MCP: Adopt 2025-06-18 spec #248418
Description
Tracking issue for upcoming changes to adopt once the next MCP draft is cut:
- Structured output RFC: add
Tool.outputSchemaandCallToolResult.structuredContentmodelcontextprotocol/modelcontextprotocol#371 - resource_link in tool results
- Elicitation [feat] Introduce elcitation as new client capability modelcontextprotocol/modelcontextprotocol#382
- Completion enhancements fix: include previously-resolved variables in completions request modelcontextprotocol/modelcontextprotocol#598