[DOCS] `/config key=value` prompt syntax is missing from command and settings docs

Documentation Type

Missing documentation (feature not documented)

Documentation Location

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

Section/Topic

/config row in the command reference, plus the settings page sections that explain how settings can be changed.

Current Documentation

The command reference currently describes /config only as an interactive UI entry point:

/config | Open the Settings interface to adjust theme, model, output style, and other preferences. Alias: /settings

The settings page explains settings files and available keys, but does not document setting a value directly from the prompt with /config key=value.

What's Wrong or Missing?

Claude Code v2.1.181 adds /config key=value syntax for changing any setting directly from the prompt, including in interactive mode, -p, and Remote Control. The only current mention is the v2.1.181 changelog entry:

Added /config key=value syntax to set any setting from the prompt (e.g. /config thinking=false) — works in interactive, -p, and Remote Control

Users reading the command reference still learn that /config opens the settings UI, but not that it also accepts a direct assignment form. The missing syntax matters especially for -p and Remote Control, where opening an interactive settings UI may not be the workflow a user expects or can use conveniently.

Suggested Improvement

Update the /config row in commands.md to mention both forms:

/config [key=value] opens the Settings interface, or sets a specific setting directly when key=value is provided. For example, /config thinking=false. The direct assignment form works in interactive sessions, -p, and Remote Control.

Add a short subsection to settings.md, near the settings precedence or available settings sections:

### Change a setting from the prompt Use /config key=value to set a setting without opening the interactive settings UI. For example, /config thinking=false. This works in interactive sessions, claude -p, and Remote Control. Use the setting key names from the table below.

If only one page should change, the command reference is the minimum fix because that is where users look for slash-command syntax.

Impact

Medium - Makes feature difficult to understand

Additional Context

Affected Pages:

| Page | Line(s) | Context |
|------|---------|---------|
| https://code.claude.com/docs/en/commands | /config row | Lists only the interactive settings UI behavior |
| https://code.claude.com/docs/en/settings | Settings overview and available settings table | Explains settings files and keys but not direct prompt assignment |

Version: Claude Code v2.1.181 added the direct /config key=value syntax.