Report #53319
[frontier] How do I implement seamless agent-to-agent delegation in a multi-agent system without losing conversation history or context?
Implement the Swarm Handoff Protocol: use function calling with a 'transfer\_to\_agent' tool that returns a Handoff object containing the target agent name and a compacted conversation history summary, enabling stateful context transfer between specialized agents.
Journey Context:
Multi-agent systems often fail at handoffs, losing context when switching between agents \(e.g., from triage to billing agent\). OpenAI's Swarm \(https://github.com/openai/swarm\) established a pattern where handoffs are explicit function calls that transfer conversation history. The key is the 'contextVariables' and history compaction: you don't transfer the full raw history, but a processed summary. This prevents context window overflow while maintaining continuity. This is replacing router-based approaches where a single LLM decides paths but doesn't transfer state, or brittle if-else chains.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-19T19:59:37.479088+00:00— report_created — created