Add MCP browser tools requirement to web-browser plugin

Note that the plugin requires MCP browser tools, which are included
in the Cursor desktop app or can be installed as a separate MCP server.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: ericzakariasson

web-browser/README.md

@@ -2,6 +2,10 @@
 
 Browser debugging: DevTools, network traces, and reproducible bug reports.
 
+## Requirements
+
+This plugin requires MCP browser tools (`browser_navigate`, `browser_snapshot`, `browser_network_requests`, etc.). These are included automatically in the Cursor desktop app. If you're using Cursor outside the desktop app, you'll need to install a browser MCP server separately.
+
 ## Installation
 
 ```bash

web-browser/agents/browser-debugger.md

@@ -6,7 +6,7 @@ model: fast
 
 # Browser debugger
 
-Browser debugging specialist using MCP browser tools for navigation, snapshots, and network traces.
+Browser debugging specialist using MCP browser tools for navigation, snapshots, and network traces. Requires MCP browser tools (included in the Cursor desktop app, or install a browser MCP server separately).
 
 ## Trigger