Agentic Patterns Lab
Workflows · agents · subagents

How LLM systems loop, branch and delegate

Seven common agentic patterns, each run as a step-by-step simulation. Press Play to watch messages move between models, tools and subagents. Change the settings to send the run down a different path, and watch the trace and each model's context grow. No real model is called; every run is scripted.

Input / output LLM call Subagent Tool Environment Plain code / gate
0 / 0

Trace

0LLM calls
0Tool calls
0Sequential steps

    Context windows

    How it works

    Use it when

    Watch out for

    Side by side

    PatternShape of the pathWho picks the next stepCost and latencyGood fit