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Template Literal Types

Checked
marius-townhouse·vlatest·backend

This skill generates TypeScript type definitions using template literal syntax for dynamic and reusable type creation, boosting code maintainability.

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 template-literal-types -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/template-literal-types/SKILL.md
Scanned
1 file, 205 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 allows you to work with TypeScript's template literal types. It enables the creation of new string types by interpolating values into a template string, and extracting parts of strings based on patterns. This is useful for generating type-safe code and performing complex string manipulations at compile time.

When to use it

  • Generating API request URLs: Construct URL paths dynamically based on input parameters, ensuring correct type checking.
  • Creating structured data types: Define custom types representing data formats like JSON or CSV by parsing strings into specific structures.
  • Extracting domain names from URLs: Automatically extract the domain name portion of a URL string and create a corresponding type.
  • Transforming input strings: Convert user-provided strings into different formats, such as converting camelCase to snake_case at compile time.

Key capabilities

  • String interpolation within template literals.
  • Pattern matching for extracting parts of strings.
  • Type manipulation and transformation based on string patterns.

Example prompts

  • "Create a type that represents the domain name from this URL: https://www.example.com/path."
  • "Generate a type representing the file extension from 'report.pdf'."
  • "Convert this camelCase string 'userName' to snake_case as a TypeScript type."

Tips & gotchas

  • Requires a solid understanding of TypeScript and its advanced type system features.
  • Complex template literal types can be difficult to debug; start with simpler examples.