# Tolerant Reader

> A technique for reading only the fields a consumer needs and ignoring unknown ones, so additive changes do not break it.

Record: `lexicon:tolerant-reader`
Kind: technique
Layer: [Contracts Core](https://banes-lab.com/records/layer/contracts-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-tolerant-reader

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Standardize the Interface](https://banes-lab.com/records/lexicon/standardize-the-interface.md) and before [Central Orchestrator Bottleneck](https://banes-lab.com/records/lexicon/central-orchestrator-bottleneck.md).

## Category

- [Contracts / Interfaces / Compatibility](https://banes-lab.com/records/lexicon-category/contracts-interfaces-compatibility.md)

## Refactors

- [Forward Compatibility](https://banes-lab.com/records/architecture/forward-compatibility.md)
- [Forward-Only Processing](https://banes-lab.com/records/architecture/forward-only-processing.md)

## Linked from

- [Contracts / Interfaces / Compatibility](https://banes-lab.com/ontology/principles/architecture-category-contracts-interfaces-compatibility.md)
- [Streaming / Pipeline / Dataflow Processing](https://banes-lab.com/ontology/principles/architecture-category-streaming-pipeline-dataflow-processing.md)