Core Utility

• Oracle data exceeds a staleness threshold
• Spread widens beyond a configurable bps limit
• Pool depth falls below the threshold for that order size
• The underlying exchange is closed and price has gapped meaningfully from last close
• An unpriced catalyst has been detected

The AI layer raises signals; it never executes the decision. Every verdict resolves through fixed, auditable thresholds — which is what makes the guard safe to hand a session key.

This separation is a hard architectural requirement, not a preference. See the Policy Compiler for how human intent becomes deterministic policy.