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§ I · Domain ACT · Control 6 of 9
Control
ACT-06
Edition
v.1.3
Status
Public review

ACT · Action & Tool Use Controls

ACT-06Blast-radius limits

Blast-radius limits are enforced: maximum records modified per operation, maximum dollar value per transaction, maximum recipients per outbound message, and equivalent caps for other action classes.

Blast-radius limits prevent a single agent action from causing irreversible harm at scale. They are enforced by the integration layer (or by a guardrail proxy) rather than by trusting the agent itself. Limits cover records modified, monetary values, recipient counts, and equivalent caps for other action classes. Aggregate caps across multi-agent chains are governed by MAS-07.

Table ACT-06.1 · 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.

Blast-radius limits are documented and enforced for all high-impact action classes; limits are sized to the agent's purpose; limit values have been reviewed within the documented cadence; aggregate caps are enforced where MAS-07 applies.

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

    Blast-radius limits are documented and enforced for all high-impact action classes.

  2. E.2

    Limits are sized to the agent's purpose.

  3. E.3

    Limit values have been reviewed within the documented cadence.

  4. E.4

    Aggregate caps are enforced where MAS-07 applies.

Table ACT-06.2 · Framework mappings

6 of 7 frameworks carry a control-level reference
NIST AI RMFMANAGE 2.3NIST AI Risk Management Framework 1.0
ISO/IEC 42001·ISO/IEC 42001:2023 · Artificial intelligence management system
OWASP LLM Top 10LLM08OWASP Top 10 for Large Language Model Applications
SOC 2 (TSC)CC6.3, CC8.1AICPA Trust Services Criteria for SOC 2 Type II
EU AI ActArt. 15(3)EU AI Act · Regulation (EU) 2024/1689
MITRE ATLASImpactMITRE 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.

Related controls and terms

Cite this control

Human Intelligence. HI-AAF v1.3, ACT-06 Blast-radius limits. Public review edition, July 2026. https://humanintel.net/standard/act/act-06

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

https://humanintel.net/standard/act/act-06

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.