diff --git a/.opencode/plugins/tui-config-once-toast.tsx b/.opencode/plugins/tui-config-once-toast.tsx
new file mode 100644
index 0000000000..f5447b0b54
--- /dev/null
+++ b/.opencode/plugins/tui-config-once-toast.tsx
@@ -0,0 +1,25 @@
+import type { TuiPluginModule } from "@opencode-ai/plugin/tui"
+
+let seen = false
+
+const plugin: TuiPluginModule & { id: string } = {
+  id: "local.config-once-toast",
+  async tui(api) {
+    if (seen) return
+
+    const cfg = api.state.config
+    if (cfg.plugin !== undefined && !Array.isArray(cfg.plugin)) {
+      throw new Error("Invalid config: plugin must be an array")
+    }
+
+    const mdl = typeof cfg.model === "string" && cfg.model.trim() ? cfg.model : "default"
+    seen = true
+    api.ui.toast({
+      title: "Config check",
+      message: `This is a 1 time toast, validating ur config (model: ${mdl})`,
+      variant: "info",
+    })
+  },
+}
+
+export default plugin
diff --git a/.opencode/tui.json b/.opencode/tui.json
index 1eee01b302..cc8f9bc56e 100644
--- a/.opencode/tui.json
+++ b/.opencode/tui.json
@@ -1,6 +1,7 @@
 {
   "$schema": "https://opencode.ai/tui.json",
   "plugin": [
+    "./plugins/tui-config-once-toast.tsx",
     [
       "./plugins/tui-smoke.tsx",
       {