keycloak/tests/custom-scripts/src/main/resources/META-INF/keycloak-scripts.json

{
  "authenticators": [
  ],
  "mappers": [
  ],
  "policies": [
    {
      "name": "Default Policy",
      "fileName": "scripts/default-policy.js",
      "description": "A policy that grants access only for users within this realm"
    }
  ]
}