---
title: "TypeScript Advanced Types - Air Market"
description: "Sometimes the shape you need cannot be expressed with plain TypeScript annotations, and the compiler waves through things it should reject. This walks through the harder parts of the type system - ge…"
canonical: "https://airmarket.ai/app/typescript-advanced-types"
---

[Air Market](/) / [Developer Tools](/category/devtools) / TypeScript Advanced Types

Skill by [Seth Hobson](/@wshobson)

# TypeScript Advanced Types

Make the compiler catch the mistakes your types currently allow

## What this does

Sometimes the shape you need cannot be expressed with plain TypeScript annotations, and the compiler waves through things it should reject. This walks through the harder parts of the type system - generics, conditional and mapped types, template literals, utility types - so you can express it. Reach for it when the types are the difficult part of the job.

### Top 3 things it does for you

- Work out the type logic a tricky API needs
- Build type utilities you can reuse
- Get more errors caught before the code runs

## Information

**TypeScript Advanced Types at a glance**

|  |  |
| --- | --- |
| Kind | Skill |
| Publisher | [Seth Hobson](/@wshobson) |
| Category | [Developer Tools](/category/devtools) |
| Works with | Agent Skills - an open standard supported by 40+ agents |
| Size | 17 KB |
| Licence | MIT |
| Repository | [wshobson/agents](https://github.com/wshobson/agents/tree/be57c0b2e3c05c528ca6132b87410b385718775f/plugins/javascript-typescript/skills/typescript-advanced-types) |
| GitHub stars | 39,077 (as of Nov 2026) |
| Installs | 99,054, counted by skills.sh (Nov 2026) |

## Security report

**Verified.** AIR scanned this exact version of TypeScript Advanced Types and recorded 0 findings and 2 flagged items. AIR's verdict: **safe**.

**What TypeScript Advanced Types's check was run against**

|  |  |
| --- | --- |
| Commit | be57c0b2e3c05c528ca6132b87410b385718775f |
| Content hash | 933342c979df9c5dc7ce9d5484f5c2c6abdd7d461918fb638fa4a2133c43ee73 |
| Files read | [Browse the files at this exact commit](https://github.com/wshobson/agents/blob/be57c0b2e3c05c528ca6132b87410b385718775f/plugins/javascript-typescript/skills/typescript-advanced-types/SKILL.md) |

A scan is named by the exact content it read, not by a version number. A different version is a different artifact, and nothing here applies to a version AIR has not scanned.

[Read the full security report for TypeScript Advanced Types](/security/typescript-advanced-types)

## About TypeScript Advanced Types

TypeScript's advanced type system covers generics, conditional types, mapped types, template literals and utility types, and it is where type-safe applications are actually built. This skill is about working with that part of the language.

Use it when you are implementing complex type logic, creating reusable type utilities, or trying to get more of your correctness guarantees enforced at compile time.

## What's inside

- SKILL.md - instructions
- references/details.md - reference

## Questions

### Is TypeScript Advanced Types safe to install?

AIR scanned this exact version of TypeScript Advanced Types and recorded 0 findings and 2 flagged items. AIR's verdict: safe. The verdict is named by the content that was read, at commit be57c0b2e3c0, so it cannot drift onto a version nobody scanned. The full report is at https://airmarket.ai/security/typescript-advanced-types.

### How do I install TypeScript Advanced Types?

Open https://airmarket.ai/app/typescript-advanced-types on Air Market and use the install action: Air Market hands Claude a prompt naming this exact skill, and Claude sets it up. Source, pinned to the exact commit this listing describes: https://github.com/wshobson/agents/tree/be57c0b2e3c05c528ca6132b87410b385718775f/plugins/javascript-typescript/skills/typescript-advanced-types. Install from that link, not the branch.

## Related on Air Market

- [More Developer Tools listings](/category/devtools)
- [Everything by Seth Hobson](/@wshobson)

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Canonical URL: <https://airmarket.ai/app/typescript-advanced-types>