asl-java-implement-rule-authz

Key capabilities

• →Implement authentication constraints for protected interfaces
• →Enforce authorization rules based on role matrices
• →Perform resource-level authorization checks in the Service layer or authentication chain
• →Ensure default rejection for unauthorized requests, missing headers, invalid tokens, or unknown users
• →Maintain consistent role literals between documentation, Java enums, and API headers
• →Return stable error codes for unauthorized responses without leaking internal details

How it works

The skill implements authentication and authorization rules in Spring Boot APIs, covering header/JWT validation, RBAC, resource ownership, and default-deny principles. It ensures that both authentication and authorization are enforced, with resource-level checks performed in the service layer.

Inputs & outputs

When not to use it

• →When only relying on front-end hidden buttons or invisible routes for security
• →When authentication and authorization are not both covered
• →When administrator, manager, and employee permissions are mixed

Limitations

• →Authentication and authorization must both be covered
• →Default rejection is required for unauthorized requests, missing headers, illegal tokens, or unknown users
• →Resource-level authorization must be checked in the Service layer or authentication chain

How it compares

This approach systematically enforces clear authentication and authorization boundaries, including resource-level checks and default-deny patterns, providing a reliable security framework unlike relying on client-side controls or incomplete a