Agentic AI Reference Architecture

Human Oversight · Data store

Approval Request Store

Data storeHuman OversightExperience & Human Oversightarc:ApprovalRequestStore

A durable store of serialized approval requests capturing pending action, analysed context, agent reasoning, eligible approvers, creation time, status and timeout, persisted independently of agent execution.

Responsibility. Persists approval workflow state so paused agents can resume across process lifecycles.

Also known as: Approval state store, Persistent approval queue

is written by; is read byis read by; is written byis audited byis written byis read byis read byis written byis read byis read byApproval Gateway: is written by; is read byApproval GatewayApproval Escalation Scheduler: is read by; is written byApproval Escalation Sche…Compliance Officer: is audited byCompliance OfficerApproval Router: is written byApproval RouterOversight Performance Monitor: is read byOversight Performance Mo…Approval Outcome Router: is read byApproval Outcome RouterApproval Proposal Builder: is written byApproval Proposal BuilderAdaptive Threshold Tuner: is read byAdaptive Threshold TunerApproval Request Batcher: is read byApproval Request Batcher
Direct neighbourhood (hover for relationship types)

Relationships

is read by dependency

is written by dependency

is audited by assurance

Classification

Patterns
Approval requests as first-class entitiesState serialization
Quality attributes
Reliability (ISO/IEC 25010 | NIST AI RMF: valid and reliable)Transparency and accountability (NIST AI RMF: accountable and transparent)
Risks mitigated
Lost approvals on crash or rescheduleDuplicate approvals for overlapping requests

Sources

  1. Ch9.2: T. Nguyen, "Action Constraints and Permission Models," in Mastering Agentic AI Systems: Guide for the NVIDIA NCP-AAI Exam, 1st ed. 2026, ch. 9.2. ISBN: 9798244538229.
  2. Ch10.4: T. Nguyen, "Human-in-the-Loop," in Mastering Agentic AI Systems: Guide for the NVIDIA NCP-AAI Exam, 1st ed. 2026, ch. 10.4. ISBN: 9798244538229.