diff --git a/fixtures/wip/module.ts b/fixtures/input/module.ts
similarity index 100%
rename from fixtures/wip/module.ts
rename to fixtures/input/module.ts
diff --git a/fixtures/output/module.d.ts b/fixtures/output/module.d.ts
new file mode 100644
index 0000000..dfac1e8
--- /dev/null
+++ b/fixtures/output/module.d.ts
@@ -0,0 +1,12 @@
+declare module '@stacksjs/some-module' {
+  interface DtsGenerationConfig {
+    customPlugins?: Array<{
+      name: string
+      transform: (code: string) => string
+    }>
+  }
+
+  interface DtsGenerationResult {
+    customPluginResults?: Record<string, string>
+  }
+}
\ No newline at end of file