How does this skill improve Haskell code safety?

It enforces the use of safe alternatives like readMaybe instead of read, and NonEmpty collections instead of standard lists for operations like head and tail.

What is Relude in Haskell development?

Relude is a modern, safe, and performant alternative to the standard Haskell Prelude that minimizes partial functions and promotes best practices like using Text over String.

Why does this skill prioritize Text over String?

Relude and this skill promote Text for all operations to avoid the performance overhead and space leaks associated with the legacy linked-list String type.

Can this skill help with Cabal configuration?

Yes, it provides the specific mixin configurations required to adopt Relude project-wide without having to manually add NoImplicitPrelude to every file.

Does it handle monadic IO operations?

Yes, it includes patterns for using Relude's lifted IO functions, allowing you to use operations like readIORef directly without needing liftIO wrappers.

Haskell Relude Best Practices

Name: Haskell Relude Best Practices
Author: birdgg

bybirdgg

0•

API Development

Implements Relude conventions and safe patterns to ensure modern, high-performance, and type-safe Haskell development.

This skill equips Claude with the expertise to navigate the Relude ecosystem, a modern alternative to the standard Haskell Prelude. It provides detailed guidance on setting up project-wide adoption via Cabal mixins, migrating legacy codebases, and enforcing safety-first patterns like using Text over String and NonEmpty for collection safety. By integrating Relude-specific best practices such as O(n log n) nub operations and monadic conditionals, this skill helps developers eliminate common Haskell anti-patterns and leverage lifted IO functions for cleaner, more robust code.

Key Features

01Enforcement of Text-first philosophy to avoid legacy String performance issues

020 GitHub stars

03Automatic migration guidance from standard Prelude to Relude safe patterns

04Optimized data processing with efficient nub operations and lifted IO

05Project-wide configuration using Cabal mixins for seamless Relude integration

06Type-safe collection handling using NonEmpty and viaNonEmpty bridges

Use Cases

01Setting up a new Haskell project with modern defaults and efficient text handling

02Migrating a legacy Haskell project from Prelude to Relude for improved safety

03Refactoring Haskell code to use monadic conditionals and lifted IO operations

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add birdgg/haskell-claude haskell-relude

For use in Claude.ai and ChatGPT

Download Skill