diff --git a/.dagger/env/test-core/plan/test-core.cue b/.dagger/env/test-core/plan/test-core.cue
index 60122bbb..a3495b94 100644
--- a/.dagger/env/test-core/plan/test-core.cue
+++ b/.dagger/env/test-core/plan/test-core.cue
@@ -4,8 +4,12 @@ import (
 	"dagger.io/dagger"
 )
 
-name: string | *"world" @dagger(input)
+name: dagger.#Input & {
+	string | *"world"
+}
+
 message: "Hello, \(name)!" @dagger(output)
 
-dir: dagger.#Artifact @dagger(input)
+dir: dagger.#Input & dagger.#Artifact
+
 samedir: dir @dagger(output)
diff --git a/stdlib/dagger/dagger.cue b/stdlib/dagger/dagger.cue
index 8dc76711..094159b3 100644
--- a/stdlib/dagger/dagger.cue
+++ b/stdlib/dagger/dagger.cue
@@ -19,3 +19,9 @@ import (
 
 	id: string
 }
+
+#Input: {
+	@dagger(input)
+	_
+	...
+}