Source of truth for implementation is the canonical schema host:
https://schemas.meta-aiml.org/v3.0.0/. If any page text conflicts with canonical schema files, follow canonical files. Documentation home.META-AIML v3 Documentation
Canonical entry for schema architecture, entity contracts, validation behavior, and implementation tooling.
v3.0.0
31 Entity Contracts
Ontology + Archetypes + Components
Ontology
5 canonical ontology contracts.
Archetypes
5 interaction archetype contracts.
Entities
All 31 canonical entity schema contracts.
Modules
Cross-entity module contracts and constraints.
Components
Reusable component formats and shared defs.
Validation
Score model, critical gates, and quality checks.
Canonical v3 Files
https://schemas.meta-aiml.org/v3.0.0/ - version root.
https://schemas.meta-aiml.org/v3.0.0/ontology/ - ontology contracts.
https://schemas.meta-aiml.org/v3.0.0/archetypes/ - archetype contracts.
https://schemas.meta-aiml.org/v3.0.0/components/ - shared components.
https://schemas.meta-aiml.org/v3.0.0/entity/ - canonical entity contracts.
https://schemas.meta-aiml.org/v3.0.0/examples/ - canonical example instances.
https://schemas.meta-aiml.org/v3.0.0/sdk/ - validator SDK and support files.