| Host { |
| n1: circle label="User sends prompt" |
| n2: rectangle label="Agent builds tool call" |
| n3: rectangle label="Send request to gateway" |
| n4: rectangle label="Receive gateway response" |
| n5: rectangle label="Agent responds to user" |
| n1.handle(right) -> n2.handle(left) |
| n2.handle(right) -> n3.handle(left) |
| n3.handle(bottom) -> Gateway.n6.handle(top) [label="Tool request"] |
| n4.handle(right) -> n5.handle(left) |
| } |
|
|
| Gateway { |
| n6: rectangle label="Receive and log request" |
| n7: diamond label="Authorized?" |
| n8: rectangle label="Forward to MCP server" |
| n9: rectangle label="Receive MCP response" |
| n10: rectangle label="Log response and return" |
| n6.handle(right) -> n7.handle(left) |
| n7.handle(right) -> n8.handle(left) [label="Yes"] |
| n7.handle(top) -> Host.n4.handle(left) [label="401 Unauthorized"] |
| n8.handle(bottom) -> MCPServer.n11.handle(top) [label="Forwarded request"] |
| n9.handle(right) -> n10.handle(left) |
| n10.handle(top) -> Host.n4.handle(bottom) [label="Authorized response"] |
| } |
|
|
| MCPServer { |
| n11: rectangle label="Execute tool" |
| n12: rectangle label="Return result" |
| n11.handle(right) -> n12.handle(left) |
| n12.handle(top) -> Gateway.n9.handle(bottom) [label="Tool result"] |
| } |
|
|
