6 used to be the max for me as well when I worked with Claude Code in terminal windows. Too little to hold on to and to discern the conversations. Just walls of text.

I can now go 20+ with fun because

1. I built a canvas for organizing the work spatially, so every feature has its place,

2. I condensed sessions to a WhatsApp style chat with detailed agent steps available but folded away by default, and

3. Each feature agent ends with a demo, usually a narrated video that I can watch and comment on by voice as it runs.

(My solution is available open source and free: obeya.si)