MCP Server for WinDbg Crash Analysis

A Model Context Protocol server for Windows crash dump analysis using WinDbg/CDB

Connector by svnscha · GitHub account verified by the MCP Registry

IndexedMITLocal (stdio)Remote (HTTP)★ 1,632

Install

Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/svnscha-mcp-windbg

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

Get the weekly diff

The weekly diff: one email a week with new agent tools, notable updates and grade changes, plus security alerts for tools you follow. Double opt-in, one-click unsubscribe.

About

A Model Context Protocol server for Windows crash dump analysis using WinDbg/CDB

Use cases: debugging

Reviews

Write a review

No reviews yet. Installed it? Reviews come from verified installers only. How reviews work

Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools: 2 read · 5 write · 2 delete · 3 not yet classified
Secrets: None asked for
Install scripts: Not scanned yet
Runs as: Python package

Tools by what they do 12

Read from the source code; the running server may list different tools.

Read 2 · Look things up without changing anything.

list_dumps
read_debugger_log

Write 5 · Create, change, send or run things.

close_cdb_session
close_kd_session
open_cdb_remote
open_kd_session
send_ctrl_break

Delete 2 · Delete, drop, revoke or wipe things.

run_cdb_command
run_kd_command

Not yet classified 3 · We could not tell from the name and description.

open_cdb_dump
open_kd_dump
wait_for_break

Secrets and settings it asks for

Other settings (environment variables or headers).

CDB_PATH
_NT_SYMBOL_PATH

Tools (12)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

close_cdb_session
Close a user-mode (cdb) session and release its resources, addressed by session_id. For a remote session this closes only the MCP client, not the external debug server. Stop any server you started separately; leave pre-existing servers alone. The target is left as the client found it (resumed if it was running at attach, stopped otherwise) unless resume says otherwise.
close_kd_session
Close a kernel (kd) session and release its resources, addressed by session_id.
list_dumps
List Windows crash dump files in a directory. Helps discover dumps to analyze with open_cdb_dump (or open_kd_dump for kernel dumps).
open_cdb_dump
Open and triage a Windows crash dump with cdb.exe (user mode). Runs .lastevent and !analyze -v (optionally kb/lm/~) and returns a session_id. Use that session_id with run_cdb_command and close_cdb_session. For a kernel dump from a bugcheck (MEMORY.DMP, Minidump\*.dmp) use open_kd_dump.
open_cdb_remote
Attach to a user-mode remote debug server (-remote) with cdb.exe, e.g. one started with 'cdb -server tcp:port=5005 -noio <program>'. A target that is running when the client attaches is left running and the open returns without triage, unless break_in is true, which breaks in for the triage and leaves it stopped. Returns a session_id for run_cdb_command / send_ctrl_break / close_cdb_session. For kernel targets use open_kd_session instead. WARNING: CDB 10.0.29661.1004 in -server mode with NUL stdin (/dev/null, subprocess.D…
open_kd_dump
Open and triage a kernel-mode crash dump with kd.exe: a complete, kernel, or bitmap memory dump (MEMORY.DMP) or a small memory dump (Minidump\*.dmp) written by a bugcheck. Runs vertarget and !analyze -v (optionally kb/lm/~) and returns a session_id for run_kd_command and close_kd_session. For user-mode dumps use open_cdb_dump.
open_kd_session
Attach to a kernel target with kd.exe (-k). Waits for the target to connect, breaks in, and returns a session_id for run_kd_command / send_ctrl_break / close_kd_session. Connection strings: KDNET 'net:port=50000,key=1.2.3.4', named pipe 'com:pipe,port=\\.\pipe\com_1,baud=115200,reconnect,resets=0', or serial 'com:port=COM1,baud=115200'.
read_debugger_log
Read the newest lines a session's debugger printed, including output no tool call returned, such as kernel debug prints while the target ran. Optionally keep only lines containing grep. Needs the server started with --log-dir; works after the session is closed.
run_cdb_command
Run a WinDbg/CDB command on a user-mode session (from open_cdb_dump or open_cdb_remote), addressed by session_id. Optional timeout_seconds overrides the default.
run_kd_command
Run a command on a kernel session (from open_kd_session or open_kd_dump), addressed by session_id. Optional timeout_seconds overrides the default (kernel memory reads can be slow).
send_ctrl_break
Break into a running live session (cdb remote or kd), addressed by session_id. Useful to interrupt a running target so commands work again.
wait_for_break
Block until a resumed target stops, and return everything it printed when it did. Use this after letting the target run with 'g' - to catch the bugcheck, the breakpoint report, or the break-in banner. Returns immediately if the target is already stopped. If it is still running when the wait expires, the target is left running: wait again, or halt it with send_ctrl_break.

Signals

Stars: 1,632
Forks: 164
Open issues: 0
Contributors: 13
Weekly downloads: 724
Last commit: Oct 23, 2026 (5 days ago)
Last release: Oct 23, 2026 (5 days ago)
Last package publish: Oct 23, 2026 (5 days ago)

From GitHub (fetched Oct 24, 2026) and the package registry.

Details

Registry name: io.github.svnscha/mcp-windbg
Version: 1.6.0
Auth: No auth
Packages: pypi mcp-windbgpypi mcp-windbg
License: MIT
Repository: github.com/svnscha/mcp-windbg
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: Official MCP Registry github-graphql