Same topic, related formats. Practice these next.
Multi-agent systems pay a coordination tax: routing tasks to the right agent, keeping shared state consistent, and message passing between agents, all of which a single sequential agent avoids.
Imagine one chef cooking a whole meal alone. The chef remembers exactly what is in every pot, so nothing gets out of sync. Now imagine a team of chefs sharing one kitchen. Someone has to decide who chops, who fries, and who plates. The chefs must shout updates to each other so nobody salts the soup twice. If one chef mishears another, the dish is ruined. The team can cook faster when tasks are truly independent, but they spend real effort just staying coordinated. Multi-agent systems are the team of chefs. The coordination, deciding who does what, keeping everyone's view of the meal consistent, and passing messages around, is pure overhead that the lone chef never pays.
Everything you need to truly understand this topic: intuition, mechanics, step by step explanation, code, formulas, and worked example. Click to expand.
Everything you need to truly understand this topic: intuition, mechanics, step by step explanation, code, formulas, and worked example.
Everything important, quickly.
Name the three coordination costs, explain why a single agent pays none of them, walk through error propagation and how per-step rates compound, contrast orchestrator with peer to peer topologies, and close with the two conditions, real parallelism or specialisation, that justify going multi-agent at all.
Real products, models, and research that use this idea.
What an interviewer would ask next. Try answering before peeking at the approach.
Red flags and common mistakes that signal junior thinking. Click to expand.
Assuming more agents means more capability. The default is the opposite. Coordination adds latency and failure surfaces, so a single agent wins unless the task has genuine parallelism or specialisation.
The night-before-the-interview bullets. Scan these on the way to the call.
Primary sources. Skim if you want the original framing.