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Visual Walkthrough · Agents

Rent or Build the Agent Loop

Follow run 553 as it's built by hand and then rented, then check yourself with 8 questions. Run 553, its code and logs are examples we wrote; vendor facts link to their docs, checked Nov 9, 2026.

1Visual Walkthrough

An agent run's path: your app, the agent loop, the model, session store, sandbox, your tools and the payments API A strip showing where run 553 is at each step. Below it, the artifact pane shows the code, logs and vendor statements for that step. your app starts run 553 agent loop picks the next step model tokens in and out session store every turn so far sandbox runs its code your tools lookup, refund payments API real money moves

    2Quiz to check understanding

    Check yourself