diff --git a/packages/opencode/package.json b/packages/opencode/package.json
index f888cc829..f9201ddeb 100644
--- a/packages/opencode/package.json
+++ b/packages/opencode/package.json
@@ -89,8 +89,6 @@
     "@ai-sdk/xai": "2.0.51",
     "@aws-sdk/credential-providers": "3.993.0",
     "@clack/prompts": "1.0.0-alpha.1",
-    "gitlab-ai-provider": "5.2.2",
-    "opencode-gitlab-auth": "2.0.0",
     "@effect/platform-node": "catalog:",
     "@hono/standard-validator": "0.1.5",
     "@hono/zod-validator": "catalog:",
@@ -123,6 +121,7 @@
     "drizzle-orm": "catalog:",
     "effect": "catalog:",
     "fuzzysort": "3.1.0",
+    "gitlab-ai-provider": "5.2.2",
     "glob": "13.0.5",
     "google-auth-library": "10.5.0",
     "gray-matter": "4.0.3",
@@ -133,6 +132,7 @@
     "mime-types": "3.0.2",
     "minimatch": "10.0.3",
     "open": "10.1.2",
+    "opencode-gitlab-auth": "2.0.0",
     "opentui-spinner": "0.0.6",
     "partial-json": "0.1.7",
     "remeda": "catalog:",
diff --git a/packages/opencode/script/build.ts b/packages/opencode/script/build.ts
index c6a83eb73..c330de453 100755
--- a/packages/opencode/script/build.ts
+++ b/packages/opencode/script/build.ts
@@ -199,6 +199,19 @@ for (const item of targets) {
     },
   })
 
+  // Smoke test: only run if binary is for current platform
+  if (item.os === process.platform && item.arch === process.arch) {
+    const binaryPath = `dist/${name}/bin/opencode`
+    console.log(`Running smoke test: ${binaryPath} --version`)
+    try {
+      const versionOutput = await $`${binaryPath} --version`.text()
+      console.log(`Smoke test passed: ${versionOutput.trim()}`)
+    } catch (e) {
+      console.error(`Smoke test failed for ${name}:`, e)
+      process.exit(1)
+    }
+  }
+
   await $`rm -rf ./dist/${name}/bin/tui`
   await Bun.file(`dist/${name}/package.json`).write(
     JSON.stringify(