# Silent Failure

> A failure that occurs without surfacing any error, log, or signal, leaving it undetected.

Record: `lexicon:silent-failure`
Kind: anti-pattern
Layer: [Structural Core](https://banes-lab.com/records/layer/structural-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-silent-failure

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Ownership](https://banes-lab.com/records/lexicon/ownership.md) and before [Message Contract](https://banes-lab.com/records/lexicon/message-contract.md).

## Category

- [Core Vocabulary](https://banes-lab.com/records/lexicon-category/core-vocabulary.md)

## Negated by

- [Fail Fast](https://banes-lab.com/records/architecture/fail-fast.md)
- [Logging](https://banes-lab.com/records/architecture/logging.md)
- [Alerting](https://banes-lab.com/records/architecture/alerting.md)

## Linked from

- [Error Handling / Resilience](https://banes-lab.com/ontology/principles/architecture-category-error-handling-resilience.md)
- [Observability / Auditability / Traceability](https://banes-lab.com/ontology/principles/architecture-category-observability-auditability-traceability.md)
- [Failure shapes](https://banes-lab.com/ontology/reasoning/the-failure-shapes.md)