystems returning transient stat errors.","solutions":["Check the wrapped error code (EACCES, ELOOP, ENAMETOOLONG) and fix the path accordingly","Ensure all parent directories are traversable (r+x) by the running process","Remove or repair symlink cycles in the path","Shorten the path if NAME_MAX/PATH_MAX is exceeded"],"exampleFix":"// before\npath: /root/secret/newfile.go  (running as unprivileged user)\n// after\npath: /home/user/project/newfile.go","handlingStrategy":"validation","validationCode":"parent := filepath.Dir(target)\nfor p := parent; p != \"/\"; p = filepath.Dir(p) {\n    fi, err := os.Stat(p)\n    if err != nil {\n        if os.IsNotExist(err) { continue } // will be created\n        return fmt.Errorf(\"cannot inspect %s: %v\", p, err)\n    }\n    if !fi.IsDir() { return fmt.Errorf(\"%s is not a directory\", p) }\n}","typeGuard":null,"tryCatchPattern":"_, err := os.Stat(filePath)\nif err != nil && !os.IsNotExist(err) {\n    return fmt.Errorf(\"cannot determine if %s exists: %w\", filePath, err)\n} // proceed only when err == nil (exists → reject) or os.IsNotExist(err)","preventionTips":["Target paths inside directories you can read and traverse","Avoid deeply nested or symlink-heavy paths","Shorten paths that approach NAME_MAX/PATH_MAX limits","On network filesystems, tolerate transient stat errors with a retry"],"tags":["filesystem","stat","permissions","edit"],"backgroundTag":"stat-permission-denied","analyzedSha":"7944b8e52225d8805e31eacbf7ef24856b0dfb7a","analyzedAt":"2026-08-29T12:48:59.079Z","schemaVersion":2},"datasetVersion":"2026-08-29T17:17:51.833Z"}