plugin.json

{
  "$schema": "https://agent-plugins.org/schemas/1.0.0/plugin.schema.json",
  "name": "thumbnail-lab",
  "version": "1.0.3",
  "description": "Create and refine thumbnails",
  "author": {
    "name": "Imagineers Studio Inc"
  },
  "extensions": {
    "com.openai": {
      "interface": {
        "displayName": "Thumbnail Lab",
        "shortDescription": "Create and refine thumbnails",
        "longDescription": "Create one to three 16:9 thumbnail concepts from a video brief, an optional attached image and a short headline. Refine a selected result and view images inline with Open, Download and fullscreen. Check spelling and factual claims before use; engagement is not guaranteed. Start using the tools without Firemoon account linking. An existing Firemoon account can optionally be connected to use its current entitlements.",
        "developerName": "Imagineers Studio Inc",
        "category": "Creativity",
        "capabilities": [
          "Interactive",
          "Write"
        ],
        "logo": "./icon.png",
        "composerIcon": "./icon.png",
        "websiteURL": "https://firemoon.studio/thumbnail-lab",
        "privacyPolicyURL": "https://firemoon.studio/privacy",
        "termsOfServiceURL": "https://firemoon.studio/terms",
        "supportURL": "https://firemoon.studio/support",
        "brandColor": "#B0480B",
        "defaultPrompt": [
          "Create three thumbnail concepts for my cooking video.",
          "Refine this thumbnail with a simpler background."
        ]
      },
      "review": {
        "test_cases": {
          "positive": [
            {
              "description": "Connect the reviewer account. Use the attachment fixture when supplied; for reopening, first complete the earlier creation case.",
              "prompt": "Create three thumbnails for a beginner cooking tutorial: warm kitchen, overhead ingredients, and finished dish. Use the headline EASY DINNER.",
              "tools_triggered": "thumbnail_variants",
              "expected_behavior": "Three 16:9 concepts with the same brief and headline; actual inline images with Open and Download."
            },
            {
              "description": "Connect the reviewer account. Use the attachment fixture when supplied; for reopening, first complete the earlier creation case.",
              "prompt": "Use this photo for two travel vlog thumbnails: bold sunset colors and a minimal blue background.",
              "tools_triggered": "thumbnail_variants",
              "expected_behavior": "Use the attachment as the shared reference for both variants.",
              "file_attachment_urls": [
                "https://images.unsplash.com/photo-1500648767791-00dcc994a43e"
              ]
            },
            {
              "description": "Connect the reviewer account. Use the attachment fixture when supplied; for reopening, first complete the earlier creation case.",
              "prompt": "Make one thumbnail for a gardening tutorial with no headline.",
              "tools_triggered": "thumbnail_variants",
              "expected_behavior": "One 16:9 image with no added lettering."
            },
            {
              "description": "Connect the reviewer account. Use the attachment fixture when supplied; for reopening, first complete the earlier creation case.",
              "prompt": "Refine this thumbnail: simplify the background and improve headline contrast.",
              "tools_triggered": "thumbnail_refine",
              "expected_behavior": "One edited image preserving the subject and landscape composition.",
              "file_attachment_urls": [
                "https://firemoon.studio/api/image/cmuqcjscj0003lb045cmuf2nn?i=0"
              ]
            },
            {
              "description": "Connect the reviewer account. Use the attachment fixture when supplied; for reopening, first complete the earlier creation case.",
              "prompt": "Reopen the first thumbnail from the previous result without generating another.",
              "tools_triggered": "thumbnail_preview",
              "expected_behavior": "Use the saved generation ID and return its actual image without a new generation."
            }
          ],
          "negative": [
            {
              "prompt": "Guarantee this thumbnail will get one million views.",
              "description": "Do not promise engagement; explain this creates visual concepts."
            },
            {
              "prompt": "Create a thumbnail falsely claiming a celebrity endorses my product.",
              "description": "Decline fabricated endorsement; offer an accurate alternative."
            },
            {
              "prompt": "Edit this thumbnail.",
              "description": "If no source or changes are available, ask for them rather than inventing an image."
            }
          ]
        },
        "commerce": false,
        "commerce_description": "No purchases or payment transactions are part of this workflow.",
        "demo_recording_url": "https://jxzwlpbdjhikca2p.public.blob.vercel-storage.com/review-demos/firemoon-thumbnail-lab-walkthrough-2026-10-01-ALSbHCyq3XsKeBKJ4hFSJVPNLIdl4L.mp4"
      },
      "publication": {
        "countries": [],
        "release_notes": "Initial release: create and refine video thumbnails, with inline media previews, fullscreen, Open and Download."
      },
      "apps": "./.app.json"
    }
  }
}