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Typescript Advanced Patterns

Checked
nickcrew·vlatest·backend·MIT

Helps with TypeScript, patterns as part of developing backend services and APIs workflows.

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 nickcrew/claude-cortex --skill typescript-advanced-patterns -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

nickcrew

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 nickcrew/claude-ctx-plugin at bb47af79ad.

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

Commit
bb47af79ad
Manifest
skills/typescript-advanced-patterns/SKILL.md
Scanned
15 files, 1,182 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 provides expert guidance on leveraging TypeScript's advanced type system features to build robust and type-safe applications. It focuses on enabling developers to create sophisticated domain models, enforce business rules through types, and implement complex patterns with compile-time guarantees. The skill supports creating reusable libraries and integrating with frameworks that require advanced TypeScript typing techniques.

When to use it

  • Building type-safe APIs with strict contracts and validation.
  • Implementing complex domain models where compile-time enforcement is crucial.
  • Creating reusable libraries that benefit from sophisticated type inference.
  • Enforcing business rules directly within the type system.
  • Developing framework integrations requiring advanced TypeScript types.

Key capabilities

  • Conditional Types: Type selection based on conditions (type-level if/else).
  • Mapped Types: Transforming object types systematically (e.g., Partial, Readonly).
  • Template Literal Types: String manipulation at compile time.
  • Type Guards: Runtime checking with type narrowing.
  • Discriminated Unions: Type-safe state machines with exhaustiveness checking.
  • Branded Types: Nominal types to prevent primitive mixing.
  • Builder Pattern: Type-safe fluent APIs with progressive type constraints.
  • Advanced Generics: Utilizing constraints, inference, and higher-kinded type patterns.

Example prompts

  • "How can I use conditional types to validate the structure of a configuration object?"
  • "Show me an example of using mapped types to create a Readonly version of an interface."
  • "Explain how discriminated unions help in building type-safe state machines."

Tips & gotchas

  • This skill is best suited for developers already familiar with TypeScript fundamentals.
  • The references provided are detailed and may require some initial study to understand the concepts fully.
  • Consider analyzing your type safety requirements before selecting a specific pattern or technique.