typescript-advanced — Claude Code skill: features and installation
Guides agents through advanced TypeScript types and compile-time contracts. Use it when generic inference or reusable type utilities are the hard part.
npx skills add pedronauck/skills --skill typescript-advanced -a claude-codeWhat typescript-advanced does
This skill covers TypeScript work involving generics, conditional and mapped types, template literal types, and inference. Its reference files focus on core concepts, reusable patterns, inference and narrowing, plus compiler settings and maintainability: references/core-concepts.md, references/advanced-patterns.md, references/type-inference.md, and references/best-practices.md.
The guidance favors small types that express the needed contract. At boundaries with untrusted values, it recommends unknown followed by narrowing. It also says to keep the project’s existing tsconfig; sample configurations are not a reason to change it. Run the repository’s affected typecheck gate. For one ordinary call site, the skill advises against building an elaborate generic framework.
What it helps with
- infer a function’s return type from its generic arguments
- model relationships with conditional and mapped types
- build reusable utilities for deeply nested types
- test type narrowing and inference at compile time
- keep advanced types aligned with the existing
tsconfig
Example prompts for the agent
- Infer this function’s result type from its arguments using generics.
- Model this relationship with conditional types and
infer. - Check this type contract and suggest a compile-time test in the existing suite.
How to install typescript-advanced
1Skills CLI (Vercel)
npx skills add pedronauck/skills --skill typescript-advanced -a claude-code2Manually: put the files in place
~/.claude/skills/typescript-advanced/SKILL.mdCopy the whole skill folder; for one project use .claude/skills/typescript-advanced/
1Skills CLI (Vercel)
npx skills add pedronauck/skills --skill typescript-advanced -a codex2Manually: put the files in place
.agents/skills/typescript-advanced/SKILL.mdFor all projects use ~/.agents/skills/
1Skills CLI (Vercel)
npx skills add pedronauck/skills --skill typescript-advanced -a cursor2Manually: put the files in place
.cursor/skills/typescript-advanced/SKILL.mdCursor also reads .agents/skills/ and .claude/skills/
1GitHub CLI
gh skill install pedronauck/skills typescript-advanced2Manually: put the files in place
.github/skills/typescript-advanced/SKILL.md1Skills CLI (Vercel)
npx skills add pedronauck/skills --skill typescript-advanced -a gemini-cli2Platform CLI
gemini skills install https://github.com/pedronauck/skills --path skills/mine/typescript-advancedManually: put the files in place
.devin/skills/typescript-advanced/SKILL.mdThe legacy .windsurf/skills/ path still works
Skills CLI (Vercel)
npx skills add pedronauck/skills --skill typescript-advanced -a opencodeClaude.ai
Zip the folder and upload it in Settings → Capabilities → Skills
Step by step, with commands for each platform: How to install skills in Claude Code: five ways
Questions about typescript-advanced
How do I install typescript-advanced in Claude Code?
Run npx skills add pedronauck/skills --skill typescript-advanced -a claude-code, then use ~/.claude/skills/typescript-advanced/SKILL.md.
What does typescript-advanced do?
It guides TypeScript type design for generics, conditional and mapped types, template literals, and inference. It also covers reusable type utilities and compile-time contracts.
Which platforms support typescript-advanced?
It supports Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, and OpenCode.
