Elixir Agent Tools — Development skill for Claude Code

Elixir Agent Tools

Elixir development guidance for coding agents, with optional Mix checks and Expert language server integration.

Five skills covering language idioms, Phoenix interfaces, Ecto persistence, OTP processes, and Oban jobs. Install them with `npx skills`, then add optional plugins when you want automatic checks or code navigation.

**These skills are small on purpose. Every instruction must change the agent's behavior.** Modern coding agents already know the basics. Their context should go toward your code and your problem. We keep only guidance that changes a decision or prevents a demonstrated mistake. If the agent would do the same thing without an instruction, that instruction doesn't belong here.

Installation

Install all five skills with the [Skills CLI](https://github.com/vercel-labs/skills) and choose your agent when prompted. Works with Codex, Claude Code, OpenCode, and other supported agents:

npx skills add georgeguimaraes/elixir-agent-tools --skill '*'

Add `-g` to make the skills available across projects. Start a new session after installation. Mix checks and code navigation are [optional tools](#optional-tools) you can add later.

Alternative: native Claude Code or Codex plugin

Install the same five skills as a plugin. Choose this or `npx skills` to avoid duplicate skills.

Claude Code

claude plugin marketplace add georgeguimaraes/elixir-agent-tools
claude plugin install elixir-dev@elixir-agent-tools

Codex

codex plugin marketplace add georgeguimaraes/elixir-agent-tools
codex plugin add elixir-dev@elixir-agent-tools

Manual installation

For agents that discover skills under `~/.agents/skills`, clone this repository into a persistent location and link each skill:

git clone https://github.com/georgeguimaraes/elixir-agent-tools.git "$HOME/.local/share/elixir-agent-tools"
mkdir -p "$HOME/.agents/skills"
for sk