Trust Card

Builds a holistic trust card for an OKF bundle or an agent skill. The card is itself an OKF concept (type: Card), so it lives in the bundle, version- controls cleanly, and renders in any OKF viewer.

The one idea that makes this work

A card is graded evidence, not a verdict. It never stamps "verified". It attaches every layer of proof the producer can supply, and the consumer computes a trust gradient against its own policy. This is OKF's own asymmetry applied to trust: producers are precise, consumers are forgiving — a layer that can't be verified is reported UNVERIFIED, never a hard failure.

This matters because of two hard limits you cannot engineer around: