Text Spacing Resilience Tester
Open Text Spacing Resilience Tester on Happytails.ai. This view has the same page content and links, with explicit tool capabilities. Read the processing notes before using a tool.
Tool capabilities
{
"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.",
"helpParts": [
"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"
}
}Page guide
Preview larger text-spacing overrides and identify simple clipping risks in supplied HTML. Runs locally.
How to use Text Spacing Resilience Tester
- Paste the HTML.
- Run the local preview.
- Review the injected overrides and any clipping warnings.
Input is limited to 200000 characters. Results are computed locally and exported as JSON.
What this tests
The preview applies letter spacing, word spacing and line height overrides. It flags fixed-height or hidden-overflow inline styles for browser review.