[skill-gap]: no new commands after install

### Affected skill

other / not sure

### Relevant instruction or excerpt

I installed all skills with command `npx skills add addyosmani/agent-skills`.

### Project context

I'm using github copilot in vscode.

### What did not work or did not apply

I can't find any commands in my agent, such as: `/spec`, `/plan`, `/build`, `/test`.

### What you did instead

_No response_