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Typescript Narrows

Category: Engineering  ·  Sub-category: languages  ·  Last updated:
lang:typescripttype:review
Provides a single, well-reasoned TypeScript opinion for every common decision point. Eliminates the "multiple ways to do it" problem when writing, refactoring, or reviewing TypeScript code. Use when generating TypeScript, performing TypeScript code review, or deciding between multiple valid TypeScript patterns.

From the source SKILL.md

One opinion per decision point. When TypeScript gives you five valid ways, this skill picks one and tells you why.

What this skill does

Typescript Narrows is a community-contributed Claude Code skill in the languages sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/typescript-narrows/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when generating TypeScript, performing TypeScript code review, or deciding between multiple valid TypeScript patterns.

Who uses this skill

The Typescript Narrows Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 70,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/typescript-narrows
curl -L https://claudskills.com/skills/typescript-narrows/SKILL.md \
  -o ~/.claude/skills/typescript-narrows/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/typescript-narrows/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/typescript-narrows/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\typescript-narrows\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
sethlivingston. (2026). Typescript Narrows [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/typescript-narrows/
BibTeX
@misc{typescript-narrows-2026,
  author    = {sethlivingston},
  title     = {Typescript Narrows [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/typescript-narrows/}
}

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