functional-programming

3 stars
16
C

Use when writing functional code - covers FP best practices (Lea differs from traditional FP languages)

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Installation for Agentic Skill

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skilz install mcclowes/lea/functional-programming
skilz install mcclowes/lea/functional-programming --agent opencode
skilz install mcclowes/lea/functional-programming --agent codex
skilz install mcclowes/lea/functional-programming --agent gemini

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Extract and copy to ~/.claude/skills/ then restart Claude Desktop

1. Clone the repository:
git clone https://github.com/mcclowes/lea
2. Copy the agent skill directory:
cp -r lea/.claude/skills/functional-programming ~/.claude/skills/

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Related Agentic Skills

Agentic Skill Details

Repository
lea
Stars
3
Type
Non-Technical
Meta-Domain
development
Primary Domain
github
Market Score
16

Agent Skill Grade

C
Score: 74/100 Click to see breakdown

Score Breakdown

Spec Compliance
12/15
PDA Architecture
20/30
Ease of Use
19/25
Writing Style
8/10
Utility
14/20
Modifiers: +1

Areas to Improve

  • Missing workflow for FP pattern selection
  • No validation or testing guidance
  • Vague 'avoid unless necessary' guidance

Recommendations

  • Address 2 high-severity issues first
  • Add trigger phrases to description for discoverability
  • Add table of contents for files over 100 lines

Graded: 2026-01-24

Developer Feedback

I was digging through the functional-programming skill and noticed you're handling composition patterns pretty thoroughly—curious how you settled on your approach to currying, since that's where a lot of folks hit friction with the learning curve.

Links:

The TL;DR

You're at 74/100, solid C-grade territory. This is based on Anthropic's 5-pillar rubric for skill quality. Your strongest area is Spec Compliance (12/15)—the YAML frontmatter and naming are dialed in. Weakest pull is Progressive Disclosure Architecture (20/30)—the single-file approach works for 40 lines, but you're losing depth points for not layering content. Real talk: two high-severity fixes could bump you up 4 points pretty easily.

What's Working Well

  • Spec Compliance is locked down (12/15)—Valid YAML, correct naming conventions, required fields all present. No friction there.
  • Clear trigger phrasing in your description—"Use when writing functional code" is obvious enough that developers know when to activate this. That's worth something.
  • The Quick Start example actually runs[1, 2, 3] /> map(double) /> filter((x) -> x > 2) is a real pipeline showing composition. That beats vague explanations.
  • No fluff language—Your writing stays technical and objective. No marketing speak creeping in.

The Big One: Missing Workflow for Pattern Selection

Here's what's holding you back: developers using this skill have no decision tree for when to apply FP patterns versus alternatives. You list Core Principles as bullets, but there's no "use pure functions when [X], use pipes when [Y], use maybe when [Z]" framework.

Why it matters: FP in Lea isn't universal—sometimes imperative is clearer. Without guidance on when to choose FP, ...

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