# Hidden Behavior

> Behavior triggered by hidden state or side effects, so outcomes surprise callers.

Record: `lexicon:hidden-behavior`
Kind: anti-pattern
Layer: [Computation Core](https://banes-lab.com/records/layer/computation-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-hidden-behavior

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Floating Dependencies](https://banes-lab.com/records/lexicon/floating-dependencies.md) and before [Hidden IO](https://banes-lab.com/records/lexicon/hidden-io.md).

## Category

- [Correctness / Determinism / Verification](https://banes-lab.com/records/lexicon-category/correctness-determinism-verification.md)

## Negated by

- [Predictability](https://banes-lab.com/records/architecture/predictability.md)

## Linked from

- [Correctness / Determinism / Verification](https://banes-lab.com/ontology/principles/architecture-category-correctness-determinism-verification.md)
- [Schema / Canonical Data / Semantics](https://banes-lab.com/ontology/principles/architecture-category-schema-canonical-data-semantics.md)