domains / families / agent-tooling / webmcp

webmcp

separate

Open a user-provided URL in the host's built-in browser and use the page's MCP or WebMCP tools before browser UI automation for app communication or edits.

When to use

• Open a web app in the host's built-in browser
• Use page's MCP or WebMCP tools
• Complete requests through page tools
• Navigate and inspect visually
• Handle sign-in prompts
• Execute tool calls via document.modelContext

When not to use

• External Chrome window
• Normal tab
• Browser extension
• Click, type, drag, or screenshot for tool-capable operations
• DOM automation for tool-capable operations
• Enter, copy, inspect, or request passwords, cookies, tokens, or verification codes
• Substitute generic tool-search or remote API for current tab's page tools
• Copy tool descriptors out of the page to invoke from host

Skill page

Source