[DOCS] VS Code docs omit `/extra-usage` command now supported in extension sessions

Documentation Type

Incorrect/outdated documentation

Documentation Location

https://code.claude.com/docs/en/vs-code

https://code.claude.com/docs/en/interactive-mode

Section/Topic

VS Code command menu coverage and slash command reference for usage-related commands.

Current Documentation

The VS Code docs describe command menu options and currently mention:

Options include attaching files, switching models, toggling extended thinking, and viewing plan usage (/usage).

The interactive slash command table currently lists:

| /usage | For subscription plans only: show plan usage limits and rate limit status |

No /extra-usage command entry appears in these docs.

What's Wrong or Missing?

Claude Code v2.1.50 added /extra-usage command support in VS Code sessions, but current docs still only reference /usage.

This makes the new VS Code capability undiscoverable and leaves command behavior differences unclear.

Suggested Improvement

Update VS Code and slash command docs to include /extra-usage:

• add command menu mention in VS Code docs,
• add a slash-command table entry (purpose, availability constraints),
• explain relationship/differences between /usage and /extra-usage in extension sessions.

Impact

Medium - Makes feature difficult to understand

Additional Context

Source: Claude Code release v2.1.50
Release entry: "VSCode: Added /extra-usage command support in VS Code sessions"

Affected Pages:
| Page | Line(s) | Context |
|------|---------|---------|
| https://code.claude.com/docs/en/vs-code | 85 | Command menu description mentions /usage but not /extra-usage |
| https://code.claude.com/docs/en/interactive-mode | 123 | Slash command table includes /usage only |

Total scope: 2 pages affected