# Contracts Core

> The rules governing interfaces and contracts — explicit typed boundaries, versioned change, no implicit or breaking contracts.

Record: `algo:contracts-core`
Kind: Architectural Clusters
Layer: [Contracts Core](https://banes-lab.com/records/layer/contracts-core.md)
Canonical: https://banes-lab.com/ontology/algorithms#algo-contracts-core
Closure: https://banes-lab.com/json/records/algo/contracts-core/closure

## composed-by

- [Design By Contract Over Implicit Contract](https://banes-lab.com/records/algo/no-implicit-contract.md)
- [Versioned Evolution Over Breaking Change](https://banes-lab.com/records/algo/no-breaking-change.md)
- [Schema-Validated Boundary Over Untyped](https://banes-lab.com/records/algo/no-untyped-boundary.md)