Type Alias SdkMcpToolDefinition<Schema>

MCP tool definition for SDK servers. Contains a handler function, so not serializable. Supports both Zod 3 and Zod 4 schemas.

type SdkMcpToolDefinition<Schema extends AnyZodRawShape = AnyZodRawShape> = {
    _meta?: Record<string, unknown>;
    annotations?: ToolAnnotations;
    description: string;
    handler: (
        args: InferShape<Schema>,
        extra: unknown,
    ) => Promise<CallToolResult>;
    inputSchema: Schema;
    name: string;
}

Claude SDK

_meta?: Record<string, unknown>

annotations?: ToolAnnotations

description: string

handler: (args: InferShape<Schema>, extra: unknown) => Promise<CallToolResult>

inputSchema: Schema

name: string