plugin.json

{
  "$schema": "https://agent-plugins.org/schemas/1.0.0/plugin.schema.json",
  "name": "sigil",
  "version": "1.0.5",
  "description": "Sigil critiques a company\u2019s brand from its public website and an optional public document. The brand review covers positioning, visual identity, voice, a brand score, and the changes to make first. The plugin returns the critique and a link to the full brand review. It does not design logos, generate brand briefs, or access private company systems.",
  "author": {
    "name": "Sigil",
    "email": "sigil@auto-units.com",
    "url": "https://sigilbrandstudio.com/"
  },
  "homepage": "https://sigilbrandstudio.com/",
  "keywords": [],
  "extensions": {
    "com.openai": {
      "onboardingSkill": "./skills/sigil/SKILL.md",
      "review": {
        "commerce": false,
        "test_cases": {
          "positive": [
            {
              "description": "Critique a company website",
              "prompt": "Critique the brand of autoprintstudio.com",
              "tools_triggered": "start_read, check_read",
              "expected_behavior": "Run a brand review and return the score, verdict, first changes and result link."
            },
            {
              "description": "Evaluate voice and positioning",
              "prompt": "Is the voice on stripe.com consistent with who they sell to?",
              "tools_triggered": "start_read, check_read",
              "expected_behavior": "Run a brand review and answer from its voice, audience and positioning sections."
            },
            {
              "description": "Explain a brand/business gap",
              "prompt": "From the AutoPrint brand review above, where does the brand undersell the business?",
              "tools_triggered": "check_read",
              "expected_behavior": "Reuse the preceding AutoPrint brand review ID and answer from its Brand vs business section."
            },
            {
              "description": "Prioritize changes",
              "prompt": "From that AutoPrint brand review, which three changes should we make first?",
              "tools_triggered": "check_read",
              "expected_behavior": "Reuse the review ID and answer from Change first. Do not start unrelated work."
            },
            {
              "description": "Check progress",
              "prompt": "Is my AutoPrint brand review ready yet?",
              "tools_triggered": "check_read",
              "expected_behavior": "Use the review ID from earlier in the conversation. Report progress or the completed result."
            }
          ],
          "negative": [
            {
              "description": "Refuse a private network website before starting a brand review.",
              "prompt": "Critique http://127.0.0.1:8080",
              "tools_triggered": "start_read",
              "expected_behavior": "Refuse a private network website before starting a brand review."
            },
            {
              "description": "Ask for the public website. The server rejects a missing website argument.",
              "prompt": "Critique my brand without a website",
              "tools_triggered": "start_read",
              "expected_behavior": "Ask for the public website. The server rejects a missing website argument."
            },
            {
              "description": "Report that the brand review does not exist; do not expose another report.",
              "prompt": "Open brand review not-a-real-read",
              "tools_triggered": "check_read",
              "expected_behavior": "Report that the brand review does not exist; do not expose another report."
            }
          ]
        },
        "commerce_description": "The plugin provides brand critiques. It does not offer digital purchases or checkout.",
        "demo_recording_url": "https://sigilbrandstudio.com/review/plugin-walkthrough.mp4"
      },
      "publication": {
        "release_notes": "Update public links to sigilbrandstudio.com and use brand review terminology. Keep Sigil as the listing and author name, with the registered public MCP endpoint unchanged."
      },
      "interface": {
        "displayName": "Sigil",
        "shortDescription": "Honest brand critiques",
        "longDescription": "Sigil critiques a company\u2019s brand from its public website and an optional public document. The brand review covers positioning, visual identity, voice, a brand score, and the changes to make first. The plugin returns the critique and a link to the full brand review. It does not design logos, generate brand briefs, or access private company systems.",
        "developerName": "Sigil",
        "category": "Productivity",
        "capabilities": [
          "Critiques a company's brand from its website",
          "Reads one pitch deck, memo or brief by link",
          "Scores clarity, distinctiveness, credibility, coherence, voice and craft",
          "Suggests a one-line brand idea and the first changes to make"
        ],
        "websiteURL": "https://sigilbrandstudio.com/",
        "supportURL": "https://sigilbrandstudio.com/legal/terms",
        "privacyPolicyURL": "https://sigilbrandstudio.com/legal/privacy",
        "termsOfServiceURL": "https://sigilbrandstudio.com/legal/terms",
        "defaultPrompt": [
          "Critique the brand of autoprintstudio.com",
          "How well does stripe.com communicate who it sells to?",
          "What should we improve first in our brand?"
        ],
        "brandColor": "#002FA7",
        "composerIcon": "./assets/profile-icon.png",
        "logo": "./assets/profile-icon.png"
      },
      "apps": "./.app.json"
    }
  }
}