Browser Agent / Playwright MCP Wiki

Browser visibility

Detect whether the agent sees pixels, DOM, accessibility tree, network, console, or nothing.

CDP and real Chrome sessions

Compare extension mode, local CDP endpoints, remote Browser Rendering, and shared browser handles.

Auth, MFA, captcha, and sessions

Know when to use user-owned browser sessions instead of disposable headless browsers.

Token-efficient page snapshots

Reduce DOM and accessibility-tree bloat before feeding page state to an agent.

Traffic entry pages and tools

• /tools/browser-agent-debug-checklist/ →
• /wiki/errors/playwright-mcp-browser-closed/ →
• /wiki/errors/chrome-devtools-mcp-cdp-endpoint-failed/ →

Sources

• https://developer.chrome.com/docs/devtools/agents ↗
• https://playwright.dev/mcp/configuration/browser-extension ↗