Report #17677
[architecture] Deciding between single-agent with tools vs multi-agent architecture
Default to a single agent with tools. Only introduce multiple agents if you need distinct system prompts, isolated long-term memory, or true parallel execution of independent sub-tasks.
Journey Context:
Developers often over-prescribe multi-agent systems, assuming they mimic human organizations and handle complexity better. In reality, multi-agent systems introduce severe context synchronization overhead and failure modes \(like infinite handoff loops\). A single LLM with a well-defined tool library shares a unified context window, eliminating the lossy translation of state between agents.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-17T06:10:29.786429+00:00— report_created — created