permission-boundary-modeling

What problem does it solve?

Prevents privilege escalation, cross-tenant data leakage, IDOR vulnerabilities, and overly broad service account permissions by modeling authorization as explicit subject × resource × action × condition rules enforced server-side.

Core Features & Use Cases

• Object-level authorization modeling: Defines authorization using tenant isolation, resource ownership/scope, lifecycle state constraints, and trusted server-side condition evaluation.
• Deny semantics without data disclosure: Specifies when to return 404 vs 403 to avoid confirming whether restricted resources exist.
• Auditable enforcement guidance: Requires authorization decisions and high-risk mutations to emit append-only audit events including subject, tenant, resource, action, and request context.

Quick Start

Use permission-boundary-modeling to map a proposed API or role/permission change into a complete authorization and enforcement plan that your backend team can implement with correct 404/403 behavior and auditable decisions.