{
  "title": "Color blindness simulator",
  "human_url": "https://happytails.ai/en/accessibility-tools/color-blindness-simulator/",
  "agent_url": "https://happytails.ai/agents/en/accessibility-tools/color-blindness-simulator/",
  "language": "en",
  "markdown_url": "https://happytails.ai/en/accessibility-tools/color-blindness-simulator.md",
  "content": "Color blindness simulator\nNamed simulation model, preview modes and clear limits of simulation..\nHow to use Color blindness simulator\nChoose a file in a supported format.\nReview the settings, then choose Run Color blindness simulator.\nReview the result, then use Copy result or a download link when available.\nWorking with color blindness simulator\nAccessibility utilities can calculate contrast, inspect markup and help draft descriptions. They answer specific questions, but a usable experience also depends on navigation, context and the way content is presented to people using different technologies.\nCommon questions\nDoes every image need a long description?\nNo. The useful description depends on the image’s purpose and nearby text. A decorative image and a chart conveying important information need different treatment.\nCan an automated pass certify the whole experience?\nNo. Automated checks cover only part of the problem. Use them to find issues, then review interactions and content with the intended users in mind.",
  "content_format": "text/plain",
  "visibility": "public",
  "links": [],
  "tool": {
    "id": "color-blindness-simulator",
    "category": "accessibility-tools",
    "built": true,
    "requirements": "Named simulation model, preview modes and clear limits of simulation.",
    "implementation": {
      "fields": [
        {
          "key": "mode",
          "label": "Simulation",
          "value": "Protanopia",
          "type": "select",
          "values": [
            "Protanopia",
            "Deuteranopia",
            "Tritanopia"
          ]
        }
      ],
      "files": true,
      "input": false,
      "note": "Approximate color-matrix simulation for design review, not a clinical representation or diagnostic test.",
      "experience": {
        "automatic": false,
        "single": false,
        "label": "Your text",
        "placeholder": "Type or paste your input…",
        "help": "Up to 1,000,000 characters. Review the settings before running.",
        "action": null
      },
      "mode": "explicit",
      "interactive": false
    },
    "execution": "Browser interface",
    "api": null,
    "browser_agent": {
      "supported": true,
      "name": "run_current_tool",
      "discovery": "WebMCP on the human page in a supporting browser",
      "verification": "See audit/API-AUDIT.md; availability is not verification"
    }
  },
  "markdown": "# Color blindness simulator\n\n- Human page: https://happytails.ai/en/accessibility-tools/color-blindness-simulator/\n- Markdown: https://happytails.ai/en/accessibility-tools/color-blindness-simulator.md\n- Structured JSON: https://happytails.ai/agents/en/accessibility-tools/color-blindness-simulator/index.json\n- Visibility: public\n\n## Tool capabilities\n\n| Property | Value |\n| --- | --- |\n| Tool ID | `color-blindness-simulator` |\n| Category | accessibility-tools |\n| Implementation | Registered implementation. Registration alone is not a production-quality guarantee. |\n| Browser execution | Use the visible action or interactive controls. |\n| Browser processing | Browser; see tool notes for network behavior. |\n| HTTP API | Not callable through HTTP. |\n| Browser-agent interface | run_current_tool |\n\n### Implementation notes\n\nApproximate color-matrix simulation for design review, not a clinical representation or diagnostic test.\n\n### Inputs and settings\n\nNo free-text input is required. Use the file inputs and/or settings below.\n\nAccepted browser files: `See implementation notes`. Choose one file.\n\n| Setting | Meaning | Control type | Default | Constraints |\n| --- | --- | --- | --- | --- |\n| `mode` | Simulation | select | \"Protanopia\" | Allowed: Protanopia, Deuteranopia, Tritanopia |\n\n### Browser-agent workflow\n\n1. Open the human page in a browser that supports WebMCP.\n2. Discover the interface exposed by that page; use its actual schema.\n3. Select files on the page first when the tool requires files.\n4. Call `run_current_tool` with valid input and settings.\n5. Inspect the returned result or error and the displayed output. Retrieve files from the displayed download links.\n\nCalls do not automatically copy or download results. Browser permissions still apply. Interface availability alone is not proof of successful execution.\n\n### Planning specification\n\nNamed simulation model, preview modes and clear limits of simulation.\n\nThis describes intended requirements. Use the implementation notes, interface schema and observed output to determine current support.\n\n### Complete machine-readable capability record\n\n```json\n{\n  \"id\": \"color-blindness-simulator\",\n  \"category\": \"accessibility-tools\",\n  \"built\": true,\n  \"requirements\": \"Named simulation model, preview modes and clear limits of simulation.\",\n  \"implementation\": {\n    \"fields\": [\n      {\n        \"key\": \"mode\",\n        \"label\": \"Simulation\",\n        \"value\": \"Protanopia\",\n        \"type\": \"select\",\n        \"values\": [\n          \"Protanopia\",\n          \"Deuteranopia\",\n          \"Tritanopia\"\n        ]\n      }\n    ],\n    \"files\": true,\n    \"input\": false,\n    \"note\": \"Approximate color-matrix simulation for design review, not a clinical representation or diagnostic test.\",\n    \"experience\": {\n      \"automatic\": false,\n      \"single\": false,\n      \"label\": \"Your text\",\n      \"placeholder\": \"Type or paste your input…\",\n      \"help\": \"Up to 1,000,000 characters. Review the settings before running.\",\n      \"action\": null\n    },\n    \"mode\": \"explicit\",\n    \"interactive\": false\n  },\n  \"execution\": \"Browser interface\",\n  \"api\": null,\n  \"browser_agent\": {\n    \"supported\": true,\n    \"name\": \"run_current_tool\",\n    \"discovery\": \"WebMCP on the human page in a supporting browser\",\n    \"verification\": \"See audit/API-AUDIT.md; availability is not verification\"\n  }\n}\n```\n\n## Page guide\n\nNamed simulation model, preview modes and clear limits of simulation..\n\n## How to use Color blindness simulator\n\n1. Choose a file in a supported format.\n2. Review the settings, then choose Run Color blindness simulator.\n3. Review the result, then use Copy result or a download link when available.\n\n## Working with color blindness simulator\n\nAccessibility utilities can calculate contrast, inspect markup and help draft descriptions. They answer specific questions, but a usable experience also depends on navigation, context and the way content is presented to people using different technologies.\n\n## Common questions\n\n### Does every image need a long description?\n\nNo. The useful description depends on the image’s purpose and nearby text. A decorative image and a chart conveying important information need different treatment.\n\n### Can an automated pass certify the whole experience?\n\nNo. Automated checks cover only part of the problem. Use them to find issues, then review interactions and content with the intended users in mind.\n"
}