MCP Debugger

Unclaimed

by debugmcp

A headless, agentic debugger over MCP — let your AI agents debug running programs in seven languages.

Install

$docker run -v $(pwd):/workspace debugmcp/mcp-debugger:latest

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Tools (28)

attach_to_process

Attach debugger to a running process

clear_breakpoints

Remove all breakpoints (optionally per file)

close_debug_session

Close a session

continue_execution

Continue running

create_debug_session

Create a new debugging session

detach_from_process

Detach debugger from a process

evaluate_expression

Evaluate expressions in debug context

expose_session

Open a read-only DAP mirror endpoint so an IDE can attach and inspect

get_local_variables

Get local variables in current frame

get_output

Read captured debuggee output (stdout/stderr)

get_scopes

Get variable scopes for a frame

get_source_context

Get source code context

get_stack_trace

Get the current stack trace

get_variables

Get variables in a scope

list_breakpoints

List a session's breakpoints with verified state

list_debug_sessions

List all active sessions

list_supported_languages

Show available language adapters

list_threads

List all threads in the debug session

pause_execution

Pause running execution

redefine_classes

Hot-swap changed Java classes into a running JVM (Java only)

remove_breakpoint

Remove a breakpoint by id or file+line

restart_debugging

Relaunch with the same config, breakpoints re-applied

set_breakpoint

Set a breakpoint in a file

start_debugging

Start debugging a script

step_into

Step into a function

step_out

Step out of a function

step_over

Step over the current line

unexpose_session

Close the mirror endpoint and disconnect IDE clients