Gitstress/gitstress ? reverse-engineered prompt

Build me a command line tool that can look at a local codebase or a GitHub repo and tell me which line, query, or handler is most likely to fail first when lots of requests hit it at once.

I want it to give a simple report with the main bottleneck, the file and line number, a short explanation of why it is risky, and a suggested fix that I could actually apply. It should also be able to run a quick live check against a local server and compare the prediction with real behavior. If possible, make it work from the terminal with a friendly help screen, JSON output for automation, and a CI mode that can fail the build when it finds a serious concurrency problem.

If you need to look up current docs or best practices while building it, go ahead.