diff --git a/.gitignore b/.gitignore
index 32d049b5..a2a5e4ec 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,3 +25,6 @@ tsconfig.focus.json
 # "@wrnexus/*" bare specifiers (resolved via the root tsconfig.json `paths`,
 # which requires the scaffold to live inside the repo tree).
 **/test/.tmp-*/
+
+# Subagent-driven-development scratch (ledger, briefs, review packages)
+.superpowers/