LLM doesn't work, let alone profit.

Yesterday I updated our dependency on the sqlx crate and put up a PR, and it failed in the CI build in a way I couldn’t reproduce locally.

I asked codex to take a look, and it:

- Grabbed the CI logs on its own to figure out what the CI error was

- Looked at my local setup

- Looked at the changes in sqlx from 0.8 to 0.9

And figured out that sqlx depends on an updated version of the “whoami” crate but doesn’t specify default features, which causes it to fall back on a stub implementation that makes the default user “anonymous”, which was failing to authenticate to the UNIX socket we use in our CI Postgres server. It patched the environment variable for our docker container to explicitly specify a username and the issue was fixed.

It would’ve taken me probably several hours to figure this out on my own. It took codex maybe 5 minutes.

Tell me again how LLM’s “don’t work”?

elaborate please, how does it not work?