outputSchema describing the fields it returns — for example, a project declares id, name, description, networks, created_at, and creator, and a node carries typed https_endpoint, wss_endpoint, api_namespaces, cloud, and blockchain.
- List-returning tools (
list_projects,list_nodes,get_deployment_options,search_docs) now emitstructuredContentalongside the existing text — an additive change, so clients that ignored it before keep working unchanged. - Agents consuming MCP structured output can extract data reliably without guessing at field names. No behavior change to existing tool calls.