feat(filesystem): add append_file and write_or_update_file tools #2816
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…functions Add two new file content operations: - appendFileContent: appends content to existing files - writeOrUpdateFileContent: creates or appends to files Both functions use atomic write operations with temporary files for safe file modifications.
Add two new MCP tools for enhanced file operations: - append_file: Appends content to existing files without overwriting - write_or_update_file: Creates new files or appends to existing ones These tools provide more flexible file modification options compared to the existing write_file tool which always overwrites content.
Add comprehensive unit tests for: - appendFileContent: file existence checks, content appending, error handling - writeOrUpdateFileContent: file creation, appending, error scenarios All tests follow existing patterns and include proper mocking.
…file tools Add documentation for the two new tools in the API section: - append_file: append content to existing files - write_or_update_file: create or append to files Also updated the Features section to highlight the new capabilities.
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Hi I really need this feature. could you please take a look? |
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Description
Fixes #2807
Added two new tools to the filesystem MCP server for enhanced file modification capabilities:
append_file: Appends content to existing files without overwritingwrite_or_update_file: Creates new files or appends to existing ones (smart create-or-append)These tools complement the existing
write_filetool by providing non-destructive file operations, addressing the common use case where users want to add content to files while preserving existing data.Server Details
Motivation and Context
The existing
write_filetool always overwrites file content, which is problematic when users want to:These new tools solve this by providing:
How Has This Been Tested?
Breaking Changes
No breaking changes. These are new tools that don't affect existing functionality.
Types of changes
Checklist
Additional context
Implementation details: