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Limit Any Type

Checked
marius-townhouse·vlatest·backend

This skill lets you restrict responses to a specific category or type, ensuring relevant and focused outputs for your prompts.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add marius-townhouse/effective-typescript-skills --skill limit-any-type -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

marius-townhouse

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned marius-townhouse/effective-typescript-skills at d754db2077.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
d754db2077
Manifest
skills/limit-any-type/SKILL.md
Scanned
1 file, 169 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

The limit-any-type skill allows you to restrict the possible types that a variable or function parameter can be. This is useful for enforcing stricter type safety and preventing unexpected behavior in TypeScript code. It helps ensure that only specific, allowed types are used in particular contexts, improving code reliability.

When to use it

  • Validating Function Arguments: Ensure a function receives input of a limited set of acceptable types (e.g., only numbers or strings).
  • Restricting Variable Assignments: Prevent a variable from being assigned values outside of a defined type boundary, such as limiting an age field to positive integers.
  • Creating Custom Type Guards: Implement more complex validation logic beyond simple union types.
  • Enforcing API Contracts: Guarantee that data received from external APIs conforms to expected type constraints.

Key capabilities

  • Type restriction enforcement
  • Customizable type boundaries
  • Improved type safety
  • Prevention of unexpected behavior

Example prompts

  • "Restrict the age variable to be a number between 0 and 120."
  • "Ensure that the status parameter can only be 'pending', 'approved', or 'rejected'."
  • "Validate that the data argument is either an object with specific properties or a string."

Tips & gotchas

This skill requires a basic understanding of TypeScript's type system. Incorrectly defining allowed types can lead to unexpected errors or prevent valid data from being processed.