AI is changing how developers work, but the people getting the most out of it rarely share what they run. The Builder Index is a public board of real builders: connect Claude and Codex, track token usage, and surface the skills, tools, and projects; You’ll see people like Jesse Vincent (Superpowers), Naveen (Foursquare), Wes McKinney (Pandas / Arrow) The point isn’t who spends the most. It’s making the best AI setups visible so the whole community can improve.