# leaf

> A domain whose contracts carry a math type and a yield and run at no loop stage.

Record: `vocabulary:domain-tier-leaf`
Kind: domain-tier
Canonical: https://banes-lab.com/ontology/schema#vocabulary-domain-tier-leaf

Listed in [Controlled vocabularies](https://banes-lab.com/api/records/vocabulary.md), after [process](https://banes-lab.com/records/vocabulary/domain-tier-process.md) and before [exempt](https://banes-lab.com/records/vocabulary/domain-tier-exempt.md).

## Tier of

- [Anti-Pattern Inversion](https://banes-lab.com/records/algorithms/anti-pattern-inversion.md)
- [Anti-Pattern Propagation Kernel](https://banes-lab.com/records/algorithms/anti-pattern-propagation-kernel.md)
- [Anti-Pattern Remediation Algebra](https://banes-lab.com/records/algorithms/anti-pattern-remediation-algebra.md)
- [Architecture Smell Record](https://banes-lab.com/records/algorithms/architecture-smell-record.md)
- [Anti-Pattern Rule Compiler](https://banes-lab.com/records/algorithms/anti-pattern-rule-compiler.md)
- [Smell Taxonomy](https://banes-lab.com/records/algorithms/smell-taxonomy.md)
- [Anti-Pattern Relationship Record](https://banes-lab.com/records/algorithms/anti-pattern-relationship-record.md)
- [<Architecture Anti-Pattern>](https://banes-lab.com/records/algorithms/architecture-anti-pattern.md)
- [Document Truth Alignment](https://banes-lab.com/records/algorithms/document-truth-alignment.md)
- [Architectural Contract Kernel](https://banes-lab.com/records/algorithms/architectural-contract-kernel.md)
- [Responsibility Boundary](https://banes-lab.com/records/algorithms/responsibility-boundary.md)
- [Coupling Control](https://banes-lab.com/records/algorithms/coupling-control.md)
- [Interface Contract](https://banes-lab.com/records/algorithms/interface-contract.md)
- [Substitutability](https://banes-lab.com/records/algorithms/substitutability.md)
- [Canonical Data](https://banes-lab.com/records/algorithms/canonical-data.md)
- [Domain Boundary](https://banes-lab.com/records/algorithms/domain-boundary.md)
- [Self-Description Manifest](https://banes-lab.com/records/algorithms/self-description-manifest.md)
- [Runtime Discovery](https://banes-lab.com/records/algorithms/runtime-discovery.md)
- [Extension Point](https://banes-lab.com/records/algorithms/extension-point.md)
- [Construction Boundary](https://banes-lab.com/records/algorithms/construction-boundary.md)
- [Structural Mediation](https://banes-lab.com/records/algorithms/structural-mediation.md)
- [Behavioral Dispatch](https://banes-lab.com/records/algorithms/behavioral-dispatch.md)
- [Architectural Style Boundary](https://banes-lab.com/records/algorithms/architectural-style-boundary.md)
- [Port Adapter](https://banes-lab.com/records/algorithms/port-adapter.md)
- [Event Messaging](https://banes-lab.com/records/algorithms/event-messaging.md)
- [Saga Compensation](https://banes-lab.com/records/algorithms/saga-compensation.md)
- [Transaction Boundary](https://banes-lab.com/records/algorithms/transaction-boundary.md)
- [Idempotent Side Effect](https://banes-lab.com/records/algorithms/idempotent-side-effect.md)
- [Deterministic Core](https://banes-lab.com/records/algorithms/deterministic-core.md)
- [Verification Fitness](https://banes-lab.com/records/algorithms/verification-fitness.md)
- [Error Boundary](https://banes-lab.com/records/algorithms/error-boundary.md)
- [Resilience Control](https://banes-lab.com/records/algorithms/resilience-control.md)
- [Recovery Deployment](https://banes-lab.com/records/algorithms/recovery-deployment.md)
- [Observability Trace](https://banes-lab.com/records/algorithms/observability-trace.md)
- [Causality Ordering](https://banes-lab.com/records/algorithms/causality-ordering.md)
- [Performance Scaling](https://banes-lab.com/records/algorithms/performance-scaling.md)
- [Cache Correctness](https://banes-lab.com/records/algorithms/cache-correctness.md)
