Windbg MCP
UnclaimedC# MCP server for kernel & user-mode Windows debugging — DbgEng COM, KDNET, Frida, dbgsrv, TTD, and integrated VM control. 29 tools for LLM agents.
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pip install frida-toolsUnclaimed listing
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get_system_state
Full state overview — VM power, KD, guest ops, UMD. Always allowed.
guest_kill_process
Kill a process by PID
guest_list_processes
List running processes with PIDs
guest_run_command
Execute command in guest OS, capture stdout/stderr
guest_transfer_from_vm
Copy file from guest to host
guest_transfer_to_vm
Copy file from host to guest
kd_break
Halt running target (Ctrl+Break)
kd_connect
Attach to kernel via KDNET. Target breaks on connect.
kd_continue
Resume target execution
kd_disconnect
Detach from kernel. Resumes target so VM keeps running.
kd_execute
Run any WinDbg command (k, r, lm, !process 0 0, !analyze -v, etc.)
kd_step
Step one instruction (into or over)
kd_wait_for_event
Wait for breakpoint/exception with timeout. Always returns.
umd_dbgsrv_connect
Connect to remote dbgsrv in guest
umd_dbgsrv_execute
Attach to PID, run WinDbg commands, detach
umd_dbgsrv_skill
dbgsrv best practices and WinDbg command reference for LLMs
umd_frida
Inject JS, eval expressions, list processes, detach
umd_frida_attach
Attach Frida to a guest process
umd_frida_skill
Frida best practices and API reference for LLMs
umd_ttd
Time Travel Debugging — record, stop, retrieve, list traces
umd_ttd_query
Query TTD traces (not yet implemented)
vm_pause
Freeze entire VM
vm_resume
Unpause a paused VM
vm_screenshot
Capture VM display as PNG
vm_set_target
Switch the active VM target at runtime (VMX path + credentials)
vm_snapshot_list
List available snapshots
vm_snapshot_restore
Restore a named snapshot (debug sessions are cleanly torn down and can reconnect after)
vm_start
Power on the VM
vm_stop
Shut down (graceful or hard)