req-1: How do I roll back production?
  model  call with 1 contents
  event call   state_delta={} stored[last_page]=None metadata={'request_id': 'req-1'}
  tool   request_id=req-1 state[last_page]='rollback' stored[last_page]=None
  event result state_delta={'last_page': 'rollback'} stored[last_page]='rollback' metadata={'request_id': 'req-1'}
  model  call with 3 contents
  event answer state_delta={} stored[last_page]='rollback' metadata={'request_id': 'req-1'}
  answer: Run `shipctl rollback --env production` to roll back to the previous release. To roll back to a specific release, use `--to`:

```bash
shipctl rollback --env production --to <release>
```
req-2: Which page covers CI tokens?
  model  call with 5 contents
  event call   state_delta={} stored[last_page]='rollback' metadata={'request_id': 'req-2'}
  tool   request_id=req-2 state[last_page]='tokens' stored[last_page]='rollback'
  event result state_delta={'last_page': 'tokens'} stored[last_page]='tokens' metadata={'request_id': 'req-2'}
  model  call with 7 contents
  event answer state_delta={} stored[last_page]='tokens' metadata={'request_id': 'req-2'}
  answer: The **tokens** page covers CI tokens.
req-3: What was my first question?  (num_recent_events=4)
  model  call with 5 contents
  event answer state_delta={} stored[last_page]='tokens' metadata={'request_id': 'req-3'}
  answer: Your first question was: "Which page covers CI tokens?"
