{
  "title": "Text Spacing Resilience Tester",
  "human_url": "https://happytails.ai/en/accessibility-tools/text-spacing-resilience-tester/",
  "agent_url": "https://happytails.ai/agents/en/accessibility-tools/text-spacing-resilience-tester/",
  "language": "en",
  "markdown_url": "https://happytails.ai/en/accessibility-tools/text-spacing-resilience-tester.md",
  "content": "Text Spacing Resilience Tester\nPreview larger text-spacing overrides and identify simple clipping risks in supplied HTML. Runs locally.\nHow can we improve this tool?\nReport a problem or share an idea.\nPlease leave out private information. Your message and the tool name go to our team via PostHog.\nHow to use Text Spacing Resilience Tester\nPaste the HTML.\nRun the local preview.\nReview the injected overrides and any clipping warnings.\nWhat this tests\nThe preview applies letter spacing, word spacing and line height overrides. It flags fixed-height or hidden-overflow inline styles for browser review.",
  "content_format": "text/plain",
  "visibility": "public",
  "links": [],
  "tool": {
    "id": "text-spacing-resilience-tester",
    "category": "accessibility-tools",
    "built": true,
    "requirements": "Input is limited to 200000 characters. Results are computed locally and exported as JSON.",
    "implementation": {
      "fields": [],
      "inputMaxLength": 200000,
      "inputErrorCode": "STRUCTURED_TEXT_TOO_LONG",
      "registrationFamily": "text-spacing-resilience-tester",
      "note": "Preview text-spacing overrides and identify likely clipping risks locally.",
      "experience": {
        "automatic": false,
        "single": false,
        "inputMaxLength": 200000,
        "inputMode": "text",
        "label": "Your text",
        "placeholder": "Type or paste your input…",
        "help": "Up to 200,000 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": "# Text Spacing Resilience Tester\n\n- Human page: https://happytails.ai/en/accessibility-tools/text-spacing-resilience-tester/\n- Markdown: https://happytails.ai/en/accessibility-tools/text-spacing-resilience-tester.md\n- Structured JSON: https://happytails.ai/agents/en/accessibility-tools/text-spacing-resilience-tester/index.json\n- Visibility: public\n\n## Tool capabilities\n\n| Property | Value |\n| --- | --- |\n| Tool ID | `text-spacing-resilience-tester` |\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\nPreview text-spacing overrides and identify likely clipping risks locally.\n\n### Inputs and settings\n\nText input: Your text.\n\nExample or placeholder shown in the interface (not a validated fixture):\n\n```text\nType or paste your input…\n```\n\nUp to 200,000 characters. Review the settings before running.\n\nNo additional settings are declared for this tool.\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\nInput is limited to 200000 characters. Results are computed locally and exported as JSON.\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\": \"text-spacing-resilience-tester\",\n  \"category\": \"accessibility-tools\",\n  \"built\": true,\n  \"requirements\": \"Input is limited to 200000 characters. Results are computed locally and exported as JSON.\",\n  \"implementation\": {\n    \"fields\": [],\n    \"inputMaxLength\": 200000,\n    \"inputErrorCode\": \"STRUCTURED_TEXT_TOO_LONG\",\n    \"registrationFamily\": \"text-spacing-resilience-tester\",\n    \"note\": \"Preview text-spacing overrides and identify likely clipping risks locally.\",\n    \"experience\": {\n      \"automatic\": false,\n      \"single\": false,\n      \"inputMaxLength\": 200000,\n      \"inputMode\": \"text\",\n      \"label\": \"Your text\",\n      \"placeholder\": \"Type or paste your input…\",\n      \"help\": \"Up to 200,000 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\nPreview larger text-spacing overrides and identify simple clipping risks in supplied HTML. Runs locally.\n\nHow can we improve this tool?\n\nReport a problem or share an idea.\n\nPlease leave out private information. Your message and the tool name go to our team via PostHog.\n\n### How to use Text Spacing Resilience Tester\n\n1. Paste the HTML.\n2. Run the local preview.\n3. Review the injected overrides and any clipping warnings.\n\n## What this tests\n\nThe preview applies letter spacing, word spacing and line height overrides. It flags fixed-height or hidden-overflow inline styles for browser review.\n"
}