One line of math froze my AI agent forever. The timeout watched and did nothing.

This is my second entry for the DEV x Sentry Bug Smash challenge. Entry #1 was a crash with a confusing error message. This one is the opposite and it is scarier: no crash, no message, no event. Just silence.

The bug that sends you nothing

smolagents runs LLM-generated Python in a sandboxed executor with a timeout. Issue #2473 claims that one line of model-generated math defeats it completely:

from smolagents.local_python_executor import LocalPythonExecutor

executor = LocalPythonExecutor(additional_authorized_imports=[], timeout_seconds=2)