mcp-path-normalization-on-windows-the-filesystem-mcp-server-always-return-c8278331

THEN Use case-insensitive comparison when checking if a parent directory is within allowed directories on Windows. Normalize both the allowed directory path and the parent path to lowercase before applying the startsWith check.

const isParentAllowed = allowedDirectories.some(dir =>
  process.platform === 'win32'
    ? normalizedParent.toLowerCase().startsWith(dir.toLowerCase())
    : normalizedParent.startsWith(dir)
);