feat(filesystem): add append_file and write_or_update_file tools #2816
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Hi I really need this feature. could you please take a look? |
This commit adds two new tools to the filesystem server: 1. **append_file**: Appends content to the end of an existing file. - File must already exist - Preserves existing content, adds new content at the end 2. **write_or_update_file**: Creates a new file or appends to an existing file. - If file doesn't exist: creates it with the provided content - If file exists: appends new content to the end - Useful when you want to add content while preserving existing data Changes include: - Added `appendFileContent` and `writeOrUpdateFileContent` functions to lib.ts - Added tool registrations and schemas to index.ts - Updated README.md with new tool documentation - Added comprehensive tests for the new functions 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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I just resolved the merge conflicts in my previously submitted PR. Could you please review it to help prevent future conflicts? |
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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: