Claude Code is totally different paradigm. You don't edit your files directly so there is no tab autocomplete. It's a chat session.
There are IDE integrations where you can run it in a terminal session while perusing the files through your IDE, but it's not powering any autocomplete there AFAIK.
Yes or running claude code in the cursor/vscode terminal and watching the files change and then reviewing in IDE. I often like to be able to see an entire file when reviewing a diff, rather than just the lines that changed. Plus it's nice to have go-to-definition when reviewing.
Yes, it shows you the file diff. But generally, the workflow is that you git commit a checkpoint, then let it make all the changes it wants freely, then in your IDE, review what has changed since previous commit, iterate the prompts/make your own adjustments to the code, and when you like it, git commit.
Depending on what I'm doing with it I have 3 modes:
Trivial/easy stuff - let it make a PR at the end and review in GitHub. It rarely gets this stuff wrong IME or does anything stupid.
Moderately complex stuff - let it code away, review/test it in my IDE and make any changes myself and tell claude what I've changed (and get it to do a quick review of my code)
Complex stuff - watch it like a hawk as it is thinking and interrupt it constantly asking questions/telling it what to do, then review in my IDE.
Apparently they are, which is crazy to me. Zed agent mode shows modified hunks and you can accept/reject them individually. I can't imagine doing it all through the CLI, it seems extremely primitive.