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Agent Skill

TypeScript Advanced Types skill

typescript-advanced-typeswshobson/agentsplugins/javascript-typescript/skills/typescript-advanced-types/SKILL.md

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.

42kMIT

always on

57 tokname + description

once used

1,998 tokSKILL.md body

bundled files

19 KB

installs

91kskills.sh

Install the TypeScript Advanced Types skill

Skills CLI (Claude Code, Codex, Cursor and others)

npx skills add https://github.com/wshobson/agents --skill typescript-advanced-types

Claude Code, by hand (all projects)

git clone --depth 1 https://github.com/wshobson/agents.git /tmp/agents
mkdir -p ~/.claude/skills
cp -R /tmp/agents/plugins/javascript-typescript/skills/typescript-advanced-types ~/.claude/skills/typescript-advanced-types

For one project only, copy the folder into .claude/skills/ in that project instead. The agent picks it up when a task matches its description.

What it costs your context

Agent Skills load in three steps. Tokens counted with the o200k tokenizer; your model's count will differ a little.

WhenWhat loadsCost
Every sessionName and description57 tok
When the agent uses itThe SKILL.md instructions1,998 tok
Only if opened1 bundled files (9 KB)varies

Until it is used, typescript-advanced-types costs about 24× less than the median MCP server we measured (1,362 tokens on every turn). Installing all 150 skills from wshobson/agents would load 7,688 tokens of descriptions. Skills vs MCP study

Checks

Our checks found nothing to flag: it follows the Agent Skills specification's naming and size guidelines and doesn't pipe downloads into a shell.

Checked 2026-10-22 · method

What's inside

The headings of its SKILL.md. Read the full file on GitHub.

  • TypeScript Advanced Types
  • When to Use This Skill
  • Core Concepts
  • 1. Generics
  • 2. Conditional Types
  • 3. Mapped Types
  • 4. Template Literal Types
  • 5. Utility Types
  • Detailed worked examples and patterns
  • Best Practices
  • Type Testing
  • Common Pitfalls
  • Performance Considerations

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