agent-browser-shield-site-rules

How to add a new host to extension/data/sites/*.yaml using the Playwright MCP — per-rule extraction recipe, selector signal hierarchy, false-positive checks, validation, and one-PR-per-host workflow. Use when the user wants to extend site coverage for reviews-redact, comments-redact, footer-redact, or search-url-helper, or when extracting/refreshing selectors for an existing host.