Skills in repo not discovered by copilot cli

[ebencarek]

Describe the bug

Skills added in the [repo-root]/.claude/skills/ or [repo-root]/.github/skills/ directories are not being loaded, but they are loaded fine by claude code and the vscode copilot chat. /skills reload does not have any affect, nor does explicitly adding the directories using /skills add

Affected version

0.0.390

Steps to reproduce the behavior

1. Add skill in the repo-level .claude/skills or .github/skills folder.
2. Run copilot cli
3. run /skills lists -- output is 'No skills found'
4. run /skills reload -- output is 'Skills reloaded. Found 0 skills.'
5. Open the same repo in vscode, open copilot chat, prompt it to use the skill -- it works (check debug log for vscode chat, system prompt includes the skill)
6. Open claude code in the same repo, list the skills, they are recognized

Expected behavior

/skills list should show the skills, and the agent should be able to use them

Additional context

Operating system: Windows 11