Huh, I find my copilot plugin to be so incredibly glitchy. My agents are always reporting that their shells are mangled that commands are truncated and all kinds of nonsense. Sometimes they spin up dev servers fine other times it just hangs waiting for a terminal response. So far I have found relying on the CLI from the model providers to be significantly more reliable.

I do like the integrations with the IDE however, they are convenient for rapidly reviewing changes. I just need their terminals to actually work!

I had this problem and it turns out it was my oh-my-posh command prompt customization. VS Code injects certain control characters into the output stream for agents to observe events and the theming runs after those mechanics are hooked up so it can interfere. Updating to the latest oh-my-posh fixed it for me.

Here's the oh-my-posh GH issue[0] in case your problem is similar but not solvable with a simple package update.

[0]: https://github.com/JanDeDobbeleer/oh-my-posh/issues/7029