Using webctl in Claude.ai Containers Browser automation using webctl CLI with automatic proxy authentication handling for Claude.ai's egress-controlled environment. When This Skill Applies - User requests browser automation, web scraping, or page interaction - webctl commands fail with - Playwright/Chromium needs to work through authenticated HTTP proxy Core Problem Claude.ai containers route traffic through an authenticated egress proxy ( env var with JWT credentials). Chromium doesn't properly handle proxy authentication for HTTPS CONNECT tunnels, causing all HTTPS navigation to fail even t…