# Non-Idempotent Operation

> An operation whose repetition changes the result, making it unsafe to retry.

Record: `lex:non-idempotent-operation`
Kind: anti-pattern
Layer: [Correctness Core](https://banes-lab.com/records/layer/correctness-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lex-non-idempotent-operation

## category

- [Error Handling / Resilience](https://banes-lab.com/records/lex-category/error-handling-resilience.md)

## referenced-by

- [Retry Pattern](https://banes-lab.com/records/arch/retry-pattern.md)