This TLDR issue explains WorkOS’s new auth.md protocol for AI agents to discover and register with services. It details SpaceX’s AI1 orbital data-center satellite plans and Anthropic’s Claude Fable 5 model specs and pricing. The newsletter also covers NASA’s Artemis 3 prep, China’s underwater wind-powered datacenter, and Apple’s consumer AI strategy.

• WorkOS's auth.md protocol lets AI agents self-register with services via a machine-readable Markdown file, skipping human sign-up flows.
• SpaceX plans to deploy up to a million orbital data-center satellite nodes, starting with AI1: a 70m, 150kW compute satellite at 600km altitude.
• Claude Fable 5 matches Mythos 5's performance but with stricter guardrails, a 1M-token context window, and pricing of $10/$50 per million input/output tokens.
• China launched the first wind-powered undersea data center (24MW, 10m deep) off Shanghai, using seawater for passive cooling.