Upgrade to Zod v4 (#2605)

Co-authored-by: GitHub Action <action@github.com>

packages/opencode/src/provider/models.ts

@@ -1,7 +1,7 @@
 import { Global } from "../global"
 import { Log } from "../util/log"
 import path from "path"
-import { z } from "zod"
+import z from "zod/v4"
 import { data } from "./models-macro" with { type: "macro" }
 import { Installation } from "../installation"
 
@@ -29,10 +29,10 @@ export namespace ModelsDev {
         output: z.number(),
       }),
       experimental: z.boolean().optional(),
-      options: z.record(z.any()),
+      options: z.record(z.string(), z.any()),
       provider: z.object({ npm: z.string() }).optional(),
     })
-    .openapi({
+    .meta({
       ref: "Model",
     })
   export type Model = z.infer<typeof Model>
@@ -44,9 +44,9 @@ export namespace ModelsDev {
       env: z.array(z.string()),
       id: z.string(),
       npm: z.string().optional(),
-      models: z.record(Model),
+      models: z.record(z.string(), Model),
     })
-    .openapi({
+    .meta({
       ref: "Provider",
     })
 

packages/opencode/src/provider/provider.ts

@@ -1,4 +1,4 @@
-import z from "zod"
+import z from "zod/v4"
 import path from "path"
 import { Config } from "../config/config"
 import { mergeDeep, sortBy } from "remeda"

packages/opencode/src/provider/transform.ts

@@ -1,5 +1,6 @@
 import type { ModelMessage } from "ai"
 import { unique } from "remeda"
+import type { JSONSchema } from "zod/v4/core"
 
 export namespace ProviderTransform {
   function normalizeToolCallIds(msgs: ModelMessage[]): ModelMessage[] {
@@ -112,4 +113,29 @@ export namespace ProviderTransform {
     }
     return outputLimit
   }
+
+  export function schema(_providerID: string, _modelID: string, schema: JSONSchema.BaseSchema) {
+    /*
+    if (["openai", "azure"].includes(providerID)) {
+      if (schema.type === "object" && schema.properties) {
+        for (const [key, value] of Object.entries(schema.properties)) {
+          if (schema.required?.includes(key)) continue
+          schema.properties[key] = {
+            anyOf: [
+              value as JSONSchema.JSONSchema,
+              {
+                type: "null",
+              },
+            ],
+          }
+        }
+      }
+    }
+
+    if (providerID === "google") {
+    }
+    */
+
+    return schema
+  }
 }