Tired of validating data with JSON Schema? We built an alternative

We've been there. JSON Schema gets hard to write as soon as your payload is non-trivial. Conditional logic, cross-field rules, business invariants, and at some point we stop writing contracts at all. We go code-first, generate the schema from annotations, and end up with 200 lines very few understand, and error messages referencing paths like #/properties/items/allOf/0/then/Then that map to nothing in our mental model. So we built Okyline. A contract is just an annotated JSON example: you descri