diff --git a/.gitignore b/.gitignore
index 7ba2f4c..77cfc32 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,15 @@ transcripts/
 .rodney/
 .dir-locals.el
 *.log
+
+# VM crash dumps at repo root (app/ has its own rule)
+erl_crash.dump
+
+# Playwright test output artifacts
+app/assets/test-results/
+
+# pi agent tool state for the app sub-project (logs, npm cache)
+app/.pi/
+
+# nono sandbox scratch space
+nono/