Generalist agent hangs

### What happened?

Hey! Whenever `gemini-cli` defers to the generalist agent it hangs forever. Simple changes like folder creation hang. I've let it wait for up to an hour before cancelling it.

Instructing the model not to defer to sub agents resolves this issue. After instructing it to not use sub agents, it quickly performs the task.

There is no hint as to what is causing it to hang. I have tried running it with `--debug`, but I haven't gotten more information about root cause.

### What did you expect to happen?

To perform the requested action in a reasonable amount of time.

### Client information

Client Information

Run `gemini` to enter the interactive CLI, then run the `/about` command.

```console
> /about
│ About Gemini CLI │
│ │
│ CLI Version 0.32.1 │
│ Git Commit e8a57c78c │
│ Model Auto (Gemini 3) │
│ Sandbox no sandbox │
│ OS linux │
│ Auth Method Logged in with Google (xxxxx@xxxxx.xxx) │
│ Tier Gemini Code Assist for individuals
```

### Login information

Google account

### Anything else we need to know?

_No response_