[DOCS] Remove outdated references to MCP server @-mentions for toggling status

Documentation Type

Missing documentation (feature not documented)

Documentation Location

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

Section/Topic

• MCP server management and Quick commands sections.

Current Documentation

The documentation at https://code.claude.com/docs/en/mcp currently includes the instruction:

"Enable/disable MCP servers by @mentioning, or in /mcp."

Additionally, older sections of the feature documentation may still suggest that @-mentioning an MCP server is a valid way to toggle its enabled/disabled state.

What's Wrong or Missing?

According to the Claude Code Changelog for version 2.1.6:

"Removed ability to @-mention MCP servers to enable/disable — use /mcp enable <name> instead."

The existing documentation encourages a workflow that has been explicitly removed from the product, leading to user confusion when the @-mention UI only shows file suggestions or resources rather than server toggles.

Suggested Improvement

Update all references to MCP server management to reflect the new command-based workflow.

Suggested text for https://code.claude.com/docs/en/mcp:**
"Manage your MCP servers using the following commands:

• /mcp: Open the interactive management menu.
• /mcp enable <name>: Enable a specific server.
• /mcp disable <name>: Disable a specific server.
• Note: @-mentioning servers to toggle status is no longer supported."

Suggested update for https://code.claude.com/docs/en/interactive-mode:**
Ensure the @ symbol is only described as a trigger for file, directory, or resource mentions, removing any mention of server status toggling.

Impact

High - Prevents users from using a feature

Additional Context

• Changelog Reference: Version 2.1.6 (found at https://code.claude.com/docs/en/changelog or the repository's CHANGELOG.md).
• Rationale: Standardizing server management into the /mcp namespace reduces accidental triggers in the main input field and matches the behavior described in the most recent updates.
• Related documentation for resource mentions (which still uses @) can be found at https://code.claude.com/docs/en/mcp#use-mcp-resources.