fix(agents): upgrade opencode to 2.2.1

.changeset/opencode-2-2-1-carrier.md

@@ -0,0 +1,5 @@
+---
+"agents": patch
+---
+
+`agents/models/opencode`: keep Cloudflare models working on OpenCode 2.2.1, which no longer bundles `@ai-sdk/vercel`; the provider now names `gitlab-ai-provider`, which every OpenCode release from 2.0.24 to 2.2.1 loads in-process. See [the OpenCode harness example](https://github.com/cloudflare/agents/blob/main/examples/next/harnesses/opencode/README.md#what-it-shows).

examples/next/harnesses/opencode/package.json

@@ -14,8 +14,8 @@
   "dependencies": {
     "@cloudflare/computer": "^0.8.0",
     "@cloudflare/kumo": "^2.6.0",
-    "@opencode/plugin": "2.0.24",
-    "@opencode/sdk": "2.0.24",
+    "@opencode/plugin": "2.2.1",
+    "@opencode/sdk": "2.2.1",
     "@phosphor-icons/react": "^2.1.10",
     "@streamdown/code": "^1.1.1",
     "agents": "*",

examples/next/harnesses/opencode/vite.config.ts

@@ -13,7 +13,7 @@ export default defineConfig({
       name: "empty-httpapi-scalar",
       enforce: "pre",
       load: (id) =>
-        id.includes("/effect/dist/unstable/httpapi/internal/httpApiScalar.js")
+        id.includes("/effect/dist/http-api/internal/httpApiScalar.js")
           ? 'export const javascript = "";'
           : null
     },

packages/agents/package.json

@@ -52,8 +52,8 @@
     "@modelcontextprotocol/conformance-v2": "npm:@modelcontextprotocol/conformance@0.2.0-alpha.12",
     "@modelcontextprotocol/sdk": "1.32.2",
     "@modelcontextprotocol/server": "2.4.0",
-    "@opencode/plugin": "2.0.24",
-    "@opencode/sdk": "2.0.24",
+    "@opencode/plugin": "2.2.1",
+    "@opencode/sdk": "2.2.1",
     "@tanstack/ai": "0.38.0",
     "@types/react": "^19.2.17",
     "@valibot/to-json-schema": "1.3.0",

packages/agents/src/harness/opencode/tests/vitest.config.ts

@@ -13,10 +13,26 @@ export default defineConfig({
       name: "empty-httpapi-scalar",
       enforce: "pre",
       load: (id) =>
-        id.includes("/effect/dist/unstable/httpapi/internal/httpApiScalar.js")
+        id.includes("/effect/dist/http-api/internal/httpApiScalar.js")
           ? 'export const javascript = "";'
           : null
     },
+    {
+      // OpenCode inlines models.dev's catalog as one 8 MB string, too large
+      // for the message that carries a module into the test runtime. These
+      // tests turn catalog fetches off and use only the Cloudflare provider,
+      // so an empty catalog stands in.
+      name: "empty-models-dev-snapshot",
+      enforce: "pre",
+      transform: (code, id) =>
+        id.includes("/@opencode/core/dist/") &&
+        code.includes("// src/models-dev/snapshot.txt")
+          ? code.replace(
+              /(\/\/ src\/models-dev\/snapshot\.txt\nvar snapshot_default = )'.*';/,
+              "$1'{}';"
+            )
+          : null
+    },
     stripNodeModulesSourceMapReferences(),
     cloudflareTest({
       wrangler: { configPath: path.join(testsDir, "wrangler.jsonc") }

packages/agents/src/models/opencode/index.ts

@@ -53,11 +53,13 @@ export const CLOUDFLARE_PROVIDER_ID = "cloudflare";
  * (make the model). Its `sdk` step can only load packages it bundles; any
  * other is handed to an npm installer that cannot run in workerd, and an
  * external plugin's `sdk` hook runs after that installer. So the provider
- * names `@ai-sdk/vercel`, which OpenCode bundles and loads in-process, and
- * this plugin's `language` hook replaces the model it would make. The
- * Vercel client is built but never called: its base URL does not resolve.
+ * names `gitlab-ai-provider`, which OpenCode bundles and loads in-process
+ * for any provider that names it (OpenCode 2.2.1 stopped bundling
+ * `@ai-sdk/vercel`, the package used before), and this plugin's `language`
+ * hook replaces the model it would make. The GitLab client is built but
+ * never called.
  */
-const CARRIER_PACKAGE = "aisdk:@ai-sdk/vercel";
+const CARRIER_PACKAGE = "aisdk:gitlab-ai-provider";
 const UNREACHABLE_BASE_URL = "https://workers-ai.binding.invalid/v1";
 
 /**