Similar story on my end.

I asked Fable to digest some test logs to help me figure out a situation, but I had launched VSCode without activation the virtual env in the terminal first. Consequently, the tests failed to run.

And then:

Because the tests failed to run, Fable attempted to fix the test execution to no end, doing everything it could to get them to work. I had to stop it when it started to pollute my system with manual installs of packages.

At least I'm glad there's a guardrail to not circumvent or bypass sudo, because I'm convinced we would have ended up there.

A coworker made the joke that with enough tokens, Fable would try and solve any programming problem by building Linux from scratch.