Stefan Jansen
Free Lesson

Why Multi-Agent Systems Break, and How To Fix It

30 min
Nov 4, 2026 12:00 PM

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What you'll learn

See the failure modes a single agent doesn't have

Watch two independent runs land on different numbers, and see why that spread carries information a single run hides.

Bound what each agent is allowed to do

Learn how narrowing each agent's job makes the whole system easier to trust and cheaper to debug.

Check results before the system acts on them

See the verification the harness runs between steps, so one bad answer doesn't propagate through the system.

Why this topic matters

A multi-agent system has more ways to fail than a single call: agents drift off task, errors compound across steps, and independent runs disagree. The fix is engineering, not better prompts. This lesson covers where they break and the harness patterns that keep them reliable, from bounding each agent's job to checking results before they act, using the system built in the workshop.

You'll learn from

Stefan Jansen

Stefan Jansen

Author, ML for Trading · Founder, Applied AI · Investing since 2013

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