## sample 6
### Authorize
Can User::alice view ScreenTime::activity
Decision: Deny
Reason: alice's age is not greater than 18
```
cargo run authorize \
--policies policy.cedar \
--entities entity.json \
--request-json request.json
```
### Validation
Is policy.cedar valid based on the schema schema.cedarschema
```
cargo run validate \
--policies policy.cedar \
--schema schema.cedarschema
```
### Evaluate
Evaluate a Cedar expression
```
cargo run evaluate \
--request-json request.json \
--entities entity.json \
"principal.account.age >= 17"
```