Feature Request: Auto-complete for skill slash commands

Feature Request

Is your feature request related to a problem?

When typing a slash command (e.g., /pull-request-to-main) in Claude Code CLI, there is no auto-completion/suggestion as you type. You must type the full skill name exactly. This is in contrast to Cursor, which offers auto-completion for slash commands as you type.

Describe the solution you'd like

Auto-complete suggestions for skill names as the user types a / command, similar to how Cursor handles it. For example, typing /pull- should show matching skills like pull-request-to-main and pull-request-to-staging as selectable suggestions.

Describe alternatives you've considered

Currently the only option is to type the full skill name exactly, which is error-prone and slower, especially with longer skill names.

Additional context

Skills can be installed at multiple levels (personal ~/.claude/skills/, project .claude/skills/, etc.), so auto-completion should aggregate from all loaded skill sources.