Using skills does not find the script it needs in the skills directory

Question

### What version of Codex is running?

codex-cli 0.76.0

### What subscription do you have?

Pro

### Which model were you using?

_No response_

### What platform is your computer?

_No response_

### What issue are you seeing?

Using `gh-address-comments` will sometimes find the the script it needs in the right folder and sometimes return:

> I couldn’t find scripts/fetch_comments.py in this repo, so I pulled PR comments directly with gh api.

### What steps can reproduce the bug?

Uploaded th