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windbg-mcp

by kanren3
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windbg-mcp

MCP server that drives cdb.exe (user mode) and kd.exe (kernel mode) as subprocesses, exposing WinDbg debugging to LLM agents over the Model Context Protocol: crash dump analysis, live process debugging, and kernel debugging.

Windows only. Requires Bun ≥ 1.1 (uses bun:ffi) and the Windows Debugging Tools (cdb.exe / kd.exe, auto-detected from the standard Windows Kits paths or the Store-installed WinDbg for Windows).

Usage

Add to your MCP client configuration:

{
  "mcpServers": {
    "windbg-mcp": {
      "command": "bun",
      "args": ["x", "windbg-mcp@latest"]
    }
  }
}

Related MCP server: dump-analyzer-mcp-server

Tools

Tool

Purpose

windbg_open_dump

Open a crash dump (.dmp/.mdmp/.hdmp) for analysis

windbg_open_executable

Launch a process under cdb

windbg_attach_process

Attach to a running process by pid or name

windbg_attach_kernel

Connect kd to a kernel target (KDNET / pipe / serial)

windbg_execute_command

Run any debugger command (kb, lm, !analyze -v, …)

windbg_sessions

List active sessions with their state

windbg_interrupt_target

Break into a running target (CTRL+BREAK)

windbg_search_commands

Search the WinDbg command catalog by keyword

windbg_close

End session, terminating the debuggee

windbg_detach

End session, leaving the debuggee running

Development

git clone https://github.com/kanren3/windbg-mcp.git
cd windbg-mcp
bun run src/index.ts

References

This server cannot be installed

A
license - permissive license
Not graded
quality - not tested
B
maintenance

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Maintenance

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–Response time
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–Releases (12mo)
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