Agent skill

Typescript

by Gentleman-Programming in Gentleman-Programming/Gentleman-Skills

TypeScript strict patterns and best practices. An agent skill from Gentleman-Programming/Gentleman-Skills.

Apache-2.0Auto-check passed

Install Typescript

skills CLI

$ npx skills add Gentleman-Programming/Gentleman-Skills --skill typescript -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install Gentleman-Programming/Gentleman-Skills typescript --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/Gentleman-Programming/Gentleman-Skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/curated/typescript .claude/skills/typescript && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "typescript" agent skill from https://github.com/Gentleman-Programming/Gentleman-Skills/tree/main/curated/typescript into .claude/skills/typescript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "typescript", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/Gentleman-Programming/Gentleman-Skills/tree/main/curated/typescript

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add Gentleman-Programming/Gentleman-Skills --skill typescript -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install Gentleman-Programming/Gentleman-Skills typescript --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Gentleman-Programming/Gentleman-Skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/curated/typescript .agents/skills/typescript && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "typescript" agent skill from https://github.com/Gentleman-Programming/Gentleman-Skills/tree/main/curated/typescript into .agents/skills/typescript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "typescript", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add Gentleman-Programming/Gentleman-Skills --skill typescript -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install Gentleman-Programming/Gentleman-Skills typescript --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Gentleman-Programming/Gentleman-Skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/curated/typescript .cursor/skills/typescript && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "typescript" agent skill from https://github.com/Gentleman-Programming/Gentleman-Skills/tree/main/curated/typescript into .cursor/skills/typescript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "typescript", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/Gentleman-Programming/Gentleman-Skills.git --path curated/typescript

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add Gentleman-Programming/Gentleman-Skills --skill typescript -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install Gentleman-Programming/Gentleman-Skills typescript --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Gentleman-Programming/Gentleman-Skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/curated/typescript .gemini/skills/typescript && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "typescript" agent skill from https://github.com/Gentleman-Programming/Gentleman-Skills/tree/main/curated/typescript into .gemini/skills/typescript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "typescript", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install Gentleman-Programming/Gentleman-Skills typescript

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add Gentleman-Programming/Gentleman-Skills --skill typescript -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/Gentleman-Programming/Gentleman-Skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/curated/typescript .github/skills/typescript && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "typescript" agent skill from https://github.com/Gentleman-Programming/Gentleman-Skills/tree/main/curated/typescript into .github/skills/typescript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "typescript", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add Gentleman-Programming/Gentleman-Skills --skill typescript -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install Gentleman-Programming/Gentleman-Skills typescript --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Gentleman-Programming/Gentleman-Skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/curated/typescript .opencode/skills/typescript && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "typescript" agent skill from https://github.com/Gentleman-Programming/Gentleman-Skills/tree/main/curated/typescript into .opencode/skills/typescript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "typescript", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: typescript
GitHub stars: 657
Token cost: ~610 tokens
SKILL.md length: 36 words
Files: 1
Skills in repo: 23
Repo updated: Mar 28, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

TypeScript strict patterns and best practices. An agent skill from Gentleman-Programming/Gentleman-Skills.

SKILL.md covers Const Types Pattern (REQUIRED), Flat Interfaces (REQUIRED), Never Use any and Utility Types, plus 3 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Typescript is an agent skill from Gentleman-Programming/Gentleman-Skills. TypeScript strict patterns and best practices. Trigger: When writing TypeScript code - types, interfaces, generics.

Its SKILL.md is about 610 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It works with TypeScript. The repository describes itself as: Community-driven AI agent skills for Claude Code, OpenCode, and other AI assistants. Curated patterns and community contributions. The licence is Apache-2.0.

Example prompts

“/typescript”

What it can do on your machine

Read from SKILL.md and the folder at commit c8036a3. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are typescript).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Typescript loads about 610 tokens when it runs. Until then it costs about 32 tokens; SKILL.md has 36 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~32
When it runs · the whole SKILL.md, loaded when a task matches: ~610

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from Gentleman-Programming/Gentleman-Skills at commit c8036a3, republished under its Apache-2.0 licence (© Gentleman-Programming). 36 words, ~610 tokens.

Download SKILL.mdSave it as .claude/skills/typescript/SKILL.md (or your agent's skills folder).

name: typescript
description: TypeScript strict patterns and best practices. Trigger: When writing TypeScript code - types, interfaces, generics.
license: Apache-2.0
metadata.author: gentleman-programming
metadata.version: 1.0

Const Types Pattern (REQUIRED)

typescript

// ✅ ALWAYS: Create const object first, then extract type
const STATUS = {
  ACTIVE: "active",
  INACTIVE: "inactive",
  PENDING: "pending",
} as const;

type Status = (typeof STATUS)[keyof typeof STATUS];

// ❌ NEVER: Direct union types
type Status = "active" | "inactive" | "pending";

Why? Single source of truth, runtime values, autocomplete, easier refactoring.

