Vocabulary coverage estimator

Open Vocabulary coverage estimator 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": "vocabulary-coverage-estimator",
  "category": "text-tools",
  "built": true,
  "requirements": "Supply one known word per line, up to 10000 words. Matching uses NFC normalization and the selected case setting. No stemming, translation, inflection inference or dictionary is used. An empty known list marks every word unknown. Coverage is a descriptive fraction, not a proficiency estimate. Use up to 500000 text characters and 20000 word tokens. Reports allow up to 10000 matches or repeated phrase groups. JSON and CSV preserve the full report, with bounded exports up to 40 million characters and 500000 CSV records. Analysis runs locally with a 10-second timeout. Preview search and sort cover the first 200 rows; copy returns the summary. Download the full report for every row. Your text is not uploaded.",
  "implementation": {
    "fields": [
      {
        "key": "knownWords",
        "label": "Known words, one per line",
        "value": "free\ntools",
        "type": "textarea",
        "maxLength": 200000
      },
      {
        "key": "caseMode",
        "label": "Case comparison",
        "value": "fold",
        "type": "select",
        "values": [
          "fold",
          "exact"
        ],
        "labels": {
          "fold": "Locale-aware lowercase",
          "exact": "Case-sensitive"
        }
      }
    ],
    "presentation": "metrics",
    "inputMaxLength": 500000,
    "inputErrorCode": "TEXT_DIAGNOSTICS_INPUT",
    "note": "Supply one known word per line, up to 10000 words. Matching uses NFC normalization and the selected case setting. No stemming, translation, inflection inference or dictionary is used. An empty known list marks every word unknown. Coverage is a descriptive fraction, not a proficiency estimate. Use up to 500000 text characters and 20000 word tokens. Reports allow up to 10000 matches or repeated phrase groups. JSON and CSV preserve the full report, with bounded exports up to 40 million characters and 500000 CSV records. Analysis runs locally with a 10-second timeout. Preview search and sort cover the first 200 rows; copy returns the summary. Download the full report for every row. Your text is not uploaded.",
    "experience": {
      "automatic": false,
      "single": false,
      "inputMaxLength": 500000,
      "inputMode": "text",
      "label": "Your text",
      "placeholder": "Type or paste your input…",
      "help": "Up to 500,000 characters. Review the settings before running.",
      "helpParts": [
        "Up to 500,000 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"
  }
}

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