Technical Docs
Elixir
Write, review, explain, and update Elixir code using current Elixir 1.19 and official ecosystem APIs. Use when Codex needs up-to-date guidance for Elixir syntax, stdlib, Mix, ExUnit, IEx, Hex and package workflows, OTP/BEAM behaviours, Phoenix, LiveView, HEEx, Plug, Ecto, Phoenix.HTML, Phoenix.PubSub, telemetry, Bandit, LiveDashboard, Expert LSP, or other current core Elixir and Phoenix libraries, and when older Elixir advice may be stale.