Get started
Claude Code (via the JUXT plugin marketplace)
/plugin marketplace add juxt/claude-plugins
/plugin install allium
Cursor, Windsurf, Copilot, Aider, Continue and 40+ other tools
npx skills add juxt/allium
Once installed, your LLM will load the skill when it encounters .allium files or when you mention Allium in conversation.
Manual installation
Allium is just markdown files. If your tool isn’t listed above, or you prefer to manage things yourself, grab the files from the GitHub repository and place them wherever your LLM reads custom instructions from.
Using Allium
In Claude Code, type /allium and Allium takes it from there.
> /allium
✻ I can see you have an existing codebase with authentication, billing and a team management module, but no Allium spec yet. I can distill from code to capture what your implementation currently does, or start from intent to build a spec through conversation. Which would you prefer?
Allium determines whether to distill from existing code or build a new spec based on your project and what you ask for. See the usage examples for what happens next.