MCP Filesystem Server

# Changelog All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). ## [Unreleased] ### Added - Grep functionality exposed through MCP - Support for ripgrep with Python fallback - Comprehensive search with regex, context, and pattern exclusion - Enhanced context control with separate before/after line parameters (like grep's -A/-B options) - Results pagination with offset/limit parameters - Line-targeted file operations - `read_file_lines` with offset/limit paradigm for precise line access - `edit_file_at_line` with content verification and relative line number support - Integration between grep and targeted operations for efficient workflow - Documentation of type safety issues and guidance in CLAUDE.md - Comprehensive test suite following pragmatic test-driven development approach - Smoke tests for critical user paths (read, write, grep, edit) - Integration tests with real temporary filesystem - End-to-end tests verifying server API to filesystem flow - Test data factories for sample data generation - Clean fixtures with proper dependency isolation - Mocks at external boundaries for faster test execution - Verification of actual functionality with real files ### Changed - Improved Python compatibility (requires 3.10+) - Enhanced server file operations with more granular edit capability - Changed line-targeting API from 1-based to 0-based indexing with offset/limit paradigm - Added content verification to file editing operations - Added relative line numbers support for more flexible line editing - Enhanced grep functionality with better context control and pagination - Improved code safety with proper null checks for Context parameters - Enhanced type safety with proper use of Optional types ### Fixed - Integrated targeted operations and grep functionality into the main codebase - Connected all components in the server implementation - Fixed unsafe comparison between int and None - Improved anyio.to_thread.run_sync usage with functools.partial - Fixed context_before type mismatch in grep.py - Properly typed transport parameter with Literal - Fixed all type errors in server.py, operations.py, advanced.py, and grep.py - Added type annotations for result variables and function parameters - Fixed `Dict` type incompatibility issue in advanced.py - Added missing imports from typing module (Any, Mapping) - Fixed read_file_lines bug that caused it to read beyond the requested line range - Fixed edit_file_at_line to properly handle content verification and relative line numbers - Fixed grep pagination to properly slice result sets - Improved test reliability by focusing on behavior rather than implementation details - Fixed inconsistent test expectations to match actual API semantics ## [0.1.0] - 2025-03-02 - Initial project setup - Basic file operations implementation - Security framework for file access - Server structure and MCP integration