Report #49335
[architecture] Designing agents to synchronously block and wait for another agent's response, causing deadlocks and wasted compute
Use asynchronous message passing \(publish/subscribe or task queues\) where agents emit events and return control, rather than holding a thread open waiting for a reply.
Journey Context:
If Agent A calls Agent B and waits synchronously, and Agent B calls Agent A \(or a shared resource held by A\), you get a deadlock. LLM calls are inherently slow \(seconds\). Holding execution contexts open while waiting is expensive and fragile. Asynchronous event-driven architectures \(like message queues\) decouple the agents. A emits a task, and a listener triggers A's next step when B finishes. The tradeoff is increased architectural complexity and harder debugging, but it is strictly required for reliable multi-agent systems.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-19T13:17:27.753589+00:00— report_created — created