Short Code Generator Skill

Overview

Each character of each code is picked independently with Node's `crypto.randomInt`, a cryptographically secure source, from the set named by `charset`. The sets are fixed: `alphanumeric` (the default) uses A-Z, a-z and 0-9, 62 characters; `alpha` uses A-Z and a-z, 52; `numeric` uses 0-9; `hex` uses 0-9 and lowercase a-f; and `base58` uses 58 characters that omit 0, O, uppercase I and lowercase l, so codes can be read aloud or typed from print with fewer mistakes. `charset` is case-insensitive.

`length` sets characters per code, from 4 to 32 with a default of 8. `count` sets how many codes are returned, from 1 to 100 with a default of 1.

The number of possible codes is the size of the set raised to the power of the length. An 8-character alphanumeric code has 62^8 possibilities while a 6-digit numeric code has only 10^6, so choose the set and length with the size of your campaign in mind. Codes within a batch are not deduplicated against each other or against earlier requests; collisions are unlikely at reasonable lengths but possible, especially with short numeric codes, so check new codes against the ones you have already issued.

The response echoes `length`, `charset` and `count`, the actual number of entries in `codes`. `url_safe` is true for all five sets, because none of them contains a character that needs escaping in a URL path or query string.

Live Test Short Code Generator Skill Skill →

The tool

Once your client is connected to the VerveKit server, this appears in its tool list as ShortCodeGeneratorSkill. 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.

{
  "name": "ShortCodeGeneratorSkill",
  "arguments": {}
}

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"
    }
  }
}

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.

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.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

{
  "status": "ok",
  "error": null,
  "data": {
    "codes": [
      "bgiFznFh",
      "jr84hHsG",
      "Q77qABwn",
      "gvMjXxXs",
      "WDPJzCsi"
    ],
    "count": 5,
    "length": 8,
    "charset": "alphanumeric",
    "url_safe": true
  }
}

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.

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.

A call costs 1 credit each time the tool actually runs; a model that reasons about the tool without calling it costs nothing.

Use cases

URL Shortening

Generate short codes for URL shortening services and link tracking

Voucher Systems

Create unique voucher and coupon codes for e-commerce and promotions

Temporary Access

Generate temporary access codes and one-time passwords for authentication

Referral Programs

Create short referral codes for marketing and referral tracking systems

Other ways to use Short Code Generator Skill

Set up Short Code Generator 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.

Related

More in Data Generation: