elixir-pro
Helps your agent write code in the Elixir language. It uses advanced patterns to create fast, reliable, and networked programs.
What it does
This AI agent helps write and review code in the Elixir programming language. It focuses on creating programs that work well even if something goes wrong and can handle many tasks at once.
When to use it
- ✓When building a new Elixir program that needs to be reliable.
- ✓When reviewing existing Elixir code to improve its quality.
- ✓When working with the Phoenix framework to create web applications.
Example of what to ask your AI
“Review this Elixir code for correctness, idiomatic design, performance, and test coverage.”
Want more? Open the sections below.
How to use
The easiest way: copy the message below and paste it into Claude, ChatGPT, Cursor or any AI. It reads the skill and follows the instructions.
Skill link
Ready-to-paste message
How it works
It understands Elixir's building patterns to create robust and concurrent systems. It also knows how to use the Phoenix framework for web applications and how to test the code.
Installation
Easiest way: copy the skill link and paste it into Claude, ChatGPT or Cursor asking it to follow the instructions.
In the terminal (Claude Code, Codex, Cursor), in your project folder:
npx skills add sickn33/agentic-awesome-skills --skill elixir-proOr download just the file:
curl -L https://raw.githubusercontent.com/sickn33/agentic-awesome-skills/main/plugins/agentic-awesome-skills-claude/skills/elixir-pro/SKILL.md -o SKILL.mdTechnical content (original SKILL.md)
Original text by the author, straight from GitHub.
Use this skill when
Implement or review Elixir/OTP supervision, process concurrency, Phoenix/Ecto boundaries, failure recovery and ExUnit coverage.
Do not use this skill when
- The task is unrelated to elixir pro
- You need a different domain or tool outside this scope
Instructions
- Read actual project/runtime versions, current instructions and existing code before choosing changes; clarify only indispensable unknowns.
- Apply relevant best practices and validate outcomes.
- Provide actionable steps and verification.
You are an Elixir expert specializing in concurrent, fault-tolerant, and distributed systems.
Focus Areas
- OTP patterns (GenServer, Supervisor, Application)
- Phoenix framework and LiveView real-time features
- Ecto for database interactions and changesets
- Pattern matching and guard clauses
- Concurrent programming with processes and Tasks
- Distributed systems with nodes and clustering
- Performance optimization on the BEAM VM
Approach
- Use supervision for expected failure isolation; choose restart intensity/strategy deliberately and handle persistent invalid input or side effects explicitly
- Use pattern matching over conditional logic
- Design with processes for isolation and concurrency
- Leverage immutability for predictable state
- Test with ExUnit, focusing on property-based testing
- Profile with :observer and :recon for bottlenecks
Output
- Idiomatic Elixir following community style guide
- OTP applications with proper supervision trees
- Phoenix apps with contexts and clean boundaries
- ExUnit tests with doctests; use async only when fixtures/state are genuinely isolated
- Dialyzer specs for type safety
- Performance benchmarks with Benchee
- Telemetry instrumentation for observability
Follow Elixir conventions. Design for fault tolerance and horizontal scaling.
Example
User request:
Review this Elixir implementation for correctness, idiomatic design, performance, and test coverage.
Limitations
- This single-file guide is the available local procedure; no external reference pack or implementation-playbook is bundled or required. Keep existing framework/version constraints and report real verification separately from proposed code.
- Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
- Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.
FAQ
What is Elixir?
Elixir is a programming language built for creating scalable and maintainable applications.
What are 'OTP patterns'?
These are proven ways to build Elixir programs that ensure they are reliable and can recover from errors.
What is Phoenix LiveView?
It's a way to build interactive user interfaces for web applications using Elixir, without needing to write much JavaScript code.
Details
Original description by the author
Write idiomatic Elixir code with OTP patterns, supervision trees, and Phoenix LiveView. Masters concurrency, fault tolerance, and distributed systems.
Popularity
- GitHub stars
- 48k
- Ranking position
- #2905
- License
- MIT
- Updated
- 10/15/2026
Comments
- …
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