diff --git a/.gitignore b/.gitignore
index d05f016..fc6050e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,3 +30,9 @@ coverage/
 # User-provided files (not tracked)
 .planning/user-files/
 user-files/
+
+# Playwright MCP test artifacts
+.playwright-mcp/
+
+# GSD research cache
+.planning/research/.cache/