Branch main Contract Invariant

Contract: Invariant

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Field	Value
Branch	main
Source	specs/contracts/Invariant.schema.json
Commit	774b981ef226
Synced (UTC)	2026-06-26T05:47:13Z

Visual Context

Contract pages define the machine-checkable object shape that crosses a lifecycle boundary.

flowchart LR
  Producer["Lifecycle producer"] --> Contract["Contract schema"]
  Contract --> Example["Schema example"]
  Example --> Validator["Schema validator"]
  Contract --> Fixture["Conformance fixture output"]
  Fixture --> Gate["Base-design gate"]

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Reading Checklist

Question	Where to look
Which lifecycle boundary uses it?	Read description, required fields, and linked references.
What diagnostics are mandatory?	Inspect diagnostic reference fields and rule-reference links.
How is it validated?	Compare this schema with fixtures/schema_examples/ and conformance vectors.

---

JSON Payload

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Invariant",
  "description": "ASH invariant reference.",
  "type": "object",
  "properties": {
    "invariantID": {
      "type": "string"
    },
    "conformanceCategory": {
      "type": "string"
    },
    "sourceReference": {
      "type": "string"
    },
    "diagnosticRule": {
      "$ref": "RuleReference.schema.json"
    }
  },
  "required": [
    "invariantID",
    "conformanceCategory",
    "sourceReference",
    "diagnosticRule"
  ],
  "additionalProperties": false
}