[BUG] Slash command autocomplete popup only triggers for the first command

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 typing slash commands in the interactive prompt, typing the first slash command (e.g., /grill-me) properly triggers the command/skill selection menu. However, typing a space and then a second slash command (e.g., /feature-dev) on the same line does not trigger the autocomplete/selection menu popup.

What Should Happen?

The skill/slash-command suggestion dropdown should trigger whenever / is typed following whitespace, allowing users to chain or reference multiple commands/skills in a single prompt.

Error Messages/Logs

Steps to Reproduce

1. Launch Claude Code CLI.
2. Type /skill-1 in the prompt (autocomplete menu displays as expected for the first command).
3. Type a second slash command on the same input line: /skill-2.
4. Observe the autocomplete/selection popup behavior.

Claude Model

_No response_

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.266

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_