# Diagnostics

> The ability to inspect a running system's own structure and state to diagnose it.

Record: `lexicon:diagnostics`
Kind: capability
Layer: [Declarative Core](https://banes-lab.com/records/layer/declarative-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-diagnostics

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Runtime Type Metadata](https://banes-lab.com/records/lexicon/runtime-type-metadata.md) and before [Self-Describing Systems](https://banes-lab.com/records/lexicon/self-describing-systems.md).

## Category

- [Metaprogramming / Language-Oriented Architecture](https://banes-lab.com/records/lexicon-category/metaprogramming-language-oriented-architecture.md)

## Enabled by

- [Introspection](https://banes-lab.com/records/architecture/introspection.md)

## Linked from

- [Metaprogramming / Language-Oriented Architecture](https://banes-lab.com/ontology/principles/architecture-category-metaprogramming-language-oriented-architecture.md)
- [Core Vocabulary](https://banes-lab.com/ontology/lexicon/lexicon-category-core-vocabulary.md)