ACA Schemas

Machine-readable contracts of the AI Control Architecture. Part of the specification; CC BY 4.0.

File	What it is
aca-evidence.schema.json	JSON Schema (draft-07) for the ACA Evidence Object — the portable representation of proof. Connectors, test tools, monitoring products and auditors exchange evidence in this shape without a translation layer.
aca-conformance-profiles.json	Minimum evidence expectations per risk tier, so "enough proof" is objective. The required boundary-source strength graduates with the tier (Declared → Evidenced → Verified → Enforced).

The control catalogue itself is in ../controls/aca-requirements.json.

Evidence portability is the interoperability layer: standardising what controls exist (the catalogue) and how proof is represented (this schema) is what lets control evidence travel across tools, auditors and time.