Governing what acts on its own

An agent's behavior is composed at runtime, not fixed before deployment. That breaks four assumptions of ordinary software governance — and this page walks the first two: safety and security stop being separable, and assurance moves from a snapshot to a continuous loop.

Part XII of the reference names the threats and the controls that answer them. Governance answers the organizational question those raise: how do you assure a system whose behavior you cannot fully describe before it runs? The primary source is the OWASP Agentic Security Initiative's State of Agentic AI Security and Governance (v2.01, 2026).

Safety and security converge at the deployment layer

For most of software history these were separate disciplines with separate owners. Agentic autonomy collapses the distinction — but only at the deployment layer the deploying organization owns; model-level safety stays a distinct discipline owned by the provider.

AI Security

Risks from trust-boundary violations: an attacker, malicious content, or unauthorized access enables influence that should not have been possible.

“Was a trust boundary crossed that should have held?”

AI Safety

Risks from normal operation: the system causes harm not because someone attacked it, but because its capabilities, defaults, or design permit harmful outcomes.

“Could this system cause harm through normal operation?”

TrendAI SafetyAI SecurityConvergence effect
Expanding tool accessLarger blast radius when the agent misuses a capability on its own (including via indirect prompt injection from retrieved content)Larger blast radius when an adversary triggers that misuse through injectionThe same permission surface governs both failure modes
Reduced human oversightNarrower window to catch a non-adversarial error before harmNarrower window to detect adversarial manipulation before the agent actsThe same oversight gap enables both categories
Multi-agent architecturesA safety failure in one agent (hallucination, goal drift) propagates to othersA compromised agent becomes the attack vector against downstream agentsA single causal chain crosses the safety–security boundary
Agentic supply-chain growthThe agent invokes a poorly built tool that returns unreliable outputThe agent invokes a malicious tool that exfiltrates data or poisons contextThe same discovery and invocation path carries both risks

The convergence scales with autonomy: for a low-autonomy or human-gated agent the categories stay usefully separable; for an agent with broad permissions and minimal oversight they are dimensions of a single risk surface — governed, monitored, and responded to together, because the telemetry that detects one produces the telemetry needed for the other.

Identity is the new control plane

A Non-Human Identity answers one question, once, at session start: is this entity allowed to connect? An agent reasons, delegates, and discovers tools at runtime, so the question becomes what is it doing right now, and is it still allowed to — governed at the moment of each action, not just at entry.

Three cryptographic assertions

Provenance (the agent's code, weights, and runtime are intact), Attestation (the identity is what it claims — altered agents are denied tokens), and Intent (the action is within a declared, bounded purpose).

What separates an agent identity from a service account
  • Ephemeral, just-in-time credentials scoped to the current reasoning step and revoked on workflow completion — not long-lived static scopes.
  • Delegation chains that cryptographically bind a request to the originating principal (OAuth Token Exchange, RFC 8693), so a downstream tool refuses to act as a confused deputy.
  • A registry — an Agent Name Service (DNS-inspired, PKI-backed) — so decommissioned agents cannot linger as ghost agents with valid identities.

Each item is a pattern this reference already names, enforced at the credential layer: ephemeral scoping is Least Privilege Agent; attestation is the Audit Trail's provenance requirement.

Runtime governance, not static compliance

Pre-deployment certification loses meaning the moment an agent begins to run, accumulates context, loads tools dynamically, or modifies itself — the certified artifact is not the running system. Regulators agree: the EU AI Act (Art. 72) demands continuous lifetime monitoring, which functionally requires drift detection.

Four runtime capabilities most organizations still lack
  1. Real-time behavioral monitoring, including plan-divergence detection — the agent's actual action sequence against its declared intent.
  2. Consequence-aware authorization — evaluating what the agent is doing, not merely inheriting the operator's standing permissions.
  3. Automated incident classification fast enough for compressed reporting windows (DORA 4h, NIS2 24h, RAISE 72h).
  4. Trajectory-level explainability — a runtime-composed trajectory was never anticipated at assessment time, so explainability that relies on static classification fails.
The operational envelope

Governance becomes watching for when the agent departs from the bounded set of behaviors actually assessed and found compliant — and escalating when it does. The same monitoring infrastructure — tool-invocation logging, permission-chain auditing, anomaly detection, plan-divergence analysis — serves security detection and regulatory evidence at once.

Two heuristics for bounding agent risk

Both compress the guidance above into a design test you can apply before shipping. They share the same three properties.

The lethal trifecta

Willison, 2025 — the three properties whose combination makes prompt injection exploitable end-to-end. Hold all three in one session and a single injection completes the whole chain. Break the triad by removing any one leg.

  1. 1

    Access to private data

    The agent can read sensitive or private information.

  2. 2

    Exposure to untrusted content

    Any text or data an attacker can get in front of the model.

  3. 3

    Ability to communicate externally

    A channel usable to exfiltrate or change state outside the boundary.

The Rule of Two

Meta, 2025 — the design constraint over the same three properties: within a session with no trusted human in the loop, satisfy at most two. An agent that needs all three must be gated by human approval. A pick-≤2 boundary, not a fix — it bounds exposure rather than eliminating it.

✓Access to private data✓Exposure to untrusted content—Ability to communicate externally

The frameworks

Where the durable frameworks attach

This project names half a dozen external frameworks in passing. They are not interchangeable: three govern a programme, three classify what an attacker did, and one is a scale. Only the taxonomies attach to a pattern — the management instruments attach to the organization around it.

FrameworkWhat question it answersWhere it attaches here
NIST AI RMF 1.0AI 100-1, 2023 · GenAI profile AI 600-1, 2024How do we organize risk work? Four functions — Govern, Map, Measure, Manage — plus a GenAI-specific profile of the same structure.The maturity model
ISO/IEC 420012023Can an auditor certify how we run AI? The certifiable management-system standard. Not harmonized under the EU AI Act, so certification grants no presumption of conformity.The governance programme around the system — not a pattern inside it
EU AI ActRegulation (EU) 2024/1689What does the law require? Obligations by risk class: human oversight (Art. 14), accuracy and robustness (Art. 15), serious-incident reporting (Art. 73).The runtime-governance argument above
MITRE ATLAScontent v2026.06What did the attacker do to the AI system? An adversary-technique taxonomy for machine-learning and GenAI systems.The threat catalogs
MITRE ATT&CK · CWEv19.1 · 4.20What did the attacker do to everything else, and which defect let them? The classic technique catalog and the root-cause weakness taxonomy.Red teaming — once a tool call reaches a shell or a database, the incident is an ordinary one
CSA AI Controls Matrixv1.1, 2026Which controls do we claim, and who checks them? A control matrix in the lineage of the Cloud Controls Matrix.The control crosswalk
OWASP AIVSSv0.8How bad is this one, in a number? Scoring for agentic risks, with an autonomy premium over the base score.Prioritizing the threat catalogs

No control mapping is maintained here. OWASP's Top 10 for LLM Applications 2026 carries one in its Appendix A — every entry mapped to ASI, DSGAI, ATLAS, ATT&CK, CWE, NIST and the CSA matrix, with each version pinned. It moves when the catalog moves; a second copy would only drift. The version stamps in the table come from that appendix and age the same way.

All frameworks in the bibliography →

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