Tool — Agent-to-Agent (A2A, preview)
Call another Foundry agent as if it were a tool. Useful for composing specialist agents into an orchestrator.
Toolbox shape
{
"type": "a2a_preview",
"name": "<AGENT_NAME>",
"description": "<what this agent does>",
"base_url": "<AGENT_BASE_URL>",
"project_connection_id": "<connection_to_target_project>"
}Auth is either anonymous (for the same project) or via a project connection that holds credentials for the remote agent's host.
References
- A2A tool documentation
- agent-tools.md — tool index