Data Cost ProtocolStructured Data Delivery for AI Agents

Positional arrays, schema registry, and adaptive density — because JSON was designed for humans, not for agents

Positional Arrays

Drop keys, keep order. Schema-defined field positions eliminate redundant key repetition. Same data, fewer tokens.

Communication mode spectrum from abbreviated (L0) to full NL fallback. Dynamically selected per agent capability.

Schema as single source of truth. Load a schema, get an encoder. No domain knowledge in code — new data types are config, not programming.

Observe per-agent error rates, adjust hint density automatically. TCP slow-start for data formats.

108-call format comparison across 3 models. DCP matches or beats JSON at 2B+ parameters. Data, not assumptions.