Flat Interfaces (REQUIRED)

typescript

// ✅ ALWAYS: One level depth, nested objects → dedicated interface
interface UserAddress {
  street: string;
  city: string;
}

interface User {
  id: string;
  name: string;
  address: UserAddress;  // Reference, not inline
}

interface Admin extends User {
  permissions: string[];
}

// ❌ NEVER: Inline nested objects
interface User {
  address: { street: string; city: string };  // NO!
}

Never Use `any`

typescript

// ✅ Use unknown for truly unknown types
function parse(input: unknown): User {
  if (isUser(input)) return input;
  throw new Error("Invalid input");
}

// ✅ Use generics for flexible types
function first<T>(arr: T[]): T | undefined {
  return arr[0];
}

// ❌ NEVER
function parse(input: any): any { }

Utility Types

typescript

Pick<User, "id" | "name">     // Select fields
Omit<User, "id">              // Exclude fields
Partial<User>                 // All optional
Required<User>                // All required
Readonly<User>                // All readonly
Record<string, User>          // Object type
Extract<Union, "a" | "b">     // Extract from union
Exclude<Union, "a">           // Exclude from union
NonNullable<T | null>         // Remove null/undefined
ReturnType<typeof fn>         // Function return type
Parameters<typeof fn>         // Function params tuple

Type Guards

typescript

function isUser(value: unknown): value is User {
  return (
    typeof value === "object" &&
    value !== null &&
    "id" in value &&
    "name" in value
  );
}

Import Types

typescript

import type { User } from "./types";
import { createUser, type Config } from "./utils";

Keywords

typescript, ts, types, interfaces, generics, strict mode, utility types

Files

Just SKILL.md in curated/typescript of Gentleman-Programming/Gentleman-Skills.

Open the folder on GitHubat commit c8036a3

Compare with similar skills

Typescript next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Typescript compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Typescript this skillGentleman-Programming/Gentleman-Skills	657	—	~610	Automated safety check: Pass	Apache-2.0	6 mo ago
MCP Server Builderanthropics/skills	180k	62 repos	~2.3k	Automated safety check: Pass	Apache-2.0	2 days ago
Web Artifacts Builderanthropics/skills	180k	40 repos	~769	Automated safety check: Pass	Apache-2.0	2 days ago
Typescript Advanced Typesrolling-scopes/rsschool-app	10k	24 repos	~4.2k	Automated safety check: Pass	MPL-2.0	3 days ago
Code Review ChecklistshareAI-lab/learn-claude-code	78k	5 repos	~1.1k	Automated safety check: Pass	MIT	9 days ago
MCP Server BuildershareAI-lab/learn-claude-code	78k	5 repos	~1.2k	Automated safety check: Pass	MIT	9 days ago

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Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.
180k GitHub starsUsed in 62 repos~2.3k tokens
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Web Artifacts Builder
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Builds multi-component claude.ai HTML artifacts as a small React, TypeScript and Tailwind project, then bundles it into one shareable HTML file.
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Frontend & DesignAuto-check passed
Typescript Advanced Types
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Questions about Typescript

What does Typescript do?

TypeScript strict patterns and best practices. An agent skill from Gentleman-Programming/Gentleman-Skills. Typescript is an agent skill from Gentleman-Programming/Gentleman-Skills. TypeScript strict patterns and best practices.

How do I install Typescript in Claude Code?

Run `npx skills add Gentleman-Programming/Gentleman-Skills --skill typescript -a claude-code`. Or copy the skill folder (curated/typescript in Gentleman-Programming/Gentleman-Skills) into .claude/skills/typescript in your project. Claude Code loads it when a task matches its description.

How do I install Typescript in Codex?

Run `npx skills add Gentleman-Programming/Gentleman-Skills --skill typescript -a codex`. Or copy the skill folder (curated/typescript in Gentleman-Programming/Gentleman-Skills) into .agents/skills/typescript in your project. Codex loads it when a task matches its description.

Can I use Typescript in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Gentleman-Programming/Gentleman-Skills --skill typescript -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/typescript, .gemini/skills/typescript, .github/skills/typescript and .opencode/skills/typescript in your project.

What does Typescript need to run?

SKILL.md names no scripts, command-line tools or credentials: Typescript is instructions for the agent only.

Does Typescript access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Typescript safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Typescript use?

Typescript is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Typescript use?

About 610 tokens (SKILL.md is roughly 2.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Typescript?

Skills that share tags, products or a category with Typescript: MCP Server Builder (anthropics/skills, 180k stars), Web Artifacts Builder (anthropics/skills, 180k stars), Typescript Advanced Types (rolling-scopes/rsschool-app, 10k stars) and Code Review Checklist (shareAI-lab/learn-claude-code, 78k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Typescript?

Gentleman-Programming (a GitHub organization) maintains it in Gentleman-Programming/Gentleman-Skills, which has 657 GitHub stars. The repository holds 23 skills in this directory. The repository was last updated on March 28, 2026.

Source: Gentleman-Programming/Gentleman-Skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Typescript

Install Typescript

Facts

At a glance

What it does

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Const Types Pattern (REQUIRED)

Flat Interfaces (REQUIRED)

Never Use `any`

Utility Types

Type Guards

Import Types

Keywords

Files

Compare with similar skills

Similar skills

MCP Server Builder

Web Artifacts Builder

Typescript Advanced Types

Code Review Checklist

MCP Server Builder

Nx Import

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Questions about Typescript

Install Typescript

Facts

At a glance

What it does

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Const Types Pattern (REQUIRED)

Flat Interfaces (REQUIRED)

Never Use any

Utility Types

Type Guards

Import Types

Keywords

Files

Compare with similar skills

Similar skills

More from Gentleman-Programming/Gentleman-Skills

Related

Questions about Typescript

Never Use `any`