What Is a Data Runtime?
A data runtime is a system that executes data directly, the same way a JavaScript runtime executes JavaScript. Instead of treating data as an inert value that some separate program has to load and interpret, a data runtime runs documents that carry their own logic — fields, types, and functions together, in one place, sandboxed and portable across whatever host embeds it. Stof is a data runtime: a superset of JSON where the data validates itself, transforms itself, and acts.