diff --git a/projects/research/project.yaml b/projects/research/project.yaml
deleted file mode 100644
index 47c6a0ae..00000000
--- a/projects/research/project.yaml
+++ /dev/null
@@ -1,3 +0,0 @@
-# Temporary: main's legacy selector needs this while the grouped-layout PR runs.
-# The new location-based selector ignores it; delete it after the migration merges.
-kind: research-spike
diff --git a/projects/tools/project.yaml b/projects/tools/project.yaml
deleted file mode 100644
index 9d1a0ee2..00000000
--- a/projects/tools/project.yaml
+++ /dev/null
@@ -1,3 +0,0 @@
-# Temporary: main's legacy selector needs this while the grouped-layout PR runs.
-# The new location-based selector ignores it; delete it after the migration merges.
-kind: tool
diff --git a/projects/use-case-examples/project.yaml b/projects/use-case-examples/project.yaml
deleted file mode 100644
index 11acd1f5..00000000
--- a/projects/use-case-examples/project.yaml
+++ /dev/null
@@ -1,3 +0,0 @@
-# Temporary: main's legacy selector needs this while the grouped-layout PR runs.
-# The new location-based selector ignores it; delete it after the migration merges.
-kind: use-case-example