essay / agents
10 things a Microsoft hackathon taught me about multi-agent systems
When your agent workflow fails at 2 AM and you need to ship by morning, you learn fast.
Two days at a Microsoft hackathon taught me more about LLM agents and multi-agent workflows than weeks of reading articles, documentation, and “comprehensive guides.”
When your agent workflow fails at 2 AM and you need to ship by morning, you learn fast. Here is what I discovered building production multi-agent systems under pressure.
1. Agent communication protocols matter more than agent capability
The handoffs between agents is where workflows break down. Design your inter-agent communication schema first, optimize individual agents second.
2. Start simple, then orchestrate
Single-purpose agents beat complex multi-task agents every time. Build specialists that excel at specific tasks, then orchestrate them.
3. Error handling is everything
Agents will fail. Your workflow needs graceful degradation paths, not just happy-path scenarios. Plan for recovery mechanisms from day one.
4. Context window management is an art
Know what information to pass forward vs. summarize. Context pollution is real. Agents perform worse when flooded with irrelevant data.
5. Human-in-the-loop is not optional
The best systems have clear intervention points where humans can course-correct. Design explicit checkpoints for review and approval.
6. Prompt engineering scales differently for multi-agent
Multi-agent prompts must account for context from previous agents and handle edge cases from agent interactions. It is a different skill set.
7. Latency compounds quickly
Three agents taking 2 seconds each becomes 10+ with coordination overhead. Design for parallel execution and optimize your critical path.
8. State management is critical
Agents need shared understanding of workflow progress. Invest in robust state management early. It becomes your system’s backbone.
9. Testing requires different strategies
Unit testing individual agents tells you nothing about emergent behavior. You need integration tests and chaos engineering.
10. The orchestrator agent is your MVP
The component coordinating other agents determines success more than individual capabilities. Get this right, everything else becomes manageable.
Hands-on experience accelerates learning exponentially. Reading gives you vocabulary. Building under pressure gives you wisdom.