[BUG] Skill(artifact-design) is not working

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

When I prompt claude to make a diagram, it loads and tries to use the skill, but never returns:

❯ explain how ingress nginx works in kubernetes - start with a diagram

⏺ Skill(artifact-design)
Successfully loaded skill

✻ Embellishing… (3m 9s · ↓ 123 tokens · almost done thinking)

What Should Happen?

claude should be able to generate diagrams in less than a minute.

Error Messages/Logs

Steps to Reproduce

1. prompt claude to make a diagram

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.220 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Other

Additional Information

_No response_