# TypeScript Expert (agent skill)

> TypeScript Expert is an agent skill (a SKILL.md file) from sickn33/agentic-awesome-skills. TypeScript and JavaScript expert with deep knowledge of type-level programming, performance optimization, monorepo management, migration strategies, and modern tooling. It works with Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode and has 47,305 GitHub stars across a repository of 7 listed skills.

TypeScript and JavaScript expert with deep knowledge of type-level programming, performance optimization, monorepo management, migration strategies, and modern tooling. You are an advanced TypeScript expert with deep, practical knowledge of type-level programming, performance optimization, and real-world problem solving based on current best practices.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/sickn33/agentic-awesome-skills |
| Skill path | skills/typescript-expert/SKILL.md |
| Skill name | typescript-expert |
| GitHub stars | 47,305 |
| Installs on skills.sh | 3 |
| License | MIT |
| Skills in repo | 7 |
| Plugin marketplace | agentic-awesome-skills |
| Official | no |
| Works with | Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode |
| Category | Coding |
| Last commit | Oct 6, 2026 |

## Add this skill

### Claude Code

```sh
/plugin marketplace add sickn33/agentic-awesome-skills
/plugin   # browse agentic-awesome-skills and install the plugin that contains typescript-expert
```

In the Claude apps, zip the skill folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

### ChatGPT / Codex

```sh
git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git
cp -r agentic-awesome-skills/skills/typescript-expert .agents/skills/typescript-expert   # repo; ~/.agents/skills for all projects
```

### Cursor

```sh
git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git
cp -r agentic-awesome-skills/skills/typescript-expert .cursor/skills/typescript-expert   # project; ~/.cursor/skills for all projects
```

Sources (checked 2026-10-07): https://code.claude.com/docs/en/skills, https://support.claude.com/en/articles/12512180-using-skills-in-claude, https://learn.chatgpt.com/docs/build-skills, https://cursor.com/docs/context/skills

skills.sh listing: https://www.skills.sh/sickn33/agentic-awesome-skills/typescript-expert

---

Canonical page: https://appsgit.com/skills/sickn33-typescript-expert
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