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Function Type Expressions

Checked
marius-townhouse·vlatest·backend

Generates complex function type expressions for various programming languages, streamlining code creation and enhancing developer productivity.

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 function-type-expressions -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/function-type-expressions/SKILL.md
Scanned
1 file, 216 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

This skill enables AI agents to understand and generate function type expressions in TypeScript. It allows for precise definition of function signatures, including parameter types, return types, and optional properties. This capability is crucial for creating robust and maintainable TypeScript codebases by ensuring type safety and clarity.

When to use it

  • Defining complex API endpoints: Use this skill when you need to accurately represent the input and output types of a backend API function.
  • Refactoring existing JavaScript code to TypeScript: This skill can help in converting legacy JavaScript functions into properly typed TypeScript equivalents.
  • Generating documentation for TypeScript projects: The skill can automatically create clear and concise documentation based on function type definitions.
  • Creating reusable TypeScript components: Define precise function types to ensure that components interact correctly with each other.

Key capabilities

  • Understanding of function type syntax in TypeScript.
  • Generation of function type expressions including parameter lists, return types, and optional properties.
  • Ability to infer function types from existing code.

Example prompts

  • "Generate a TypeScript function type for a function that takes two numbers and returns their sum."
  • "Explain the difference between (x: number) => void and (x?: number) => void in TypeScript."
  • “Create a function type expression representing a function that accepts an object with 'name' (string) and 'age' (number) properties, and returns a boolean.”

Tips & gotchas

This skill requires some familiarity with TypeScript syntax. While it can generate types based on descriptions, providing clear examples of the desired function signature will yield more accurate results.