Fast enough to sit in the path
The deterministic gate is a pure, side-effect-free function — no I/O, no model call. Its verdict executes in well under a millisecond, so enforcement is something you keep on in production, not a check you skip under load.
Fast enough to sit in the path
The deterministic gate is a pure, side-effect-free function — no I/O, no model call. Its verdict executes in well under a millisecond, so enforcement is something you keep on in production, not a check you skip under load.
Deterministic gate
The pure veto/gate decision — no external calls, fully reproducible.
Hot-path integrity
Runtime-integrity self-checks are short-TTL cached to keep per-decision overhead minimal.
Authority lookup
Per-decision authorization is a constant-time check — latency stays flat as policy grows.
Sub-millisecond figures describe the deterministic gate decision. End-to-end policy evaluation latency depends on policy pack complexity and deployment topology.
A pure function, not a service call
Latency discipline is an architectural property, not a tuning exercise. The deterministic gate is built so the hot path never has to wait on anything it cannot control.
No model inference on the hot path
The gate is deterministic logic, not an LLM call. There is no token generation, no network round-trip to a model provider, in the decision itself.
No I/O inside the verdict
The pure decision function does not read from disk or call the network. Inputs are passed in; a verdict comes out — reproducibly.
Constant-time authorization
Per-decision authority is an O(1) lookup, so adding policies does not slow down each decision. Latency stays flat as the policy surface grows.
Cached integrity self-checks
Runtime-integrity verification is short-TTL cached rather than recomputed per call, keeping per-decision overhead in the single-digit-millisecond range.
Common questions
How fast is an EVE CoreGuard decision?
Does enforcement slow down as I add more policies?
Why is the gate so fast?
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