[Bug] Plugin not visible to Claude despite being visible with /plugins command with --plugin-dir flag

Bug Description
I created a new skill, I'm testing it locally with --plugin-dir parameter and Claude can't see the skill even though It's visible in /plugins -> installed

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.0.73
• Feedback ID: aedb58a1-551b-476b-ac47-bcd475e069f7

Errors

[{"error":"Error: Request was aborted.\n    at _createMessage (/$bunfs/root/claude:447:3157)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-12-19T13:34:15.442Z"}]

The "plex" skill is clearly visible in the /plugin command output
<img width="529" height="272" alt="Image" src="https://github.com/user-attachments/assets/2e842ec2-c1e3-486d-93b9-4329707b29cc" />

When I asked Claude, this was the response:

You're right to point that out! Looking at my available skills list (which is provided to me at the start of each conversation), I don't see the "plex" inline skill in my <available_skills> section. The inline skill you added via command line switch exists in your system, but it appears it's not being passed into my context. I can only see and use skills that are listed in my available skills, which currently includes: - Your custom user skills (fix-github-issue, initialise, fix-build, plan-github-issue, health) - The plugin-dev skills - The example-skills from anthropic-agent-skills But no "plex" skill.