The context problem nobody talks about: why AI coding agents waste 80% of tokens on files they already read yesterday

Every AI coding agent — Claude Code, Cursor, Codex, Gemini CLI — starts every session completely blind. It doesn't know your projects. It doesn't know your servers. It doesn't remember that you spent three hours yesterday debugging the payment system. So it greps. It reads file after file. It SSHs into your server to check what's running. It asks you "which project?" for the hundredth time. By the time it's oriented, you've burned half your context window on reconnaissance. I manage 15 projects