Agentic workflows need evidence that explains what happened, not just logs that prove something ran.
That distinction matters. In an enterprise workflow, the important questions are often business questions: who approved this, which release was live, why did the run branch, what did the agent recommend, which system was updated, and what artifact was produced?
Kora separates these concerns into different evidence layers instead of forcing everything into one giant log.
That evidence model is central to the Kora workflow operating system thesis.
1. Audit and run evidence are different
Audit records and run evidence answer different questions.
Audit records explain who changed access, configuration, live workflow versions, artifact retention, or other sensitive controls.
Run evidence explains what happened inside a workflow: steps, tasks, system actions, decisions, failures, retries, agent recommendations, artifacts, and outcomes.
Both matter. They should cross-reference each other through stable references, but they should not collapse into one undifferentiated event stream.
2. What evidence should answer
For an AI-assisted workflow, useful evidence should answer:
- which workflow version was live?
- what started the run?
- what input or artifact entered the workflow?
- which step ran next?
- which task was assigned to a person or agent?
- what did the agent recommend?
- which human reviewed the work?
- which approved system action or integration touched an external system?
- what failed, retried, or escalated?
- what output or artifact was produced?
- what final outcome was recorded?
These are the questions an operator, support engineer, process owner, or auditor actually asks.
3. Do not record sensitive content everywhere
Audit-grade does not mean "log everything everywhere."
That approach creates security and privacy problems. Some data belongs in workflow state or artifact storage. Some belongs in redacted audit metadata. Some belongs only in operational logs. Some should never be persisted in plain form.
Kora's evidence model should be explicit about this: sensitive values, credentials, raw prompts, workflow payloads, generated content, and full artifact contents should not be copied into every audit record.
The evidence model should preserve reconstructability without spraying secrets or sensitive payloads into every layer.
4. Human decisions need structure
Human review is one of the most important evidence points in an AI workflow.
The system should preserve:
- the task being reviewed
- the context shown to the reviewer
- the agent recommendation, if any
- the reviewer identity or modeled participant
- the decision
- the timestamp
- the downstream path taken after the decision
This is especially important when the agent prepares work but a person remains accountable for the outcome.
Without structured human-task evidence, the organization is left reconstructing decisions from chat messages, inboxes, and memory.
5. Integrations need provenance
When a workflow calls an external system, the evidence should show the provenance of that call.
The organization should be able to connect the system interaction to:
- the workflow run
- the live workflow version
- the step or approved action
- the configured integration boundary
- the person, agent, or workflow step that caused it
- the outcome
This is not only for compliance. It is also how teams debug side effects and avoid mysterious system changes.
6. Evidence supports evals
The strongest reason to preserve workflow evidence is learning.
If the workflow records what was requested, what the agent recommended, what a human decided, what system calls happened, and what outcome followed, the organization can build private evaluations around its own work.
Those evals are more valuable than generic benchmark scores. They show whether automation is improving against business reality.
The NIST AI Risk Management Framework is a useful external frame here because it treats measurement and management as part of AI risk practice. In workflow terms, measurement depends on retained evidence from real runs.
7. Evidence is not a compliance claim
Kora's evidence model is not a blanket compliance certification. Customers still need to map their own obligations, controls, and audit procedures.
But evidence is the substrate those programs need. For teams working under regulatory regimes such as the EU AI Act or DORA, the ability to reconstruct decisions, operational changes, and system behavior becomes central.
The product standard is practical: when important work runs, the organization should be able to explain what happened without rebuilding history from scattered logs and conversations.