Prerequisites
npx evals does all of this for you: it installs the CLI, authenticates, and selects your space. If you already have the AX CLI, ax instrument runs the same setup. Work through the steps below if you would rather set it up by hand.-
AX CLI:
-
Authentication — set up your API key using one of these methods:
- ax profile (recommended)
- .env file
- Environment variables
-
Space —
ARIZE_SPACEaccepts a space name (e.g.my-workspace) or base64 ID. Find yours withax spaces listor from the Arize URL (/spaces/{SPACE_ID}/...). -
Verify:
Install Skills
Option 1: npx (recommended)ax installed (v0.9.0+):
ax skills reference for every flag.
Option 3: Claude Code plugin
- macOS / Linux
- Windows (PowerShell)
ax CLI. Use --global / -Global to install to ~/.<agent>/skills/. Run --list to see available skills, --uninstall to remove them.
Updating skills: npx skills update or cd arize-skills && git pull.