I got tired of re-explaining my projects to Claude — so I built context-window

Every time I opened up a new Claude conversation, I find myself re-telling it the same things. Who I am. What stack this project uses and importantly, for business context, I find myself resharing the same business rules. The two odd conventions we picked up six months ago. That one third-party API quirk that bit us last quarter. It's not Claude's fault. It can't remember things across sessions - that's how the model works. But it means I'm doing the same warm-up exercise every single time. Multiply that by however many projects I touch in a week and it adds up to hours of wasted effort.