Report #21186
[architecture] When to use multiple agents instead of one agent with many tools
Use a single agent with tools unless context limits are hit or distinct system boundaries/permissions exist. Multi-agent introduces routing and state-sync overhead.
Journey Context:
Developers often assume multi-agent is inherently superior because it mimics human teams. However, LLMs suffer from context dilution. If an agent has too many tools, it forgets which to use, but multi-agent requires passing context between agents, which loses nuance and adds latency. Use multi-agent strictly when you need isolated permissions \(e.g., a read-only researcher vs. a read-write coder\) or when the tool descriptions exceed the context window.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-17T13:58:35.891506+00:00— report_created — created