[BUG] Marketplaces > Browse Plugins: spacebar toggle does not work

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 installing plugins from a custom marketplace (not Discover), the spacebar toggle does not function. Pressing spacebar on a highlighted plugin has no effect—the green plugin name with checkmark does not change state.

Important: Spacebar toggle works correctly in the main Discover tab. This bug is specific to the Marketplaces > Browse Plugins flow.

What Should Happen?

Pressing spacebar on a highlighted plugin should toggle its install state (checkmark on/off), consistent with behavior in the Discover tab.

Error Messages/Logs

No error messages. Spacebar keypress is silently ignored—no visual feedback, no state change.

Steps to Reproduce

1. Run claude in terminal
2. Type /plugin
3. Tab to Marketplaces
4. Select a marketplace that has plugins available
5. Select Browse Plugins
6. In the plugin list, highlight a plugin using arrow keys
7. Press spacebar to toggle install state
8. Expected: Checkmark toggles on/off
9. Actual: Nothing happens—plugin state unchanged

Verification: Return to Discover tab and test spacebar toggle there—it works correctly.

Claude Model

Opus 4.5

Is this a regression?

Unknown

Last Working Version

N/A

Claude Code Version

2.1.12

Platform

Claude Max

Operating System

macOS (Darwin 25.2.0)

Terminal/Shell

Ghostty / zsh

Additional Information

This appears to be part of a broader issue with the Marketplaces browse UI having incomplete keyboard event handling. Related issues being filed separately:

• Navigation incorrectly resets to Discover tab when pressing Enter for details
• Marketplace removal does not persist after restart

Suggests the Marketplaces browse view may be missing the keyboard event handlers that exist in the Discover view.