# Stateful Hidden Accumulation

> Accumulating state inside a processor across records, so results depend on invisible history.

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

## category

- [Streaming / Pipeline / Dataflow Processing](https://banes-lab.com/records/lex-category/streaming-pipeline-dataflow-processing.md)

## referenced-by

- [Stateless Processing](https://banes-lab.com/records/arch/stateless-processing.md)