Pundit

Policies are regular Ruby classes with query methods like `update?`, making them straightforward to write, test, and debug without learning a DSL, as emphasized in the philosophy section.

Provides controller helpers like `authorize` and `policy_scope` that reduce boilerplate, and includes view helpers for conditional UI elements, as shown in the controller and view examples.

Offers `verify_authorized` and `verify_policy_scoped` hooks to catch missing authorization calls during development, helping enforce security best practices.

Policy Scope classes allow easy filtering of records (e.g., `Post`) based on user permissions, integrated via `policy_scope` for clean list views and index actions.