A condition or rule you never want your application to break. It's composed of three ingredients:

  • A metric

  • An operator

  • A target value

Your Rules should evaluate to False for the base case, and to True for unwanted scenarios.

In the example above, the "input/output shall never contain PII" is encoded into a Rule like below:

                        "metric": "pii",
                        "operator": "contains",
                        "target_value": "ssn",



Rules and Metrics

Each metric requires a specific operator and target value to be compared against. An exhaustive list of metrics supported along with the operators and target values can be found here.

At runtime, the rule is compared with the provided payload, and the metric is computed. If all of the rules are triggered, the ruleset is triggered and the action is applied.

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