- [Portability Environment](https://banes-lab.com/records/algorithms/portability-environment.md)
- [Security Policy](https://banes-lab.com/records/algorithms/security-policy.md)
- [Control Plane](https://banes-lab.com/records/algorithms/control-plane.md)
- [Declarative Metaprogramming](https://banes-lab.com/records/algorithms/declarative-metaprogramming.md)
- [Streaming Dataflow](https://banes-lab.com/records/algorithms/streaming-dataflow.md)
- [RAG Knowledge Boundary](https://banes-lab.com/records/algorithms/rag-knowledge-boundary.md)
- [Architecture Selection Meta-Algorithm](https://banes-lab.com/records/algorithms/architecture-selection-meta-algorithm.md)
- [Universal Architectural Concern Template](https://banes-lab.com/records/algorithms/universal-architectural-concern-template.md)
- [Architectural Contract Algebra](https://banes-lab.com/records/algorithms/architectural-contract-algebra.md)
- [Manifest-Driven Documentation](https://banes-lab.com/records/algorithms/manifest-driven-documentation.md)
- [Consumer Config SSOT](https://banes-lab.com/records/algorithms/consumer-config-ssot.md)
- [Finite State Machine](https://banes-lab.com/records/algorithms/finite-state-machine.md)
- [Statecharts](https://banes-lab.com/records/algorithms/statecharts.md)
- [Petri Nets](https://banes-lab.com/records/algorithms/petri-nets.md)
- [Queuing Theory](https://banes-lab.com/records/algorithms/queuing-theory.md)
- [Architectural Relationship Record](https://banes-lab.com/records/algorithms/architectural-relationship-record.md)
- [Architecture Knowledge Graph](https://banes-lab.com/records/algorithms/architecture-knowledge-graph.md)
- [Architectural Force Classification](https://banes-lab.com/records/algorithms/architectural-force-classification.md)
- [Dependency Closure](https://banes-lab.com/records/algorithms/dependency-closure.md)
- [Reinforcement Propagation](https://banes-lab.com/records/algorithms/reinforcement-propagation.md)
- [Conflict and Tension Resolution](https://banes-lab.com/records/algorithms/conflict-and-tension-resolution.md)
- [Severity Policy](https://banes-lab.com/records/algorithms/severity-policy.md)
- [Violation Detection](https://banes-lab.com/records/algorithms/violation-detection.md)
- [Measurement Normalization](https://banes-lab.com/records/algorithms/measurement-normalization.md)
- [Refactor Selection](https://banes-lab.com/records/algorithms/refactor-selection.md)
- [Enforcement Gate](https://banes-lab.com/records/algorithms/enforcement-gate.md)
- [Architecture Assessment](https://banes-lab.com/records/algorithms/architecture-assessment.md)
- [Modular Boundary Compliance](https://banes-lab.com/records/algorithms/modular-boundary-compliance.md)
- [Contract Compatibility](https://banes-lab.com/records/algorithms/contract-compatibility.md)
- [Canonical Semantics](https://banes-lab.com/records/algorithms/canonical-semantics.md)
- [Self-Description and Discovery](https://banes-lab.com/records/algorithms/self-description-and-discovery.md)
- [Runtime Extensibility](https://banes-lab.com/records/algorithms/runtime-extensibility.md)
- [Pattern Selection](https://banes-lab.com/records/algorithms/pattern-selection.md)
- [Event and Messaging Consistency](https://banes-lab.com/records/algorithms/event-and-messaging-consistency.md)
- [State and Transaction Safety](https://banes-lab.com/records/algorithms/state-and-transaction-safety.md)
- [Correctness Verification](https://banes-lab.com/records/algorithms/correctness-verification.md)
- [Resilience Policy](https://banes-lab.com/records/algorithms/resilience-policy.md)
- [Observability and Auditability](https://banes-lab.com/records/algorithms/observability-and-auditability.md)
- [Performance and Scalability](https://banes-lab.com/records/algorithms/performance-and-scalability.md)
- [Security Governance](https://banes-lab.com/records/algorithms/security-governance.md)
