Try out using Claude Code. Works as a CLI so you can still use vim (or emacs if you really hate your pinky) or whatever editor you want. No plugin needed although they’re available.

You’ll also want to learn about prompt engineering and its twin sister context engineering [1]. From my experience most people who have a bad time with AI assistants are just giving bad prompts. Exceptions of course and plenty of valid criticism. These things aren’t infallible.