import { z } from "zod/v4"

export type ToolContext = {
  sessionID: string
  messageID: string
  agent: string
  abort: AbortSignal
}

export function tool<Args extends z.ZodRawShape>(input: {
  description: string
  args: Args
  execute(args: z.infer<z.ZodObject<Args>>, context: ToolContext): Promise<string>
}) {
  return input
}
tool.schema = z

export type ToolDefinition = ReturnType<typeof tool>