feat: add diff_files tool for file comparison #63
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added 4 commits
October 29, 2025 02:34
Implements rust-mcp-stack#60 - Add line numbering flag for read_text_file Changes: - Added `with_line_numbers` optional parameter to ReadTextFile struct - Updated read_text_file service method to format output with line numbers - Line numbers are right-aligned (6 digits) with pipe separator format - Uses 1-based indexing for line numbers - Maintains backward compatibility (defaults to false) - Added comprehensive unit tests for various scenarios - Updated CHANGELOG.md with feature description This feature enables AI agents to obtain file content with line numbers in a single tool invocation, improving efficiency for code modification tasks that require precise line-based targeting. [agent commit]
[agent commit]
[agent commit]
Implements a new diff_files tool that compares two files and returns: - Unified diff format for text files - SHA-256 hash comparison for binary files Features: - Configurable file size limit (default: 10MB) - Automatic binary detection via null bytes check - Read-only operation (no filesystem modification) - Comprehensive test coverage (8 test cases) Closes rust-mcp-stack#62 [agent commit]
hashemix
requested changes
Jan 3, 2026
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| ## [0.3.7](https://github.com/rust-mcp-stack/rust-mcp-filesystem/compare/v0.3.6...v0.3.7) (2025-10-31) | ||
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| ## [Unreleased] |
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| <!-- mcp-discovery-render --> | ||
| ## rust-mcp-filesystem 0.3.8 | ||
| | 🟢 Tools (24) | <span style="opacity:0.6">🔴 Prompts</span> | <span style="opacity:0.6">🔴 Resources</span> | <span style="opacity:0.6">🔴 Logging</span> | <span style="opacity:0.6">🔴 Completions</span> | <span style="opacity:0.6">🔴 Experimental</span> | |
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This looks like a leftover artifact from Claude. it should be removed.
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Summary
Implements a new
diff_filestool that enables file comparison within the MCP filesystem server.Closes #62
Changes
New Tool:
diff_filesParameters:
path1(string): First file path to comparepath2(string): Second file path to comparemaxFileSizeBytes(optional, default: 10MB): Maximum file size limitBehavior:
Implementation Details
Files Modified/Created:
src/tools/diff_files.rs- Tool definition with schemasrc/fs_service.rs- Service layer implementation with binary detectionsrc/tools.rs- Tool registration in macrossrc/handler.rs- Handler dispatch registrationCargo.toml- Addedhexdependency for hash encodingdocs/capabilities.md- Updated documentation (24→25 tools)tests/test_tools.rs- 8 comprehensive test casesKey Features:
Test Coverage
Added 8 test cases covering:
All 131 tests passing (cargo make check ✓)
Test Plan
Manual testing completed:
[agent pull request]