{
  "entry": {
    "kind": "webmcp",
    "slug": "openai-margin-editor",
    "name": "Margin Editor",
    "vendor": "OpenAI",
    "description": "A local note editor in which the agent has its own identity: it creates notes and responds in the margin as a distinct participant rather than silently editing the user's text. A deliberate demonstration that agent-native does not have to mean agent-invisible.\n\nThat identity separation is the interesting security property. When agent output is attributable and spatially separated from human content, prompt-injected text the agent produces is visibly the agent's, not the user's — which matters enormously for documents that later feed other systems. Declared capabilities are browser control and outbound network access. It is catalogued as the design pattern worth copying: mark what the model wrote.",
    "website": "https://openai.com",
    "repository": null,
    "documentationUrl": null,
    "license": null,
    "version": null,
    "trustLevel": "official",
    "capabilities": [
      "browser:control",
      "network:outbound"
    ],
    "packaging": null,
    "configFiles": null,
    "category": "reference-app",
    "updatedAt": "2026-09-02",
    "risk": {
      "score": 10,
      "band": "low",
      "signals": [
        {
          "id": "trust-official",
          "kind": "trust",
          "label": "Published by the vendor",
          "contribution": -40
        }
      ],
      "dangerousCombos": []
    },
    "dangerousCombos": []
  }
}