`structural-invalid-created-at`

metadata creation timestamp format assertion

structural invalid

Layer: structural
Expected result: invalid
Expected diagnostic: JPS-STRUCTURE-FORMAT-DATE-TIME at /metadata/createdAt
Specification: §6.8

The expected result is conformance-corpus metadata, not a claim about factual grounding, authority, safety, or operational fitness.

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Exact fixture

{
  "specVersion": "0.1.0-draft",
  "id": "https://example.com/judgment-packs/invalid-created-at",
  "version": "0.1.0",
  "title": "Invalid creation timestamp",
  "decision": {
    "intent": "Exercise date-time-format validation.",
    "question": "Is a date without a time rejected?"
  },
  "outcomes": [
    { "id": "accept", "label": "Accept" },
    { "id": "reject", "label": "Reject" }
  ],
  "rules": [
    {
      "id": "literal-rule",
      "description": "A structurally minimal rule.",
      "when": { "op": "literal", "value": true },
      "outcome": "accept",
      "onUnknown": "ignore"
    }
  ],
  "metadata": { "createdAt": "2026-07-22" }
}