mcpproto

type ErrorBody struct {
	Code    int    `json:"code"`
	Message string `json:"message"`
}

type Provider interface {
	Tools(ctx context.Context) []Tool
	CallTool(ctx context.Context, name string, args map[string]any) ToolResult
}

type ProviderFunc struct {
	ToolsFn    func(ctx context.Context) []Tool
	CallToolFn func(ctx context.Context, name string, args map[string]any) ToolResult
}

type Request struct {
	JSONRPC string          `json:"jsonrpc"`
	ID      any             `json:"id,omitempty"`
	Method  string          `json:"method"`
	Params  json.RawMessage `json:"params,omitempty"`
}

type Response struct {
	JSONRPC string     `json:"jsonrpc"`
	ID      any        `json:"id,omitempty"`
	Result  any        `json:"result,omitempty"`
	Error   *ErrorBody `json:"error,omitempty"`
}

type Server struct {
	ProtocolVersion string
	Name            string
	Version         string
	Instructions    string
	Provider        Provider
}

type TextContent struct {
	Type string `json:"type"`
	Text string `json:"text"`
}

type Tool struct {
	Name        string         `json:"name"`
	Description string         `json:"description"`
	InputSchema map[string]any `json:"inputSchema"`
}

type ToolCallParams struct {
	Name      string         `json:"name"`
	Arguments map[string]any `json:"arguments"`
}

type ToolResult struct {
	Content           []TextContent `json:"content"`
	StructuredContent any           `json:"structuredContent,omitempty"`
	IsError           bool          `json:"isError,omitempty"`
}