wadler-monadic-elegance

Q: What is a Claude Code skill and how does the wadler-monadic-elegance 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. wadler-monadic-elegance is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: General · Sub-category: general-misc · Last updated: 2026-07-20

Write functional code in the style of Philip Wadler, type theorist and monad evangelist. Emphasizes monadic composition, type-driven design, and the deep connection between logic and computation. Use when designing composable abstractions or understanding categorical patterns.

Security BStatic scan: minor findingsHow grading works ›

What this skill does

wadler-monadic-elegance is a community-contributed Claude Code skill in the general-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/wadler/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when designing composable abstractions or understanding categorical patterns.

Who uses this skill

The wadler-monadic-elegance Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 196,000+ 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/wadler
curl -L https://claudskills.com/skills/wadler/SKILL.md \
  -o ~/.claude/skills/wadler/SKILL.md

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

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

📱 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.

See pricing → Download desktop app

Frequently asked questions

How do I install the wadler-monadic-elegance Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/wadler/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the wadler-monadic-elegance skill do?

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 wadler-monadic-elegance skill?

Use wadler-monadic-elegance when your Claude Code task falls under the General category — specifically in the general 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 wadler-monadic-elegance" or describe the task and let Claude pick). Browse related skills at /category/general/.

What is a Claude Code skill and how does the wadler-monadic-elegance 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. wadler-monadic-elegance is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/copyleftdev/sk1llz/blob/HEAD/paradigms/functional/wadler/SKILL.md
License: Apache-2.0
Author: copyleftdev

Cite this skill

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

APA

copyleftdev. (2026). wadler-monadic-elegance [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/wadler/

BibTeX

@misc{wadler-2026,
  author    = {copyleftdev},
  title     = {wadler-monadic-elegance [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/wadler/}
}

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

[![ClaudSkills](https://claudskills.com/badge/wadler.svg)](https://claudskills.com/skills/wadler/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

Security scan

Grade B · scanned 2026-09-28 — free static scan against the OWASP Agentic Skills Top 10.

The scan flagged 1 of 10 categories (obfuscation), including a high-severity pattern. Patterns shown inside code fences are weighted as examples rather than instructions — read the grading methodology for what this does and does not guarantee.

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
✓ Filesystem
✓ Persistence
⚠ Obfuscation
✓ Network

Show this grade on your repo (click to copy):

[![Security: B](https://img.shields.io/badge/Security-B-558b2f)](https://claudskills.com/skills/wadler/#security)

More General skills

Browse all General skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all General skills → Top 100 skills

Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

Part of Acreator Store — Adam Lankamer's AI tools: PerfectStudio · Ucaption · UTagger · AutoXPoster · TestYourSkills · AutomationFlows · Au Naturel · Telegram @acreatorstore