Stop the action, not just describe it
EVE CoreGuard sits in the decision path. A proposed AI action is evaluated against your policy packs and the verdict is binding — ALLOWED, BLOCKED, or MODIFIED, decided before the action executes.
Stop the action, not just describe it
Most "guardrails" observe and annotate. EVE CoreGuard sits in the decision path: the proposed action is evaluated against policy and the verdict is binding. A BLOCKED action does not run.
Pre-execution gate
The action is evaluated before it reaches the tool, the model output, or the downstream system. Enforcement happens up front, not in post-mortem.
Three dispositions
Every request resolves to ALLOWED, BLOCKED, or MODIFIED — with a reason code and a signed record of which policy fired.
Risk-scored
Policy packs compute deterministic risk and map it to a disposition. The same inputs always produce the same verdict.
{
"request_id": "req-001",
"tenant_id": "org_acme",
"proposed_action": { "type": "loan_approval", "amount": 50000 },
"context": { "credit_score": 610, "debt_to_income": 0.55 },
"policy_set": "lending_v1"
}
// → { "decision": { "status": "BLOCKED" },
// "risk": { "level": "HIGH" }, "audit": {…signed…} }
ALLOWED, BLOCKED, or MODIFIED — and why
A binding verdict is only useful if it explains itself. Each disposition carries a structured reason code and the exact policy version that produced it.
ALLOWED
The action satisfies every rule in the active policy pack. It proceeds — and the allow is still recorded, so "nothing happened" is itself provable.
BLOCKED
The action violates a rule or crosses a risk threshold. It is stopped before execution and the reason code names the rule that fired.
MODIFIED
The action can proceed only in a constrained form — a redaction, a cap, an added control. CoreGuard returns the bounded version rather than a flat refusal.
Observation is not enforcement
A monitor tells you, after the fact, that something happened. A gate decides whether it happens at all. In a regulated workflow, that is the difference between a control and a report.
Common questions
What does EVE CoreGuard actually enforce?
How is this different from a guardrail or content filter?
What is returned on a decision?
Request a Design Partner Pilot
Put EVE CoreGuard in front of one real, high-stakes AI workflow. We'll stand up a policy pack, wire the gate, and show you blocked actions with signed evidence.