typescript-advanced-types SKILL.md skillA

typescript-advanced-types from bastani-inc/atomic is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add bastani-inc/atomic/typescript-advanced-types@git:20260515.c4cb45d

Pins git:20260515.c4cb45d in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
bastani-inc/atomic
Path
.agents/skills/typescript-advanced-types/SKILL.md
Versions recorded
3
Latest version
git:20260515.c4cb45d, committed May 15, 2026
First version recorded
Apr 8, 2026
Size
17,060 bytes
Repository stars
874
License
a license file GitHub does not identify

Master TypeScript's advanced type system including generics, conditional types, mapped types, template literals, and utility types for building type-safe applications. Use when implementing complex type logic, creating reusable type utilities, or ensuring compile-time type safety in TypeScript projects.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# TypeScript Advanced Types

Comprehensive guidance for mastering TypeScript's advanced type system including generics, conditional types, mapped types, template literal types, and utility types for building robust, type-safe applications.

## When to Use This Skill

- Building type-safe libraries or frameworks
- Creating reusable generic components
- Implementing complex type inference logic
- Designing type-safe API clients
- Building form validation systems
- Creating strongly-typed configuration objects
- Implementing type-safe state management
- Migrating JavaScript codebases to TypeScript

## Core Concepts

### 1. Generics

**Purpose:** Create reusable, type-flexible components while maintaining type safety.

**Basic Generic Function:**

```typescript
function identity<T>(value: T): T {
  return value;
}

const num = identity<number>(42); // Type: number
const str = identity<string>("hello"); // Type: string
const auto = identity(true); // Type inferred: boolean
```

**Generic Constraints:**

```typescript
interface HasLength {
  length: number;
}

function logLength<T extends HasLength>(item: T): T {
  console.log(item.length);
  return item;
}
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add bastani-inc/atomic/typescript-advanced-types@sha256:6f30bb7843ce7a35

The line at the top of this page pins the label git:20260515.c4cb45d, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_ksvgk2rwd3qfuo4d.svg)](https://markdownregistry.com/a/art_ksvgk2rwd3qfuo4d)

5 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between Apr 8, 2026 and May 15, 2026, about one every 18 days.

versioncommittedcommitsizeaudit
git:20260515.c4cb45d latest2026-05-15 c4cb45d 17,060 BA view · diff
git:20260430.20953442026-04-30 2095344 16,852 BA view · diff
git:20260408.8fd14892026-04-08 8fd1489 16,834 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (17060 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

bastani-inc/atomic · 874 stars · license a license file GitHub does not identify · pushed 2026-11-03 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ksvgk2rwd3qfuo4d
GET https://markdownregistry.com/api/v1/resolve?ref=bastani-inc/atomic/typescript-advanced-types
GET https://markdownregistry.com/api/v1/blob/6f30bb7843ce7a3555d90be28419f28890ab09ce8c40121c4080bddfbe843af9

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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