Vowel Counter Skill

Overview

Perfect for linguistic research, readability analysis, and educational applications requiring detailed phonetic character analysis.

Live Test Vowel Counter Skill Skill →

The tool

Once your client is connected to the VerveKit server, this appears in its tool list as VowelCounterSkill. It is read-only and open-world — it fetches and never mutates anything on your side — so most clients call it without asking you to confirm.

Tool call

{
  "name": "VowelCounterSkill",
  "arguments": {
    "text": "Hello World"
  }
}

You do not name the tool yourself; the model picks it. Asking about Hello World in the terms this skill covers is enough for it to reach for VowelCounterSkill on its own — naming it explicitly also works, and is the way to force the call.

Connecting

One server URL covers every skill in the catalog, including this one. Authorization is OAuth: the client opens a browser once, and there is no key to paste into a config file.

{
  "mcpServers": {
    "vervekit": {
      "url": "https://api.vervekit.com/v1/mcp"
    }
  }
}

Per-client setup — Claude, Cursor, VS Code, ChatGPT — is on the MCP setup page.

Arguments

These are the properties on the tool's inputSchema, so a well-behaved client validates them before the call is made. Premium arguments are accepted on every plan but only take effect on plans that include them.

Argument	Type	Description
`text`Required	string	Text to analyze (max 50,000 characters)

What the model gets back

The result carries a structuredContent object matching the tool's declared outputSchema, so a client reads fields without parsing prose. status is "ok" and error is null on success; a null field means the value was not available for that input, not that the call failed.

Result

{
  "status": "ok",
  "error": null,
  "data": {
    "vowels": 31,
    "consonants": 58,
    "totalLetters": 89,
    "vowelPercentage": 34.83,
    "consonantPercentage": 65.17,
    "vowelBreakdown": {
      "a": 8,
      "e": 11,
      "i": 3,
      "o": 7,
      "u": 2
    },
    "textLength": 110
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

Field	Type	Example	Description
`vowels`	number	`31`	Total count of vowels (a, e, i, o, u) in text
`consonants`	number	`58`	Total count of consonant letters in text
`totalLetters`	number	`89`	Combined count of vowels and consonants
`vowelPercentage`Premium	number	`34.83`	Percentage of text consisting of vowel letters
`consonantPercentage`Premium	number	`65.17`	Percentage of text consisting of consonant letters
`vowelBreakdown`	object	`{…}`	Per-vowel counts for a, e, i, o and u
`vowelBreakdown.a`Premium	number	`8`	Individual count of letter 'a' in text
`vowelBreakdown.e`Premium	number	`11`	Individual count of letter 'e' in text
`vowelBreakdown.i`Premium	number	`3`	Individual count of letter 'i' in text
`vowelBreakdown.o`Premium	number	`7`	Individual count of letter 'o' in text
`vowelBreakdown.u`Premium	number	`2`	Individual count of letter 'u' in text
`textLength`Premium	number	`110`	Total character length including spaces and punctuation

Failure modes

Errors come back as tool errors carrying a sentence the model can act on, not a bare status code. Error handling covers the full list.

Status	What it means
`400` / `422`	The arguments did not validate. The message names the offending one.
`401`	The OAuth session is invalid or expired — reconnect the server.
`403`	Blocked by a key restriction or an IP allow-list. Never a bad identity.
`404`	This skill is not part of VerveKit. Check the catalog.
`429`	Out of credits, or a brief rate limit. The message tells them apart.

A call costs 2 credits each time the tool actually runs; a model that reasons about the tool without calling it costs nothing.

Use cases

Linguistic Analysis: Analyze vowel patterns and distributions in text for linguistic research
Readability Testing: Assess text complexity based on vowel-consonant ratios
Educational Tools: Create exercises for teaching phonetics and letter recognition
Text Statistics: Generate detailed character frequency reports for writing analysis

Other ways to use Vowel Counter Skill

Set up Vowel Counter Skill on VerveKit, or reach the same source a different way. Your VerveKit account and credits work on all of them — one key, one balance.

Call it as a REST APIOne HTTPS endpoint and an x-api-key header, with SDKs for Node, Python and .NET.APIVerve →Reference →

Google Sheets or ExcelA =VERVE() formula fills a column — no script, no export, recalculates in place.VerveSheets →Reference →