What are Usage Rules in Elixir?

Usage rules are a community convention where Elixir packages include a usage-rules.md file containing coding conventions, patterns, and examples of what to do or avoid.

Can this skill fetch documentation for packages not currently in my deps?

Yes, if the usage rules aren't in your project dependencies, the skill can fetch the package from Hex, unpack it, and extract the rules into a local cache.

Which Elixir packages are supported by this skill?

It primarily supports the Ash ecosystem, including ash, ash_postgres, ash_phoenix, spark, and igniter, but can search for usage-rules.md in any package.

How does it handle large documentation files?

The skill uses context-aware extraction to find specific sections (like 'querying' or 'authorization') and provides only the relevant content rather than dumping the entire file.

Elixir Ash Usage Rules

Name: Elixir Ash Usage Rules
Author: jusi-dev

byjusi-dev

0•

Learning & Documentation

Retrieves package-specific coding conventions, best practices, and pattern examples from Elixir's Ash Framework ecosystem.

This skill optimizes Elixir development by searching for and extracting guidance from usage-rules.md files within your project's dependencies. It specializes in the Ash Framework ecosystem—including Ash Postgres, Ash Phoenix, and Igniter—providing developers with immediate access to domain-specific idioms, common pitfalls to avoid, and side-by-side 'Good vs. Bad' code examples. By surfacing these community-driven conventions directly within Claude Code, it helps ensure your implementation follows current best practices without requiring manual documentation deep-dives.

Key Features

01Context-aware extraction of relevant documentation sections like Actions, Policies, or Queries

02Deep support for the Ash ecosystem including Spark, Igniter, and Reactor

03Detailed identification of #GOOD vs #BAD code patterns to prevent common mistakes

04Smart version-aware searching across project dependencies and local .usage-rules caches

050 GitHub stars

06Automatic fetching and caching of usage rules from Hex packages when missing locally

Use Cases

01Onboarding to an Ash Framework project by reviewing core idioms and project overviews

02Validating Elixir code against package-specific conventions during code reviews or refactoring

03Troubleshooting complex Ash action or relationship configurations using community patterns

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add jusi-dev/dev-marketplace usage-rules

For use in Claude.ai and ChatGPT

Download Skill