LOOPS VS GRAPHS: THE ONE DISTINCTION THAT GETS YOU PROMOTED IN 2026
ask ten engineers running Claude which one they're using.
eight won't know. that's the gap.
> loop - you set the frame, the agent finds the path. best when nobody knows the route yet
> graph - you draw the path, the agent fills each node. best when it's the same job every day
loops flex. you can't test them.
graphs test clean. but the map has to exist first.
skip the company brain - tickets, policy, docs - and the agent relearns your business every run
Fable 5 for the messy loop.
Opus 4.8 for the daily graph - frontier tier, cheaper, runs all day.
freeze a loop into a graph the second it stops surprising you
say that once in a planning meeting and you've stopped doing tickets. you're designing the system
which one is your setup actually running on?
Anthropic engineer: "at Anthropic, we don't write prompts anymore. we build loops"
in 42 minutes, she shows how the Claude team creates loops that prompt themselves
if this cost $400, people would call it the best agents course of the year
it's free
watch it, and Bookmark.
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