MCP Servers

windbg-mcp

MCP server that drives cdb.exe/kd.exe to provide WinDbg debugging to LLM agents, enabling crash dump analysis, live process debugging, kernel debugging, and a searchable command reference.

Category

README

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"]
    }
  }
}

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

Building Effective Agents — agent design patterns that motivate the tool/agent boundaries here
Model Context Protocol — the protocol this server implements

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