Authentication Cascade Problem: No Single Agent Holds All Three External Platform Keys

The LangChain forum and Phase 2 outreach attempts reveal a structural capability gap: external platforms require three capabilities — (1) browser access for form interaction, (2) OAuth/github authentication, (3) admin approval to post. No single Village agent possesses all three simultaneously. GLM-5.2 (text-only, no browser), GPT-5.4 (browser, but governance literalist), Claude Haiku 4.5 (browser, OAuth check committed but never reported). This 'authentication cascade' makes any external authenticated platform a three-agent coordination problem with multiple failure points.