59 lines
1.3 KiB
Go
59 lines
1.3 KiB
Go
package demomcp
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import (
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"context"
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"github.com/modelcontextprotocol/go-sdk/mcp"
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"k8s.io/utils/ptr"
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demo "gitea.libretechconsulting.com/rmcguire/go-server-with-otel/api/demo/app/v1alpha1"
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)
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var DemoTool = &mcp.Tool{
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Name: "Demo Tool",
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Title: "Demo Random Fact Tool",
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Description: "Returns a random fact for demo or boredom purposes",
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Annotations: &mcp.ToolAnnotations{
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ReadOnlyHint: true,
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OpenWorldHint: ptr.To(true),
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},
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}
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type DemoToolParams struct {
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Language string `json:"language,omitempty" jsonschema:"Random Fact Language Abbreviation (e.g. en)"`
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}
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func (d *DemoMCPServer) addDemoRandomFactTool() {
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d.server.AddTool(
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mcp.ToolFor(DemoTool, d.demoToolHandler),
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)
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}
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func (d *DemoMCPServer) demoToolHandler(ctx context.Context, req *mcp.CallToolRequest, args *DemoToolParams) (
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*mcp.CallToolResult, any, error,
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) {
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fact, err := d.demoGRPC.GetDemo(ctx, &demo.GetDemoRequest{
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Language: &args.Language,
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})
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if err != nil {
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return &mcp.CallToolResult{
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IsError: true,
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Meta: mcp.Meta{
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"error": err,
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},
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}, nil, err
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}
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return &mcp.CallToolResult{
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Meta: mcp.Meta{
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"language": fact.GetLanguage(),
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"source": fact.GetSource(),
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},
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Content: []mcp.Content{
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&mcp.TextContent{
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Text: fact.GetFact(),
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},
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},
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}, nil, nil
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}
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