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Prefer Type Annotations

Checked
marius-townhouse·vlatest·backend

This skill automatically adds type annotations to your code for improved readability and maintainability, boosting 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 prefer-type-annotations -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/prefer-type-annotations/SKILL.md
Scanned
1 file, 175 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 guides an AI agent to prefer using type annotations in TypeScript code. It encourages explicit typing for variables, function parameters and return values, improving code readability and maintainability. The skill aims to reduce ambiguity and potential errors by ensuring types are clearly defined throughout the codebase.

When to use it

  • Refactoring existing JavaScript codebases to TypeScript.
  • Writing new TypeScript modules or libraries where type safety is critical.
  • Reviewing code written by other developers to ensure consistent typing practices.
  • Generating TypeScript code from natural language descriptions of functions and data structures.

Key capabilities

  • Suggests adding type annotations to variables.
  • Recommends specifying parameter types in function signatures.
  • Promotes defining return types for functions.
  • Encourages the use of explicit type aliases and interfaces.

Example prompts

  • "Add type annotations to this JavaScript code snippet."
  • "Convert this function to TypeScript, including appropriate type definitions."
  • "Review this code for missing or unclear type annotations."

Tips & gotchas

This skill is most effective when used in conjunction with a basic understanding of TypeScript syntax and concepts. While it can suggest types, the agent may not always choose the optimal type – review its suggestions carefully.