Functype
Help developers use functype functional programming patterns in their TypeScript projects. Use this skill when converting imperative/OOP code to functional patterns, looking up functype APIs and methods, handling nulls with Option, managing errors with Either/Try, composing effects with IO (lazy effects, typed errors, dependency injection, retry), working with immutable collections like List and Set, running async operations with Task, or making HTTP requests with Http (typed fetch wrapper).
What this skill does
Functype is a community-contributed Claude Code skill in the tools-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/functype/ and loads when your prompt matches the skill's trigger.
Who uses this skill
The Functype Claude Code skill is built for developers, power users, and teams automating repetitive workflows and improving developer experience. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ 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/functype
curl -L https://claudskills.com/skills/functype/SKILL.md \
-o ~/.claude/skills/functype/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/functype/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/functype/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\functype\SKILL.md on Windows. See the full install guide for step-by-step instructions.
Telegram
📱 Install from your phone or desktop Telegram
Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →
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.
Frequently asked questions
How do I install the Functype Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy
SKILL.md from the source repository to
~/.claude/skills/functype/SKILL.md and restart Claude Code. Both flows are detailed at
claudskills.com/install/.
What does the Functype skill do?
Help developers use functype functional programming patterns in their TypeScript projects. Use this skill when converting imperative/OOP code to functional patterns, looking up functype APIs and methods, handling nulls with Option, managing errors with Either/Try, composing effects with IO (lazy effects, typed errors, dependency injection, retry), working with immutable collections like List and Set, running async operations with Task, or making HTTP requests with Http (typed fetch wrapper).
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Functype skill?
Use Functype when your Claude Code task falls under the Dev Tools category — specifically in the tools misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Functype" or describe the task and let Claude pick). Browse related skills at
/category/tools/.
What is a Claude Code skill and how does the Functype skill fit in?
A Claude Code skill is a
SKILL.md file that lives under
~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Functype is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Dev Tools category. Learn more at
/learn/what-is-a-claude-skill/.
Attribution & license
Cite this skill
If you reference this skill in a blog post, paper, or documentation, you can cite it as:
APA
jordanburke. (2026). Functype [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/functype/
BibTeX
@misc{functype-2026,
author = {jordanburke},
title = {Functype [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/functype/}
}Embed this skill
Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →
Badge
[](https://claudskills.com/skills/functype/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)
<script>
<script src="https://claudskills.com/embed/functype.js" async></script>
<iframe>
<iframe src="https://claudskills.com/embed/functype.html" width="100%" height="160" frameborder="0" loading="lazy" title="ClaudSkills: Functype"></iframe>
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