NC

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Project

Probity

A runtime governance control plane for enforcing, recording, and reconstructing AI decision behavior.

Open source SDK

Overview

Probity is a runtime governance infrastructure layer for AI systems. It evaluates every action against policy during execution, enforces constraints in real time, and produces tamper-evident decision evidence that can be reconstructed independently of the original run. Across the Probity experiments, existing architectures fail to produce reliable constrained execution, and external guardrails render systems non-functional. Probity addresses this by making governance a first-class system property rather than an external wrapper.

Current focus

  • Per-action policy enforcement (ALLOW / REQUIRE / DENY) during execution
  • Tamper-evident Policy Restriction Evidence (PRE) with full decision trace reconstruction
  • Domain-invariant governance infrastructure across models, workflows, and policy types