Individual skill

authorization-testing

Application-level authorization methodology - horizontal, vertical, and tenant boundary testing, ownership transitions, method and route differentials. Replay legitimate privileged requests with lower privilege using authz_matrix first to produce differential evidence.

internal/tools/skills/data/application-security/authorization-testing/SKILL.md

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# Authorization Testing

## Purpose

Test whether the application enforces WHO may do WHAT to WHICH object - at every boundary: same-level users (horizontal), privilege levels (vertical), tenants (organizational), and lifecycle states (ownership transitions). This is the methodology layer: it decides which pairs to replay and what counts as proof.

## Entry Conditions

- Any object-id parameter (/api/orders/1042), tenant header, or role-differentiated route is observed
- You hold accounts at two or more privilege levels, or two accounts in different tenants

## Core Strategy: Replay the Legitimate Request, Change Only the Identity

1. Perform the operation legitimately as the owner/rightful role (capture the exact request) - this is the **baseline**
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