Edit File Lines MCP Server
@oakenai
About Edit File Lines MCP Server
MCP Server to make line-based edits to a file.
Config
Add this server to your MCP-compatible client using the configuration below.
{
"mcpServers": {
"mcp-edit-file-lines": {
"command": "node",
"args": [
"build/index.js",
"<allowed-directory>",
"[additional-directories...]"
]
}
}
}Tools
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Overview
What is Edit File Lines MCP Server?
A TypeScript-based MCP server that provides tools for making precise, line-based edits to text files within allowed directories, using string or regex pattern matching.
How to use Edit File Lines MCP Server?
The server provides tools (edit_file_lines, approve_edit, get_file_lines, search_file) that can be invoked from any MCP client. Edits can be previewed with a dry run, then applied by providing the returned state ID to approve_edit.
Key features of Edit File Lines MCP Server
- Replace entire lines or specific text matches with
edit_file_lines - Use regex patterns for complex multi-line edits
- Dry run mode to preview changes before applying
- Two-step approval workflow with expiring state IDs
- Search files for patterns and inspect lines with context
Use cases of Edit File Lines MCP Server
- Update configuration values in source code files
- Modify component props or JSX structures
- Rename variables or strings across multiple lines
- Safely apply batch edits with preview and approval
- Locate exact line numbers before editing via search
FAQ from Edit File Lines MCP Server
What does the edit_file_lines tool do?
It edits specific line ranges in a file by replacing matched strings or regex patterns, with optional dry run to preview changes.
How do I apply changes after a dry run?
Call the approve_edit tool with the state ID returned by edit_file_lines to commit the modifications.
What happens if a state ID expires?
State IDs expire after a short time; attempting to use an expired or invalid ID returns an error.
What files can I edit with this server?
Only files within allowed directories configured for the server; the README mentions "allowed directories" but does not specify how they are set.
What additional tools are available besides edit_file_lines?
You can use get_file_lines to inspect specific lines with context, and search_file to find lines matching text or regex patterns across the file.
Frequently asked questions
What does the `edit_file_lines` tool do?
It edits specific line ranges in a file by replacing matched strings or regex patterns, with optional dry run to preview changes.
How do I apply changes after a dry run?
Call the `approve_edit` tool with the state ID returned by `edit_file_lines` to commit the modifications.
What happens if a state ID expires?
State IDs expire after a short time; attempting to use an expired or invalid ID returns an error.
What files can I edit with this server?
Only files within allowed directories configured for the server; the README mentions "allowed directories" but does not specify how they are set.
What additional tools are available besides `edit_file_lines`?
You can use `get_file_lines` to inspect specific lines with context, and `search_file` to find lines matching text or regex patterns across the file.
Basic information
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