A single x-mcp-header annotation discovered in a tool inputSchema, together with the path of property keys to reach the annotated value.
the resolved header name, e.g. Mcp-Param-Region
the raw x-mcp-header value (header suffix), e.g. Region
property keys from the root inputSchema to the annotated value
A single x-mcp-header annotation discovered in a tool inputSchema, together with the path of property keys to reach the annotated value.