{
  "schemaVersion": 1,
  "type": "principle",
  "id": "zeigarnik-effect",
  "evaluation": {
    "reviewedOn": "2026-10-19",
    "status": "limited",
    "modes": [
      "application-fixture"
    ],
    "summary": "The fixture resumed an explicitly scoped tab-memory draft and left the reminder opt-in. It did not test a memory or engagement advantage from unfinished work.",
    "reportUrl": "/design-evaluations/principle-zeigarnik-effect.json",
    "identity": {
      "target": "Original IonBin synthetic interface example; no external product or human-participant study.",
      "version": "2026-10-19 local fixture",
      "integrity": "SHA-256 f85d1056afd667225a1e0364edfb8f25b4693ffa7b2b8c7d7af5b92338b85ee4 identifies the exact HTML fixture only."
    },
    "environment": [
      "155.0.8059.82 Chromium; fresh context with all network requests blocked.",
      "Synthetic inputs, memory-only state, reduced-motion preference, 1280px and 320px viewports."
    ],
    "tests": [
      {
        "name": "Reminder opt in",
        "mode": "application-fixture",
        "method": "Exercise the original local application fixture and inspect the resulting controls or DOM state.",
        "result": "pass",
        "observation": "The optional reminder began unchecked; the fixture has no deadline/countdown."
      },
      {
        "name": "Resume memory",
        "mode": "application-fixture",
        "method": "Exercise the original local application fixture and inspect the resulting controls or DOM state.",
        "result": "pass",
        "observation": "The draft could be resumed from explicitly scoped tab memory. No storage or account synchronization was used."
      }
    ],
    "security": {
      "scope": "Review of the local example’s stated interaction boundaries; no backend, authentication, production permissions or external service was exercised.",
      "findings": [
        {
          "level": "caution",
          "basis": "advice",
          "title": "Resumption and reminders need user control",
          "detail": "Real reminders and saved drafts can expose sensitive context on shared devices. Offer control over retention, notifications and deletion."
        }
      ],
      "limits": [
        "The example has no real authorization or persistence layer; its UI behavior cannot establish the security of a deployed workflow."
      ]
    },
    "practicalCaveats": [
      "Use unfinished-state cues to support a real task, with clear save scope; do not manufacture pressure to return."
    ],
    "limits": [
      "This checks an authored application example, not the truth, effect size or generality of the named principle.",
      "No users, assistive-technology participants, physical devices or production task outcomes were evaluated."
    ],
    "sources": [
      {
        "label": "Ghibellini and Meier: Interruption, Recall and Resumption (2025)",
        "url": "https://www.nature.com/articles/s41599-025-05000-w",
        "scope": "Open-access meta-analysis; memory advantage and task resumption assessed separately."
      }
    ]
  }
}