Open-Source Security, Cedar Copilot, Anthropic Billing Changes & Notion Dev Platform

This week on Agents Hour, Ismail Paliseyed joins Security Corner for an OSS security discussion, and Isabelle stops by to show off Cedar Copilot. Plus the news: Anthropic's latest acquisition and billing changes, Claude for Small Business, and Notion's new Developer Platform. Agents Hour is Mastra's weekly live show covering AI news, agent engineering, and conversations with builders shaping the ecosystem. 📚 MASTRA RESOURCES https://mastra.ai https://x.com/mastra_ai https://mastra.ai/community/discord https://github.com/mastra-ai https://mastra.ai/course https://mastra.ai/books/principles-of-building-ai-agents https://mastra.ai/books/patterns-of-building-ai-agents Mastra is an open-source TypeScript framework designed for building and shipping AI-powered applications and agents with minimal friction. It supports the full lifecycle of agent development — from prototype to production.