This Node.js-based MCP server extends the standard Filesystem MCP Server to add per-directory ignore rules via `.mcpignore`. It enables you to control which files MCP Clients can access by patterns, modeled after `.gitignore`. You specify base directories to expose via `args`, and create an `.mcpignore` file in each directory to define which files and subdirectories should be hidden from clients. The server supports common filesystem operations like reading and writing files, and creating, listing, or deleting directories, while enforcing the ignore rules. Certain operations are blocked by default unless permitted by the ignore configuration: read_file, read_multiple_files, write_file, edit_file, create_directory, list_directory, and move_file are blocked; directory_tree is allowed (but only to retrieve file names); search_files is allowed (again, limited to retrieving names); get_file_info is blocked. A note explains that an `.mcpignore` should exist for each directory provided in `args`. Patterns in `.mcpignore` follow the same syntax as `.gitignore`, with examples such as ignoring specific files, extensions, and entire directories. The project references the Filesystem MCP Server API Spec and provides an NPX-based usage example for deployment. It also includes client config guidance for Claude, Cline, and Cursor.