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§ I · Domain MAS · Control 1 of 9
Control
MAS-01
Edition
v.1.3
Status
Public review

MAS · Multi-Agent Systems

MAS-01Multi-agent topology documentation

The multi-agent topology is documented: which agents are orchestrators, which are workers or sub-agents, what calls are permitted between each interface, what data passes across each interface, and which external agents participate.

The multi-agent topology is documented as part of the Behavior Charter (GOV-02) for each participating agent. Documentation covers which agents are orchestrators, which are workers or sub-agents, what calls are permitted between each interface, what data passes across each interface, and which external agents (if any) participate. Without this documentation, no other MAS control is assessable.

Table MAS-01.1 · Maturity criteria · v.1.3

L1 to L5 · the lowest level in scope caps the agent
L1Ad hoc

Controls exist informally; documentation is incomplete; no consistent review.

L2Documented

Controls are written down; ownership is assigned; review cadence is defined.

L3Operated

Controls are followed in practice; evidence is collected; deviations are tracked.

Topology documentation exists for all multi-agent systems; documentation is current within the Behavior Charter review cadence; the topology covers all participating agents including external agents; changes to topology go through change management.

L4Measured

Control effectiveness is measured against documented thresholds; trends are reported.

L5Continuously Improved

Controls evolve based on incident learning; maturity gains are evidenced over time.

The v1.3 edition publishes a control-specific criterion at L3 (Operated). The other levels apply the general ladder to this control; see the maturity ladder.

Evidence an assessor asks for

  1. E.1

    Topology documentation exists for all multi-agent systems.

  2. E.2

    Documentation is current within the Behavior Charter review cadence.

  3. E.3

    The topology covers all participating agents including external agents.

  4. E.4

    Changes to topology go through change management.

Table MAS-01.2 · Framework mappings

4 of 7 frameworks carry a control-level reference
NIST AI RMFGOVERN 6.1NIST AI Risk Management Framework 1.0
ISO/IEC 42001·ISO/IEC 42001:2023 · Artificial intelligence management system
OWASP LLM Top 10·OWASP Top 10 for Large Language Model Applications
SOC 2 (TSC)CC2.1AICPA Trust Services Criteria for SOC 2 Type II
EU AI ActArt. 25(1)EU AI Act · Regulation (EU) 2024/1689
MITRE ATLAS·MITRE ATLAS · Adversarial Threat Landscape for AI Systems
SingaporeMAIGF AccountabilitySingapore Model AI Governance Framework / AI Verify / PDPA

Mappings are directional: meeting this control evidences but does not by itself satisfy the external requirement. A middle dot means no control-level reference is published at this edition; see the crosswalk.

Related controls and terms

Cite this control

Human Intelligence. HI-AAF v1.3, MAS-01 Multi-agent topology documentation. Public review edition, July 2026. https://humanintel.net/standard/mas/mas-01

Edition v.1.3 · July 2026 · Public review · Markdown · PDF

https://humanintel.net/standard/mas/mas-01

Notice

HI-AAF v1.3 is an independent framework published by Human Intelligence. It is not affiliated with NIST, ISO, AICPA, or any government or accreditation body. The framework is offered openly for review during the current draft cycle.