# Observability

> The rules ensuring a system is observable — emitted metrics and signals, no unobserved execution, no opaque runtime.

Record: `algorithms:observability`
Kind: algorithm
Layer: [Observability](https://banes-lab.com/records/layer/observability.md)
Canonical: https://banes-lab.com/ontology/algorithms#algorithms-observability
Closure: https://banes-lab.com/json/records/algorithms/observability/closure

Listed in [Algorithm contracts](https://banes-lab.com/api/records/algorithms.md), after [Extensibility Core](https://banes-lab.com/records/algorithms/extensibility-core.md) and before [Enforcement Core](https://banes-lab.com/records/algorithms/enforcement-core.md).

## Domain

- [Architectural Clusters](https://banes-lab.com/records/algorithms-domain/architectural-clusters.md)

## Tier

- [exempt](https://banes-lab.com/records/vocabulary/domain-tier-exempt.md)

## Principle

- [Observability](https://banes-lab.com/records/architecture/observability.md)

## Composed by

- [Observed Execution Over Unobserved](https://banes-lab.com/records/algorithms/no-unobserved.md)
- [Computed Health Over Metric Health](https://banes-lab.com/records/algorithms/no-metrics.md)
- [Observable Signals Over Opaque Runtime](https://banes-lab.com/records/algorithms/no-opaque-runtime.md)

## Contract of

- [Observability](https://banes-lab.com/records/layer/observability.md)

## Linked from

- [Observability / Auditability / Traceability](https://banes-lab.com/ontology/principles/architecture-category-observability-auditability-traceability.md)
- [Architectural Rules](https://banes-lab.com/ontology/algorithms/algorithms-domain-architectural-rules.md)
- [Domain tiers](https://banes-lab.com/ontology/schema/the-vocabulary-domain-tier.md)
- [The layer topology](https://banes-lab.com/ontology/schema/the-layer-topology.md)