Proof reimagines document editing by prioritizing agent-native design: AI agents join documents as first-class collaborators, with visual provenance (purple for AI, green for human) and no login required. The team demonstrates live agent integration—like Codex drafting plans and Claw R2-C2 reviewing them—highlighting lightweight, iterative workflows over rigid documentation. Users leverage Proof for creative writing, task tracking, and technical documentation, often preferring it to heavier tools like Notion due to its speed and focus on real-time co-creation. The podcast examines practical challenges—such as coordinating multiple agents in one doc—and introduces the idea that some AI-generated content is optimized for agent consumption rather than human reading. Open-sourcing Proof invites builders to extend and embed it, reinforcing its role as infrastructure for the emerging era of agent-augmented work.