Open-source coding-agent harness you can actually change — own the loop (prompts, gates, routing, skills, terminal states), use any model, run long tasks while you're away.

The most expensive bug in AI-assisted building is shipping the wrong thing, well. A CLAUDE.md for PM + eng teams using Claude Code- 7 principles for problem framing, scope, tradeoffs, and outcome measurement. Built on @karpathy's observations.

Whatshell: a Rust WhatsApp Web CLI for coding agents

Manage and switch between multiple Claude Code (and other AI coding tool) profiles/accounts locally — isolated config dirs, per-account email, one-command switching.