# Idempotent Side Effect

> Assign a stable operation identity, check whether the effect was already applied, execute only once, and return the same semantic result for repeated requests.

Record: `algorithms:idempotent-side-effect`
Kind: algorithm
Canonical: https://banes-lab.com/ontology/algorithms#algorithms-idempotent-side-effect
Closure: https://banes-lab.com/json/records/algorithms/idempotent-side-effect/closure

Listed in [Algorithm contracts](https://banes-lab.com/api/records/algorithms.md), after [Transaction Boundary](https://banes-lab.com/records/algorithms/transaction-boundary.md) and before [Deterministic Core](https://banes-lab.com/records/algorithms/deterministic-core.md).

## Domain

- [Architecture](https://banes-lab.com/records/algorithms-domain/architecture.md)

## Tier

- [leaf](https://banes-lab.com/records/vocabulary/domain-tier-leaf.md)

## Composed by

- [Idempotent Merge](https://banes-lab.com/records/algorithms/idempotent-merge.md)

## Math type

- [Logic](https://banes-lab.com/records/reasoning/math-type-logic.md)

## Force

- [Resilience recovery](https://banes-lab.com/records/force/resilience-recovery.md)
- [Semantic consistency](https://banes-lab.com/records/force/semantic-consistency.md)
- [State transaction](https://banes-lab.com/records/force/state-transaction.md)

## Linked from

- [Living profile](https://banes-lab.com/ontology/algorithms/algorithms-domain-living-profile.md)
- [The mathematics](https://banes-lab.com/ontology/reasoning/the-mathematics.md)
- [Domain tiers](https://banes-lab.com/ontology/schema/the-vocabulary-domain-tier.md)
- [The forces](https://banes-lab.com/ontology/schema/the-forces.md)