One folder per building, updated by your AI after every call or meeting. Before the next one, ask what is still open. Works for anyone with many similar clients.
Each building has its lift contractor, March's leak, what the last meeting decided, who hasn't paid. An AI could help, but in a new chat it remembers none of it.
Your AIs share nothing with each other: every chat and every assistant starts from zero. Cobrain is the memory they all connect to, plain Markdown notes that Claude, ChatGPT, Claude Code or Cursor read and write.
buildings/via-roma-12/open.md
- Lift: quote from contractor B, waiting.
- Roof leak: fixed 14 March.
- Flat 4: two instalments overdue.Free if you work alone (1,000 notes). Pro if two or three of you write in the same brain.
It is free and no card is needed. You sign in with a link sent by email, connect your AI and start building a memory that does not stay locked inside a chat.