debug_python_repro
best first tool for a reproducible Python bug. It launches a Python script under debugpy, sets breakpoints, continues to the first stop, and returns stack plus top-frame locals.
How to use it
debug_python_repro is exposed by the Vibe Debug MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the debug_python_repro tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.
Install Vibe Debug
npx -y github:illscience/vibe-debug doctorOther tools in Vibe Debug (11)
attach to an existing debugpy listener.
continue until breakpoint, exception, process exit, or timeout.
evaluate an expression in a paused frame.
returns instructions that tell agents when to use the debugger.
launch a Python script under debugpy.
inspect scope handles for a frame.
set file/line breakpoints.
inspect stack frames.
step over, into, or out.
disconnect and clean up a session.
expand locals, globals, objects, lists, or dicts.