Elixir Expert

What it does

This Elixir expert skill provides specialized programming assistance within the Erlang/Elixir ecosystem. It helps agents write, debug, and optimize functional code specifically tailored to Phoenix frameworks and BEAM virtual machine constraints.

When to use it

• Developing backend services using the Phoenix framework or GenServer processes.
• Debugging concurrency issues specific to the Erlang VM (BEAM).
• Writing OTP-compliant libraries or applications requiring strict process supervision trees.
• Refactoring legacy Elixir codebases for better performance and maintainability.

Key capabilities

• Generates idiomatic Elixir syntax adhering to functional programming principles.
• Implements complex logic using GenServers, Agents, and Task processes.
• Debugs runtime errors common in distributed Erlang systems.
• Optimizes code for the BEAM virtual machine's garbage collection and scheduling.

Example prompts

• "Create a GenServer to manage user sessions with automatic timeout handling."
• "Debug this Phoenix LiveView component that is causing a race condition on page load."
• "Refactor this list of functions into a recursive implementation using tail recursion optimization."

Tips & gotchas

Ensure your agent understands the distinction between standard Elixir and OTP-specific behaviors, as generic functional advice may not apply to distributed systems. Always verify that generated code adheres to strict naming conventions required by the Erlang runtime environment.