sync

js/src/bus/index.ts

@@ -1,4 +1,4 @@
-import type { z, ZodSchema } from "zod";
+import { z, type ZodType } from "zod/v4";
 import { App } from "../app";
 import { Log } from "../util/log";
 
@@ -16,14 +16,30 @@ export namespace Bus {
 
   export type EventDefinition = ReturnType<typeof event>;
 
-  export function event<Type extends string, Properties extends ZodSchema>(
+  const registry = new Map<string, EventDefinition>();
+
+  export function event<Type extends string, Properties extends ZodType>(
     type: Type,
     properties: Properties,
   ) {
-    return {
+    const result = {
       type,
       properties,
     };
+    registry.set(type, result);
+    return result;
+  }
+
+  export function specs() {
+    const children = {} as any;
+    for (const [type, def] of registry.entries()) {
+      children[def.type] = def.properties;
+    }
+    const result = z.toJSONSchema(z.object(children)) as any;
+    result.definitions = result.properties;
+    delete result.properties;
+    delete result.required;
+    return result;
   }
 
   export function publish<Definition extends EventDefinition>(

js/src/index.ts

@@ -1,6 +1,9 @@
 import { App } from "./app";
 import { Server } from "./server/server";
 import { Cli, Command, runExit } from "clipanion";
+import fs from "fs/promises";
+import path from "path";
+import { Bus } from "./bus";
 
 const cli = new Cli({
   binaryLabel: `opencode`,
@@ -22,11 +25,21 @@ cli.register(
   },
 );
 cli.register(
-  class OpenApi extends Command {
-    static paths = [["openapi"]];
+  class Generate extends Command {
+    static paths = [["generate"]];
     async execute() {
       const specs = await Server.openapi();
-      this.context.stdout.write(JSON.stringify(specs, null, 2));
+      const dir = "gen";
+      await fs.rmdir(dir, { recursive: true }).catch(() => {});
+      await fs.mkdir(dir, { recursive: true });
+      await Bun.write(
+        path.join(dir, "openapi.json"),
+        JSON.stringify(specs, null, 2),
+      );
+      await Bun.write(
+        path.join(dir, "event.json"),
+        JSON.stringify(Bus.specs(), null, 2),
+      );
     }
   },
 );

js/src/storage/storage.ts

@@ -5,7 +5,7 @@ import { Log } from "../util/log";
 import { App } from "../app";
 import { AppPath } from "../app/path";
 import { Bus } from "../bus";
-import z from "zod";
+import z from "zod/v4";
 
 export namespace Storage {
   const log = Log.create({ service: "storage" });