happytails.ai

Caption Coverage Checker

Open Caption Coverage Checker 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": "caption-coverage-checker",
  "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": "caption-coverage-checker",
    "note": "Compare speech and caption time ranges locally and expose missing intervals.",
    "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

Compare speech and caption time ranges and expose missing intervals. Runs locally and returns a reviewable report.

How to use Caption Coverage Checker
  1. Paste speech ranges, then a line containing three hyphens, then caption ranges.
  2. Run the local check.
  3. Review uncovered intervals and download the report.

Input is limited to 200000 characters. Results are computed locally and exported as JSON.

Timing coverage

The checker compares intervals only. It does not judge caption wording, synchronization quality or speaker attribution.