fix annotation

packages/opencode/src/auth/index.ts

@@ -32,7 +32,7 @@ export namespace Auth {
     token: Schema.String,
   }) {}
 
-  const _Info = Schema.Union([Oauth, Api, WellKnown])
+  const _Info = Schema.Union([Oauth, Api, WellKnown]).annotate({ discriminator: "type", identifier: "Auth" })
   export const Info = Object.assign(_Info, { zod: zod(_Info) })
   export type Info = Schema.Schema.Type<typeof _Info>
 

packages/opencode/src/util/effect-zod.ts

@@ -60,6 +60,12 @@ function union(ast: SchemaAST.Union): z.ZodTypeAny {
   const items = ast.types.map(walk)
   if (items.length === 1) return items[0]
   if (items.length < 2) return fail(ast)
+
+  const discriminator = (ast as any).annotations?.discriminator
+  if (discriminator) {
+    return z.discriminatedUnion(discriminator, items as [z.ZodObject<any>, z.ZodObject<any>, ...z.ZodObject<any>[]])
+  }
+
   return z.union(items as [z.ZodTypeAny, z.ZodTypeAny, ...Array<z.ZodTypeAny>])
 }