- [Architecture Evolution Governance](https://banes-lab.com/records/algorithms/architecture-evolution-governance.md)
- [Control Plane Coordination](https://banes-lab.com/records/algorithms/control-plane-coordination.md)
- [Metaprogramming Safety](https://banes-lab.com/records/algorithms/metaprogramming-safety.md)
- [Model Lifecycle Governance](https://banes-lab.com/records/algorithms/model-lifecycle-governance.md)
- [Architectural Recommendation](https://banes-lab.com/records/algorithms/architectural-recommendation.md)
- [Architecture Fitness Function Generation](https://banes-lab.com/records/algorithms/architecture-fitness-function-generation.md)
- [Architecture Refactoring Roadmap](https://banes-lab.com/records/algorithms/architecture-refactoring-roadmap.md)
- [Concept Cluster Extraction](https://banes-lab.com/records/algorithms/concept-cluster-extraction.md)
- [Architecture Decision Support](https://banes-lab.com/records/algorithms/architecture-decision-support.md)
- [Relationship Schema Validation](https://banes-lab.com/records/algorithms/relationship-schema-validation.md)
- [Architecture Catalog Compiler](https://banes-lab.com/records/algorithms/architecture-catalog-compiler.md)
- [Master Architecture Governance Kernel](https://banes-lab.com/records/algorithms/master-architecture-governance-kernel.md)
- [Architectural Relationship Algebra](https://banes-lab.com/records/algorithms/architectural-relationship-algebra.md)
- [Constraints Over Shortcuts](https://banes-lab.com/records/algorithms/no-shortcuts.md)
- [Forward Compatibility Over Backward Compatibility](https://banes-lab.com/records/algorithms/no-backward-compat.md)
- [Fail-Fast Over Fallback](https://banes-lab.com/records/algorithms/no-fallback.md)
- [Explicit Removal Over Deprecation](https://banes-lab.com/records/algorithms/no-deprecation.md)
- [Greenfield Over Legacy](https://banes-lab.com/records/algorithms/no-legacy.md)
- [Single-Path Determinism Over Dual-Path](https://banes-lab.com/records/algorithms/no-dual-path.md)
- [Immediacy Over Deferring](https://banes-lab.com/records/algorithms/no-deferring.md)
- [Mandatory Over Optional](https://banes-lab.com/records/algorithms/no-optional.md)
- [Now Over For-Now](https://banes-lab.com/records/algorithms/no-for-now.md)
- [Observed Execution Over Unobserved](https://banes-lab.com/records/algorithms/no-unobserved.md)
- [Compression Over Repetition](https://banes-lab.com/records/algorithms/no-uncompressed.md)
- [Approved Evolution Over Unapproved](https://banes-lab.com/records/algorithms/no-unapproved.md)
- [Enforced Feedback Over Ignored](https://banes-lab.com/records/algorithms/no-ignored-feedback.md)
- [Single Owner Over Shared Ownership](https://banes-lab.com/records/algorithms/no-shared-ownership.md)
- [Bounded Lifetime Over Unbounded](https://banes-lab.com/records/algorithms/no-unbounded.md)
- [Enforced Symmetry Over Asymmetric Lifecycle](https://banes-lab.com/records/algorithms/no-asymmetric.md)
- [Explicit Retention Over Implicit](https://banes-lab.com/records/algorithms/no-implicit-retention.md)
- [Structural Release Over Discipline](https://banes-lab.com/records/algorithms/no-discipline-release.md)
- [Immutable Data Over Mutable State](https://banes-lab.com/records/algorithms/no-mutable.md)
- [Errors As Language Over Silent Errors](https://banes-lab.com/records/algorithms/no-silent.md)
- [Explicit Invalidity Over Hidden](https://banes-lab.com/records/algorithms/no-hidden-invalidity.md)
- [Event Emission Over Parent Callbacks](https://banes-lab.com/records/algorithms/no-callbacks.md)
- [Monotonic Growth Over Retraction](https://banes-lab.com/records/algorithms/no-retraction.md)
- [Semantic Addressing Over Location Addressing](https://banes-lab.com/records/algorithms/no-location.md)
- [Ordinal Time Over Timestamps](https://banes-lab.com/records/algorithms/no-timestamps.md)
