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nicholasjackson/opa-rego-language

Rego is the declarative policy language used by Open Policy Agent (OPA). This tile covers writing and testing Rego policies for Kubernetes admission control, Terraform and infrastructure-as-code plan validation, Docker container authorization, HTTP API authorization, RBAC and role-based access control, data filtering, metadata annotations with opa inspect, and OPA policy testing with opa test.

99

1.19x

Quality

Pending

Does it follow best practices?

Impact

99%

1.19x

Average score across 31 eval scenarios

SecuritybySnyk

Pending

The risk profile of this skill

Overview
Eval results
Files

rubric.jsonevals/scenario-4/

{
  "context": "Evaluates whether the agent implements a correct RBAC policy in Rego that reads user roles from JWT claims in the input, reads role grants from external data, iterates through the role-grant chain, and correctly matches action and resource_type from the input.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "import rego.v1",
      "description": "The policy file includes `import rego.v1`",
      "max_score": 10
    },
    {
      "name": "default allow := false",
      "description": "The policy defaults to denying all requests with `default allow := false`",
      "max_score": 15
    },
    {
      "name": "Reads roles from JWT claims",
      "description": "The policy reads the user's roles from `input.token.roles` (JWT claims) rather than from a data document or hardcoded values",
      "max_score": 15
    },
    {
      "name": "Reads role grants from data",
      "description": "The policy reads grant assignments from an external data document (e.g. `data.role_grants` or `data.role_permissions`) rather than hardcoding them",
      "max_score": 15
    },
    {
      "name": "Nested iteration with some",
      "description": "The allow rule iterates over the user's roles and then over each role's grants using `some` (or equivalent), handling users with multiple roles",
      "max_score": 20
    },
    {
      "name": "Permission match on action and resource_type",
      "description": "The allow rule checks that a grant matches both `input.action` and `input.resource_type`",
      "max_score": 15
    },
    {
      "name": "Tests pass",
      "description": "All tests pass when running `opa test . -v`",
      "max_score": 10
    }
  ]
}

README.md

rules.md

tile.json