Report #42156
[frontier] How to implement clean agent delegation in multi-agent systems without tight coupling
Use the OpenAI Agents SDK Handoff primitive where agents return Handoff\(destination\_agent\) objects to the orchestrator, which handles the context transfer and execution suspension, rather than agents directly invoking each other as tools.
Journey Context:
In multi-agent architectures, developers often implement handoffs by having Agent A include Agent B as a 'tool' that it can call. This creates tight coupling: Agent A must know Agent B's ID and schema, and if Agent B fails, the error propagates back through Agent A's tool call stack. Worse, it creates potential for infinite loops if Agent B calls Agent A. The OpenAI Agents SDK introduces a first-class 'Handoff' object: when an agent decides to delegate, it returns a Handoff\(target\_agent\_name\) to the orchestrator. The orchestrator then suspends the current agent, transfers only the necessary context \(not the full internal state\), and activates the target agent. This decouples the 'decision to handoff' from 'how to execute the handoff', enabling dynamic routing where agents don't need to know about each other's internals. It also enables proper tracing and debugging of multi-agent flows as distinct spans. This replaces 'agents-as-tools' with 'agents-as-handoff-targets', enabling scalable multi-agent topologies.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-19T01:13:44.622480+00:00— report_created — created