---
title: disallowed
framework: evaluations
role: symbol
role_heading: Instance Property
path: evaluations/trajectoryexpectation/disallowed
---

# disallowed

Tools that the model must NOT call.

## Declaration

```swift
var disallowed: [ToolExpectation]
```

## Discussion

Discussion If a disallowed expectation includes argument matchers, only calls matching those specific arguments trigger a failure — the model can still call the tool with different arguments.

## See Also

### Combining expectations

- [ordered](evaluations/trajectoryexpectation/ordered.md)
- [unordered](evaluations/trajectoryexpectation/unordered.md)
- [allowsAdditionalCalls](evaluations/trajectoryexpectation/allowsadditionalcalls.md)