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

ACT · Action & Tool Use Controls · Critical

ACT-01Tool allowlist

Each agent has a documented tool allowlist. Tools outside the allowlist cannot be invoked at runtime.

The agent operates against a documented tool allowlist; tools outside the list are inaccessible at runtime. The allowlist is enforced by the integration layer, not by trusting the agent's own judgment. This is the foundational ACT control: without it, no other action-control is meaningful because the agent's capability surface is unbounded.

(Critical)A Critical failure precludes HI-AAF Certification regardless of the maturity level achieved on any other control.

Table ACT-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.

Allowlist is version-controlled, changes go through change management, and any tool call against a non-allowlisted target is logged and reviewed.

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

    Allowlist is version-controlled, changes go through change management, and any tool call against a non-allowlisted target is logged and reviewed.

Table ACT-01.2 · Framework mappings

7 of 7 frameworks carry a control-level reference
NIST AI RMFMAP 4.1, MEASURE 2.6NIST AI Risk Management Framework 1.0
ISO/IEC 42001A.8.4ISO/IEC 42001:2023 · Artificial intelligence management system
OWASP LLM Top 10LLM07, LLM08OWASP Top 10 for Large Language Model Applications
SOC 2 (TSC)CC6.3AICPA Trust Services Criteria for SOC 2 Type II
EU AI ActArt. 15(3)EU AI Act · Regulation (EU) 2024/1689
MITRE ATLASExecutionMITRE ATLAS · Adversarial Threat Landscape for AI Systems
SingaporeMAIGF Operations Management, AI Verify Human Agency & OversightSingapore 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.

Cite this control

Human Intelligence. HI-AAF v1.3, ACT-01 Tool allowlist. Public review edition, July 2026. https://humanintel.net/standard/act/act-01

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

https://humanintel.net/standard/act/act-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.