Function mkdir

source code/utils/fsOperations.ts:416–427

(dirPath, options)

  },

  async mkdir(dirPath, options) {
    try {
      await mkdirPromise(dirPath, { recursive: true, ...options })
    } catch (e) {
      // Bun/Windows: recursive:true throws EEXIST on directories with the
      // FILE_ATTRIBUTE_READONLY bit set (Group Policy, OneDrive, desktop.ini).
      // Bun's directoryExistsAt misclassifies DIRECTORY+READONLY as not-a-dir
      // (bun-internal src/sys.zig existsAtType). The dir exists; ignore.
      // https://github.com/anthropics/claude-code/issues/30924
      if (getErrnoCode(e) !== 'EEXIST') throw e
    }
  },

  async readFile(fsPath, options) {
    return readFilePromise(fsPath, { encoding: options.encoding })