Jev in practice: typed decisions, scoped authority

Building safe agent delegation with Jev, LangGraph, and Tenuo

TL;DR: safe-upgrade is a dependency upgrade agent built on Jev, LangGraph, and Tenuo. Jev turns repository evidence into typed probabilistic decisions. LangGraph carries those decisions through a durable workflow. Tenuo gives each resulting action a task-scoped warrant. The design rule: keep judgment, control flow, and authority separate.

We started with a builder’s question: what does a useful workflow look like when Jev, LangGraph, and Tenuo each address a distinct part of the system?