debugger-mcp-server

debugger-mcp-server

An MCP server that enables AI agents to debug code in VS Code. It exposes debugging tools (breakpoints, stepping, variable inspection) over the Model Context Protocol, bridging to a companion VS Code extension that controls the actual debugger.

Setup

• Install Agentic Debugger on Cursor or VS Code
• Add the MCP server to your client configuration:

Claude Code:

claude mcp add debugger --scope user -- npx debugger-mcp-server

Claude Desktop, Cursor, or other MCP clients:

{
  "mcpServers": {
    "debugger": {
      "command": "npx",
      "args": ["debugger-mcp-server"]
    }
  }
}

The package is available on npm.

Available Tools

Category	Tool	Description
Breakpoints	setBreakpoints	Set breakpoints in a file
Breakpoints	removeBreakpoints	Remove breakpoints
Breakpoints	listBreakpoints	List all active breakpoints
Debug Session	startDebugSession	Launch a debug session
Debug Session	stopDebugSession	Stop the active debug session
Debug Session	stepOver	Step over the current line
Debug Session	stepInto	Step into a function call
Debug Session	stepOut	Step out of the current function
Debug Session	continueExecution	Continue execution to next breakpoint
Debug Session	getVariables	Inspect variables in current scope
Debug Session	getCallStack	View the call stack
Debug Session	evaluateExpression	Evaluate an expression in the debug context