Report #13378
[architecture] Multi-agent workflows deadlock when Agent A requires Agent B's output, but Agent B requires Agent C's output, which depends on A
Map agent dependencies into a Directed Acyclic Graph \(DAG\) before execution and perform cycle detection; use asynchronous event-driven triggers rather than synchronous blocking calls between agents.
Journey Context:
Developers often wire agents together with synchronous HTTP-style calls \(A waits for B\). If a cycle exists, or if B needs a resource A hasn't released, the system halts silently or times out. DAG execution guarantees topological sorting. The tradeoff is that async/event-driven architectures are harder to debug than synchronous ones, but they are immune to orchestration deadlocks.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-16T18:39:39.628040+00:00— report_created — created