tool rework

packages/opencode/src/tool/example.ts

@@ -0,0 +1,19 @@
+import { z } from "zod"
+import { Tool } from "./tool"
+
+export const ExampleTool = Tool.define({
+  id: "opencode.example",
+  description: "Example tool",
+  parameters: z.object({
+    foo: z.string().describe("The foo parameter"),
+    bar: z.number().describe("The bar parameter"),
+  }),
+  async execute(params) {
+    return {
+      metadata: {
+        lol: "hey",
+      },
+      output: "Hello, world!",
+    }
+  },
+})