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Permit.io and Cerbos can both run an open source policy decision point next to your app. A neutral comparison of managed control plane vs self-hosted PDP, with a table and when to choose each.

Production AuthZ needs four pillars: enforce at every sensitive action, fine grain, realtime revoke/sync, and auditable decisions. Control plane → OPAL → PDP → PEP → logs is the architecture that makes them work together.

AI agent audit logs need about twelve fields: identity, delegation, tool, resource, policy, decision, HITL, and outcome.

Seven authorization-as-a-service options compared in 2026: Permit.io, Oso, Cerbos, AuthZed, Auth0 FGA, WorkOS FGA, and AWS Verified Permissions. A comparison table and when to choose each one.

An AI agent audit trail binds identity, delegation, tool, resource, policy, allow/deny, HITL, and outcome. Tool traces are not enough.

SOC 2 CC6 and ISO 27001 access control checklist for AI agents: what controls assumed, how agents break them, evidence to produce.

Regulators’ “prove it” maps to PEP + PDP + decision logs: enforce in the app, decide in a local PDP synced by OPAL, and keep explainable allow/deny evidence.

DORA and NIST do not prescribe a vendor. They expect scoped least-privilege access and attributable logs, including for NHIs and agents. Application FGA with decision logs is how product teams produce that evidence.

AI agent permissions usually inherit the user OAuth token. That fails least privilege. Give the agent its own role at each tool call.

Your authorization model shapes least-privilege evidence in access reviews. Role assignments, attribute conditions, and relationship tuples each prove different things.

Hybrid authorization by default: RBAC for org roles, ABAC for context, ReBAC for sharing graphs—one check API across models. How to pick a stack before role explosion, and why least privilege needs explainable entitlements.

Authentication (AuthN) is who you are; authorization (AuthZ) is what you're allowed to do. Learn 401 vs 403, why IdPs don't replace app AuthZ, and how to externalize permissions.