Phx
Elixir/Phoenix/LiveView development with specialist agents, Iron Laws, and Tidewave MCP integration
- Type
- Plugin
- Repository
- oliver-kriska/claude-elixir-phoenix
- GitHub stars
- 556
- License
- MIT
- Repo last updated
- Sep 25, 2026
- Version
- 3.1.0
- Author
- Oliver Kriska
What Phx is
Phx is a plugin published in the oliver-kriska/claude-elixir-phoenix repository on GitHub, which has about 556 stars. The repository describes itself as: “Claude Code plugin for Elixir/Phoenix/LiveView — 26 specialist agents, Iron Laws enforcement, and Tidewave MCP integration. Plan features with parallel research agents, execute with automatic verification, review with 4-agent parallel audits, and capture learnings as reusable knowledge.”
A plugin is a package that bundles skills, slash commands, subagents, hooks, and MCP connectors so they install together. Plugins are plain files with a manifest at .claude-plugin/plugin.json, and they work in both Claude Code and Claude Cowork.
Installing Phx adds everything it ships in one step. Connectors inside a plugin still need to be connected separately, and hooks and subagents only run in Cowork and Claude Code, not in regular chat.
How to install Phx
Claude Code
- Add the repository as a plugin marketplace: claude plugin marketplace add oliver-kriska/claude-elixir-phoenix
- Install the plugin: claude plugin install phx@<marketplace-name>, using the marketplace name from the repository's .claude-plugin/marketplace.json.
- Restart the session if the new skills or commands don't appear straight away.
Claude Cowork
- Open Customize → Plugins and choose Add marketplace.
- Enter oliver-kriska/claude-elixir-phoenix (the owner/repo shorthand works for GitHub).
- Find Phx in the list, click Install, then connect any connectors it needs from its Connectors tab.
New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.
Inside the source file
We couldn't retrieve the source file for this entry. Browse the repository on GitHub to find it and read the README before installing.
Before you install
- Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
- Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
- Try it in a test project or a copy of your files before pointing it at real work.
- Pin the version you tested, and review changes before updating.
- Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.
FAQ
What is Phx?
Phx is a plugin for Claude Code and Claude Cowork from the oliver-kriska/claude-elixir-phoenix repository on GitHub. Elixir/Phoenix/LiveView development with specialist agents, Iron Laws, and Tidewave MCP integration
How do I install Phx in Claude Code?
Add the repository as a plugin marketplace: claude plugin marketplace add oliver-kriska/claude-elixir-phoenix Install the plugin: claude plugin install phx@<marketplace-name>, using the marketplace name from the repository's .claude-plugin/marketplace.json. Restart the session if the new skills or commands don't appear straight away.
Can I use Phx in Claude Cowork?
Open Customize → Plugins and choose Add marketplace. Enter oliver-kriska/claude-elixir-phoenix (the owner/repo shorthand works for GitHub). Find Phx in the list, click Install, then connect any connectors it needs from its Connectors tab.
Is Phx safe to install?
It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.
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