Safe Browser Build a local browser-agent demo where the generated runtime agent has exactly one browser capability: . The tool owns the Playwright/CDP session, enables interception for all requests, and fails any request whose host is not allowlisted. This skill is a builder guide. The skill itself is not the runtime boundary; the generated Claude Agent SDK app is. When to Use - The user asks for a browser agent that must stay on an allowlisted site. - The user wants to demonstrate prompt-injection or link-following containment. - The user asks to build a scraper or browser workflow with doma…