Edit File Lines MCP Server

Name: Edit File Lines MCP Server
Author: oakenai

@oakenai

Repository

About Edit File Lines MCP Server

MCP Server to make line-based edits to a file.

Basic information

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

No tools detected

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

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.

Comments

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