{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "kb://schemas/composition.schema.json",
  "title": "Mechanism composition knowledge entry",
  "type": "object",
  "required": ["schema_version", "id", "version", "composition_type", "source_port_types", "target_port_types", "connection_relation", "constraint_rules", "capability_refs", "execution_support", "maturity"],
  "properties": {
    "schema_version": {"const": "1.0"},
    "id": {"type": "string", "pattern": "^composition\\."},
    "version": {"type": "string"},
    "composition_type": {"type": "string"},
    "source_port_types": {"type": "array", "items": {"type": "string"}},
    "target_port_types": {"type": "array", "items": {"type": "string"}},
    "connection_relation": {"type": "string"},
    "allowed_role_pairs": {"type": "array", "items": {"type": "object"}},
    "constraint_rules": {"type": "array", "items": {"type": "string"}},
    "capability_refs": {"type": "array", "items": {"type": "string"}},
    "execution_support": {"type": "object"},
    "maturity": {"type": "string"}
  },
  "additionalProperties": false
}