- [Homoiconicity Over Separation](https://banes-lab.com/records/algorithms/no-separation.md)
- [Bounded Complexity Over Unlimited](https://banes-lab.com/records/algorithms/no-unlimited.md)
- [Computed Health Over Metric Health](https://banes-lab.com/records/algorithms/no-metrics.md)
- [Secret Store Over Hardcoded Secrets](https://banes-lab.com/records/algorithms/no-hardcoded-secrets.md)
- [Boundary Validation Over Unvalidated Input](https://banes-lab.com/records/algorithms/no-unvalidated-input.md)
- [Least Privilege Over Broad Privilege](https://banes-lab.com/records/algorithms/no-broad-privilege.md)
- [Config Externalization Over Env Fallback](https://banes-lab.com/records/algorithms/no-env-fallback.md)
- [Profile-First Over Unmeasured Optimization](https://banes-lab.com/records/algorithms/no-unmeasured-optimization.md)
- [Rule As Code Over Convention](https://banes-lab.com/records/algorithms/no-convention-enforcement.md)
- [Design By Contract Over Implicit Contract](https://banes-lab.com/records/algorithms/no-implicit-contract.md)
- [Versioned Evolution Over Breaking Change](https://banes-lab.com/records/algorithms/no-breaking-change.md)
- [Schema-Validated Boundary Over Untyped](https://banes-lab.com/records/algorithms/no-untyped-boundary.md)
- [Atomic Boundary Over Partial Commit](https://banes-lab.com/records/algorithms/no-partial-commit.md)
- [Saga Compensation Over Distributed 2PC](https://banes-lab.com/records/algorithms/no-distributed-2pc.md)
- [Async Events Over Synchronous Cross-Boundary](https://banes-lab.com/records/algorithms/no-sync-cross-boundary.md)
- [Observable Signals Over Opaque Runtime](https://banes-lab.com/records/algorithms/no-opaque-runtime.md)
- [Injected Dependency Over Hidden](https://banes-lab.com/records/algorithms/no-hidden-dependency.md)
- [Convention Discovery Over Hardcoded Wiring](https://banes-lab.com/records/algorithms/no-hardcoded-wiring.md)
- [Declarative Config Over Imperative](https://banes-lab.com/records/algorithms/no-imperative-config.md)
- [Anti-Corruption Layer Over Cross-Context Leak](https://banes-lab.com/records/algorithms/no-leaky-context.md)
- [Injected Nondeterminism Over Hidden](https://banes-lab.com/records/algorithms/no-hidden-nondeterminism.md)
- [Pattern By Fit Over Speculative Pattern](https://banes-lab.com/records/algorithms/no-speculative-pattern.md)
- [Cascade Layer Partition](https://banes-lab.com/records/algorithms/cascade-layer-partition.md)
- [Token Source-of-Truth](https://banes-lab.com/records/algorithms/token-source-of-truth.md)
- [Type-Keyed Appearance](https://banes-lab.com/records/algorithms/type-keyed-appearance.md)
- [Custom Type Registration](https://banes-lab.com/records/algorithms/custom-type-registration.md)
- [Governed Construction Boundary](https://banes-lab.com/records/algorithms/governed-construction-boundary.md)
- [Placement Isolation](https://banes-lab.com/records/algorithms/placement-isolation.md)
- [Assembly Composition](https://banes-lab.com/records/algorithms/assembly-composition.md)
- [Layer Fitness Enforcement](https://banes-lab.com/records/algorithms/layer-fitness-enforcement.md)
- [Type-Migration Centralization](https://banes-lab.com/records/algorithms/type-migration-centralization.md)
- [CSS Type-Cascade Kernel](https://banes-lab.com/records/algorithms/css-type-cascade-concern.md)

## Linked from

- [Anti-patterns](https://banes-lab.com/ontology/algorithms/algorithms-domain-anti-patterns.md)
- [Architecture](https://banes-lab.com/ontology/algorithms/algorithms-domain-architecture.md)
- [Architecture relationships](https://banes-lab.com/ontology/algorithms/algorithms-domain-arch-relationships.md)
- [Architectural Rules](https://banes-lab.com/ontology/algorithms/algorithms-domain-architectural-rules.md)
- [CSS cascade](https://banes-lab.com/ontology/algorithms/algorithms-domain-css-cascade.md)