- Source: anthropics/claude-plugins-official - Modern API guidance (CheckoutSessions over Charges) - Frontend integration priorities - Subscription/billing best practices - Added Firefrost/Arbiter context - Updated SKILLS-INDEX.md Chronicler #73
- Source: anthropics/claude-plugins-official - Modern API guidance (CheckoutSessions over Charges) - Frontend integration priorities - Subscription/billing best practices - Added Firefrost/Arbiter context - Updated SKILLS-INDEX.md Chronicler #73