# Cost Co-pilot

The Co-pilot suggests savings from your own metered data.

```sh
harebox copilot
harebox copilot forecast
```

| Kind | Suggests |
|---|---|
| `enable_sleep` | Letting a low-CPU sandbox sleep |
| `resize` | A smaller size |
| `set_budget` | A budget, if you have none |

It never suggests Spot or a reservation: both cost the same as Shared, so neither saves money. (The `move_to_spot` and `reserve` kinds stay in the API so older clients keep parsing.)

Savings are always given as a range, with evidence and a risk. It's a rules engine, so its numbers come from the meter and never from a model's guess.