[DOCS] Fullscreen docs omit mouse hover/click behavior for slash command and @-mention suggestion lists

Documentation Type

Missing documentation (feature not documented)

Documentation Location

https://code.claude.com/docs/en/fullscreen

Section/Topic

Use the mouse in fullscreen rendering, plus the fullscreen interaction notes for slash command and @-mention suggestion lists

Current Documentation

The fullscreen page currently says:

Fullscreen rendering captures mouse events and handles them inside Claude Code: Click in the prompt input to position your cursor anywhere in the text you're typing. Click a collapsed tool result to expand it and see the full output. Click again to collapse. The tool call and its result expand together. Only messages that have more to show are clickable. Click a URL or file path to open it. Click and drag to select text anywhere in the conversation. * Scroll with the mouse wheel to move through the conversation.

Related input docs currently say:

Type / in Claude Code to see all available commands, or type / followed by any letters to filter.

| @ | File path mention | Trigger file path autocomplete |

@-mention the subagent. Type @ and pick the subagent from the typeahead, the same way you @-mention files.

What's Wrong or Missing?

A. The fullscreen mouse documentation omits suggestion-list interaction

The fullscreen page documents mouse support for the prompt, collapsed tool results, links, text selection, and wheel scrolling, but it does not mention that the slash command suggestion list and @-mention suggestion list support mouse hover and click in fullscreen mode as of v2.1.145.

B. The slash and @ docs describe discovery/filtering, but not fullscreen mouse behavior

The interactive-mode and sub-agents pages explain how to open the / and @ suggestion/typeahead UIs, but they only describe typing, filtering, and picking items conceptually. They do not tell readers that in fullscreen mode those suggestion lists are mouse-interactive, which makes the new behavior hard to discover.

Suggested Improvement

Add a bullet to https://code.claude.com/docs/en/fullscreen under Use the mouse, for example:

Hover and click autocomplete suggestions in slash command and @-mention menus. In fullscreen rendering, moving the mouse updates the highlighted suggestion, and clicking selects or inserts the highlighted command, file, or agent.

Also add a short note where / and @ suggestions are introduced that fullscreen mode supports mouse hover/click selection in addition to Tab and arrow-key navigation.

Impact

Medium - Makes feature difficult to understand

Additional Context

Affected Pages:

| Page | Line(s) | Context |
|------|---------|---------|
| https://code.claude.com/docs/en/fullscreen | 47-55 | Use the mouse lists fullscreen mouse actions but omits slash/@ suggestion-list hover and click |
| https://code.claude.com/docs/en/interactive-mode | 80-86, 107-109 | / and @ entry points are documented, but fullscreen mouse interaction is not |
| https://code.claude.com/docs/en/sub-agents | 637-645 | @-mention typeahead for agents is documented, but fullscreen hover/click behavior is not |

Total scope: 3 pages affected

Version: Observed against Claude Code release notes for v2.1.145