A trustee stack is a control system
Legal term: agent stack. Plain English: a team of narrow-purpose software workers, each with a limited job.
That sounds technical, but the core idea is simple. A trustee should not rely on one general chatbot to read trust papers, interpret law, track deadlines, draft memos, answer beneficiaries, and push actions into live systems. That is too much power in one place, and it blurs accountability.
A proper trustee agent stack does the opposite. It separates jobs, limits authority, requires approvals, and leaves a record. In trustee work, that matters because the office is fiduciary. The trustee may delegate some functions. The trustee does not delegate away the office itself.
Common mistake
One model, one chat, no lanes
The system answers everything from memory, mixes law with habit, drafts without citations, and moves too close to real action. It feels efficient right up to the moment it misses a clause, a deadline, or a conflict.
Better design
Separate the jobs, log the steps
The system reads, retrieves, drafts, checks, and escalates in stages. The workflow engine decides what happens next. Human review sits at the points where fiduciary judgment, legal uncertainty, or money movement begins.

