Comparison

Workiva vs Trussed: AI Disclosure Reporting vs Runtime Evidence

Disclosure and reporting platforms like Workiva aggregate self-reported inputs into structured filings at defined intervals. Runtime evidence platforms like Trussed AI capture telemetry directly from AI agent execution as it happens. Most governance programs need both, but only runtime evidence can demonstrate that a control was actually enforced.

Disclosure and reporting platforms, of which Workiva is a widely used example in enterprise GRC and compliance workflows, are built to collect structured information from people and turn it into filings, reports, and attestations. In an AI governance context, this typically means questionnaires about model use, policy checklists completed by control owners, and narrative descriptions of how AI systems are supposed to operate. The output is a document: accurate to the extent the inputs are accurate, but not independently verified by the platform itself. This is a reporting layer, not an observation layer. It answers the question "what have we said our AI systems do" rather than "what did our AI systems actually do." That distinction matters more as AI agents take autonomous actions between reporting cycles, because a disclosure completed last quarter cannot reflect a tool permission or agent configuration changed last week.

What Runtime Evidence Captures That Disclosure Cannot

Runtime evidence refers to telemetry generated directly by AI agent execution: which tools an agent called, what data it accessed, which policy checks fired, and whether an action was allowed or blocked. This requires instrumentation at the point where agents actually act, such as orchestration layers, API gateways, or policy enforcement points, rather than a form filled out after the fact. Because the record is generated by the system itself at the moment of action, it does not depend on a person accurately remembering or reporting what happened. This is the structural reason runtime evidence and disclosure reporting are not interchangeable. One documents intended state. The other documents observed behavior. Auditors and regulators increasingly distinguish between evidence that a policy exists and evidence that a policy was enforced in practice, and only the latter is produced at runtime.

Disclosure Reporting vs Runtime Evidence

The two approaches operate at different layers of a governance program and produce fundamentally different kinds of records.

Two Different Layers of AI Governance

Disclosure Reporting

Structured filings built from questionnaires, attestations, and policy checklists submitted by humans on a periodic cycle.

Runtime Evidence

Time-stamped records of actual agent actions, tool calls, and policy checks captured as they occur at the point of execution.

Layered Governance

Disclosure for board and regulatory reporting, runtime evidence for control verification and audit defense.

Where Each Approach Fits in an AI Governance Program

Neither disclosure reporting nor runtime evidence is a complete governance program on its own. Disclosure reporting serves board reporting, regulatory filings, and stakeholder communication, where a structured narrative of policy and intent is the expected artifact. Runtime evidence serves control verification and audit defense, where the question is whether a specific policy was actually enforced when an agent attempted a specific action. A governance program that relies only on disclosure reporting has no built-in mechanism to detect a gap between what was reported and what the system actually did between cycles. A governance program that relies only on runtime evidence may generate detailed technical records without a structured way to communicate posture to non-technical stakeholders. Most mature programs use both layers deliberately, rather than treating one as a substitute for the other.

Evaluation Criteria for Governance Leaders

When comparing tools in this category, governance leaders should work through the following questions:

  • Determine whether the tool generates evidence from live system behavior or compiles self-reported inputs.
  • Confirm whether outputs can be checked against underlying system logs or depend entirely on human attestation.
  • Ask how frequently evidence updates relative to changes in agent configuration, tools, or permissions.
  • Clarify whether the platform can observe or intervene in agent behavior, or only document it after the fact.
  • Map specific audit and regulatory obligations to whether they require documented policy, demonstrated enforcement, or both.

Frequently Asked Questions

Can disclosure reporting alone satisfy an AI audit?

It depends on what the audit requires. If the requirement is documented policy and intent, disclosure reporting may be sufficient. If the requirement is proof of control effectiveness in practice, disclosure reporting alone will not produce that evidence.

Is runtime evidence a replacement for governance reporting?

No. Runtime evidence documents technical enforcement, not board-level narrative or regulatory filings. Most programs need structured reporting for stakeholder communication alongside runtime evidence for control verification.

How often should AI governance evidence be updated?

Disclosure reporting is typically updated on a fixed cycle. Runtime evidence is generated continuously as agents act, which matters when agent configurations or permissions change between reporting periods.

Determine What Your Governance Program Actually Requires

Map your audit and regulatory obligations against disclosure reporting and runtime evidence before deciding which layer, or combination, your program needs.

Explore Runtime Governance