Cooperative Multi-Agent Trading Ensemble with Role-Typed Routing and Tail-Risk Overlay Veto.

Twenty role-typed agents vote on every market signal; tail-risk overlay can veto. 20 claims.

A cooperative trading ensemble in which role-typed agent inference instances each embody the documented public methodology of a major operator (Buffett value, Soros macro, Taleb tail risk, and similar) and are dispatched against an incoming market-feed event under an instrument-category routing rule that selects only the subset whose role types match the event's instrument category. At least one always-on tail-risk overlay agent is dispatched regardless of category. A confidence-weighted vote aggregator combines the returned signal records, modulated by per-agent calibration scores derived from each agent's prior decision-outcome record in the audit chain. A veto-primitive engine refuses to emit an order proposal where any tail-risk overlay agent emits a contrary directional indicator above a configured confidence threshold. A pause-on-calibration engine removes any agent whose calibration score falls below a configured threshold. Filed 19 May 2026 as GB2611669.9.