The Correctover Conformance Shape (CCS) specification — IETF Internet-Draft draft-correctover-ccs-06, Experimental status — defines a runtime verification framework for AI agent tool calls across seven dimensions: Structure, Schema, Latency, Cost, Identity, Integrity, and Security.

As of August 2026, two independent implementations from separate codebases now pass all 14 conformance checks. This post documents what was achieved and what it means.

The Two Implementations

Correctover Reference Implementation

npm package correctover at version 2.4.9