Graph vs. Loop: Not a Fight, Two Different Layers

Sat, 08 Aug 2026 00:00:00 +0000

A “graph engineering just changed how AI agents work — goodbye loops” post landed in my feed, and my first reaction was suspicion of the useful kind: wait, is this different from the orchestrator/planner/coder/reviewer setup I already wrote about in the harness cheat sheet?

Short answer: it’s not a competing architecture. It’s a different layer.

Orchestrator–worker (planner, coder, reviewer) answers who does the work — the role topology.
Graph engineering answers how control and state move between them — the execution model.

You can run planner/coder/reviewer as an unconstrained loop, or as a graph. Same cast, different wiring. Nobody has to lose.

Orchestration on the art of simplicity

Graph vs. Loop: Not a Fight, Two Different Layers