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... https://mastra.ai/books/patterns-of-b... 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.

Claude Code Head Boris Cherny: Insane Growth, Tokenmaxxing, AI Agents' Next Frontier
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Claude Code Head Boris Cherny: Insane Growth, Tokenmaxxing, AI Agents' Next Frontier

Zig 2026: No-AI Policy, $670K Foundation, Left GitHub & Why Zig Isn’t 1.0 - Andrew Kelley Explains
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Zig 2026: No-AI Policy, $670K Foundation, Left GitHub & Why Zig Isn’t 1.0 - Andrew Kelley Explains

Conan O’Brien Delivers the Commencement Address | Harvard Commencement 2026
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Conan O’Brien Delivers the Commencement Address | Harvard Commencement 2026

Anthropic's Boris Cherny: Why Coding Is Solved, and What Comes Next
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Anthropic's Boris Cherny: Why Coding Is Solved, and What Comes Next

Google CEO: Agents, Open Source, Race to AGI, Cybersecurity, Chips, China
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Google CEO: Agents, Open Source, Race to AGI, Cybersecurity, Chips, China

Opus 4.7 and OpenAI 5.5 Made Your Prompting Style Obsolete.
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Opus 4.7 and OpenAI 5.5 Made Your Prompting Style Obsolete.

AI Whistleblower: They're Hiding the Truth About AI!
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AI Whistleblower: They're Hiding the Truth About AI!

Andrej Karpathy: From Vibe Coding to Agentic Engineering w/ Stephanie Zhan
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Andrej Karpathy: From Vibe Coding to Agentic Engineering w/ Stephanie Zhan

Why This Dev Ships 100x Faster Than 99% of Engineers
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Why This Dev Ships 100x Faster Than 99% of Engineers

Fatty Liver Expert: The Toxic Ingredient Silently Filling Your Liver With Fat - Dr David Unwin
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Fatty Liver Expert: The Toxic Ingredient Silently Filling Your Liver With Fat - Dr David Unwin

Harnesses in AI: A Deep Dive — Tejas Kumar, IBM
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Harnesses in AI: A Deep Dive — Tejas Kumar, IBM

How Cheap AI Could Derail OpenAI And Anthropic's IPOs
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How Cheap AI Could Derail OpenAI And Anthropic's IPOs

Pinecone Just Demoted Vector Search. Here's the Knowledge Layer.
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Pinecone Just Demoted Vector Search. Here's the Knowledge Layer.

Inside YC's AI Playbook
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Inside YC's AI Playbook

The Agent Development Lifecycle: Build, Test, Deploy, Monitor | Interrupt 26
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The Agent Development Lifecycle: Build, Test, Deploy, Monitor | Interrupt 26

Andrej Karpathy's Wiki Idea Was Just Shipped by Pinecone
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Andrej Karpathy's Wiki Idea Was Just Shipped by Pinecone

Hermes Agent is the greatest AI tool ever made. Here's how to set it up
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Hermes Agent is the greatest AI tool ever made. Here's how to set it up

How Anthropic Engineers ACTUALLY Prompt Claude Code
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How Anthropic Engineers ACTUALLY Prompt Claude Code

Anthropic Bought Stainless and Repriced the Agent SDK, while Notion Went Dev - This Week In AI
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Anthropic Bought Stainless and Repriced the Agent SDK, while Notion Went Dev - This Week In AI

Anthropic Workshop: Build Agents That Run for Hours — Ash Prabaker & Andrew Wilson
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Anthropic Workshop: Build Agents That Run for Hours — Ash Prabaker & Andrew Wilson