# Error-Code Tag

> A formal definition of the tag for a file that declares the stable codes callers match failures on, filed in an error-codes folder.

Record: `lexicon:error-code-tag`
Kind: artifact
Layer: [Structural Core](https://banes-lab.com/records/layer/structural-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-error-code-tag

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Result Tag](https://banes-lab.com/records/lexicon/result-tag.md) and before [Error-Boundary Tag](https://banes-lab.com/records/lexicon/error-boundary-tag.md).

## Category

- [Operations Concerns](https://banes-lab.com/records/lexicon-category/operations-concerns.md)