Governance Deep Dive: Policy Testing as a First-Class Discipline

Policies are code that decides what agents may do, and shipping them without regression tests means learning about policy bugs from production denials or worse, approvals.

A policy bug has two failure modes: denying legitimate work, which is loud, and approving illegitimate work, which is silent. Only tests catch the silent one before it matters.

A policy test suite that earns trust

• Golden cases: actions that must always allow and must always deny.
• Boundary cases at the exact edges of scopes and trust levels.
• Diff mode: every policy change reports which decisions flip.

Use the AuthGuardian, examples, and contributing guide to catch policy regressions in tests instead of in production.