[BUG] claude.ai Skills panel — edits to skill files not synced to /mnt/skills/user/ in active sessions

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 editing a personal skill file in the claude.ai Skills panel (e.g. assets/master_cv.md), the changes are not reflected in the mounted filesystem at /mnt/skills/user/[skill-name]/ during Claude sessions. Claude reads the old cached version even after closing and reopening the conversation.

What Should Happen?

Edits made in the Skills panel UI should be reflected on disk at /mnt/skills/user/ so Claude can read the latest version.

Error Messages/Logs

Steps to Reproduce

Steps to reproduce

Create a personal skill in the claude.ai Skills panel with a file (e.g. assets/master_cv.md)
Edit the file content in the Skills panel UI
Start a new Claude session (or close and reopen)
Ask Claude to read the file from /mnt/skills/user/[skill-name]/assets/master_cv.md
Claude reads the original version, not the updated one

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.128 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

Actual behavior
The mounted path returns the original file from when the skill was first created. The UI and the filesystem are out of sync.
Workaround
Renaming the skill forces a fresh load and the updated content becomes readable. This confirms the issue is a caching/sync problem, not a permanent filesystem issue.