Is it compatible with Phoenix and LiveView?

Absolutely. It includes rules for adding @impl true to callbacks and provides patterns for handling Ecto changeset errors and validation.

What is the Elixir Essentials Claude Code Skill?

It is a specialized guide that provides Claude with mandatory rules for writing idiomatic Elixir code, ensuring every .ex and .exs file follows professional best practices.

How does this skill improve Elixir code quality?

By enforcing specific patterns like pattern matching, pipe operators, and the use of 'with' statements, it eliminates common code smells and reduces nesting.

When should I invoke this skill?

It is designed to be invoked before making any changes to Elixir source files (.ex) or script files (.exs) to ensure consistent standards from the start.

Does it support the 'let it crash' philosophy?

Yes, the skill explicitly instructs the AI to avoid defensive programming for impossible states, relying instead on supervision trees and restarts.

Elixir Essentials

Name: Elixir Essentials
Author: j-morgan6

byj-morgan6

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API Development

Enforces idiomatic Elixir coding standards and functional programming best practices for robust, maintainable applications.

Elixir Essentials is a specialized capability for Claude Code that ensures all Elixir development adheres to the language's core philosophies and best practices. It prioritizes functional patterns such as pattern matching over conditional logic, utilizes the pipe operator for readable data transformations, and implements the 'let it crash' philosophy for building fault-tolerant systems. By standardizing the use of tagged tuples, guards, and list comprehensions, this skill helps developers produce high-quality, production-grade Elixir code that is consistent with the community's highest standards.

Key Features

01Enforces the pipe operator (|>) for readable and maintainable function chaining

02Enforces @impl true for all Elixir and Phoenix callback functions like GenServers and LiveView

03Automates idiomatic error handling using tagged tuples and bang (!) function conventions

04Streamlines complex operations using 'with' statements to avoid nested case logic

05Prioritizes pattern matching over if/else for cleaner control flow and data extraction

0673 GitHub stars

Use Cases

01Building robust Phoenix Framework backends with consistent error handling and validation

02Implementing complex business logic using fault-tolerant GenServers and supervision trees

03Refactoring existing Elixir modules to improve readability and functional purity

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add j-morgan6/elixir-phoenix-guide elixir-essentials

For use in Claude.ai and ChatGPT

Download Skill