# terrain-op-id-duplicate

> Talos 0.6 · Since 0.6

Two ops of a terrain file's `stack` share an `id`. The id seeds the op and names it in agent tools, so it must be unique.

| | |
|---|---|
| Severity | `error` |
| Source | `contract` |
| Offers a fix patch | no |

## Components it can refuse

- `terrain`

## Since / changed

See the version chips above and what changed.