Count the dimensions
Roles, protected resources, and allowed actions multiply into the permission combinations your team must implement and test.
MINIMUM VIABLE PERMISSIONS
Permission Complexity Reducer
Estimate permission-model complexity from roles, resources, actions, exceptions, and data sensitivity, then recommend a simpler MVP access model.
- Uses your inputs in a transparent calculation
- Instant result with practical next steps
- No signup required
Planning guidance only. Validate important decisions with customer evidence and your delivery team.
YOUR INPUTS
Build your result
Complete every field. The result updates only when you choose Calculate.
How it works
Add exception pressure
Special-case rules and sensitive data raise the risk beyond the basic role matrix.
Reduce carefully
The result suggests a smaller starting role count while preserving a security-review warning for sensitive data.
Continue learning: Why complex roles increase MVP cost · Authorization mistakes to review
Frequently asked questions
Is fewer roles always safer?
No. Over-broad roles can violate least-privilege principles. The goal is the fewest roles that still protect real data and workflow boundaries.
What counts as a special-case rule?
Examples include one customer seeing an extra record type, a manager editing only certain regions, or temporary access that bypasses the normal role.
Does the score prove the model is secure?
No. It estimates implementation and testing complexity. Sensitive or regulated access models need threat modelling and specialist review.
Should ownership rules replace roles?
Sometimes. A simple owner/member split plus record ownership can reduce roles, but the rule must be enforced consistently on every server-side operation.
How We Compare
| Feature | MVPHub | Auth0 FGA | Permit.io |
|---|---|---|---|
| Pre-build combination estimate | Included | Not included | Not included |
| Role-reduction recommendation | Included | Limited | Limited |
| Sensitivity-aware warning | Included | Included | Included |
| Explicit exception count | Included | Included | Included |
Auth0 FGA and Permit.io provide fine-grained authorization modelling and runtime enforcement. MVPHub does not enforce access; it estimates the complexity of a proposed MVP permission model and highlights where simplification or specialist review is needed.
Related tools
Embed this tool
Add this tool to your site with the canonical iframe below. It remains hosted and maintained by MVPHub.