# Mutable State Only

> Keeping only mutable current state with no event record, so past states and changes cannot be recovered.

Record: `lex:mutable-state-only`
Kind: anti-pattern
Layer: [Execution Core](https://banes-lab.com/records/layer/execution-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lex-mutable-state-only

## category

- [Event Messaging Async](https://banes-lab.com/records/lex-category/event-messaging-async.md)

## referenced-by

- [Event Stream](https://banes-lab.com/records/arch/event-stream.md)