04ca8ac03b
Make Tool APIs future-proof by pushing generics into CallToolParams, and using CallToolParams throughout. This has several advantages: - We no longer need the awkward CallToolOptions type, which is almost but not quite like CallToolParams. - NewTool no longer needs to define its own handler type: it accepts a ToolHandler[TArgs]. This also means its signature is future-proof. Additionally, provide a `CallTool` helper (the analog of NewTool) to serve as a more strongly typed variant of `ClientSession.CallTool`. + design, protocol generation Change-Id: I80172a25bc50734dae84a541aa4776ed9161694e Reviewed-on: https://go-review.googlesource.com/c/tools/+/676495 Reviewed-by: Jonathan Amsterdam <jba@google.com> Auto-Submit: Robert Findley <rfindley@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
44 lines
1,016 B
Go
44 lines
1,016 B
Go
// Copyright 2025 The Go MCP SDK Authors. All rights reserved.
|
|
// Use of this source code is governed by an MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
// !+
|
|
package main
|
|
|
|
import (
|
|
"context"
|
|
"log"
|
|
"os/exec"
|
|
|
|
"github.com/modelcontextprotocol/go-sdk/mcp"
|
|
)
|
|
|
|
func main() {
|
|
ctx := context.Background()
|
|
// Create a new client, with no features.
|
|
client := mcp.NewClient("mcp-client", "v1.0.0", nil)
|
|
// Connect to a server over stdin/stdout
|
|
transport := mcp.NewCommandTransport(exec.Command("myserver"))
|
|
session, err := client.Connect(ctx, transport)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
defer session.Close()
|
|
// Call a tool on the server.
|
|
params := &mcp.CallToolParams[map[string]any]{
|
|
Name: "greet",
|
|
Arguments: map[string]any{"name": "you"},
|
|
}
|
|
if res, err := mcp.CallTool(ctx, session, params); err != nil {
|
|
log.Printf("CallTool failed: %v", err)
|
|
} else {
|
|
if res.IsError {
|
|
log.Print("tool failed")
|
|
}
|
|
for _, c := range res.Content {
|
|
log.Print(c.Text)
|
|
}
|
|
}
|
|
}
|
|
|
|
//!-
|