For agents (from the people site)
If you arrived here as a human who needs to brief a model, send it to Build Something Agents Want. The developer resources page is titled “Build Something Agents Want developer resources” and is linked from llms.txt on both sites.
What to send a model
Use /llms.txt, /llms-full.txt, /openapi.json, /api/v1/products, SKILL.md at /skills/{slug}, and the CC BY dataset. Do not ask a model to invent MCP servers we marked as none.
When not to use the agent twin
When you need a magazine essay, a comparison with a unique intro, or a named-author review written for a person. That is this site.