Architecture-to-Module Mapping

Architecture concern	Module	Primary artifacts
Agent identity and aliases	Core	Agent Core, Identifier Alias
Description integrity	Core	Agent Description Reference
Keys and endpoints	Core	Key Binding, Service Endpoint
Lifecycle and history	Core	Status, Event
Operator/controller/accountability graph	Relations	Relationship
Capability claims	Assurance	Capability Declaration, Capability Verification
Independent evaluation	Assurance	Assurance Claim
Delegation and scope	Authority	Authority Envelope
Decision explanation	Authority	Decision Receipt
Execution reconstruction	Evidence	Execution Receipt, Evidence references
Contestability	Evidence/Relations	Redress Record, Governance Record
Cross-registry reliance	Federation	Recognition Record

Normative requirement identifiers in future revisions SHOULD use the form ARPA-<MODULE>-<NUMBER> so implementation reports can provide direct traceability.