diff --git a/.gitignore b/.gitignore
index b2eccb1..c14f2f9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,11 +1,14 @@
 # Stow metadata
 .stow-local-ignore
-pi/.pi/agent/profiles
-pi/.pi/agent/sessions
-pi/.pi/agent/auth.json
-pi/.pi/agent/settings.json
-pi/.pi/agent/usage-cache.json
-pi/.pi/agent/mcp-cache.json
-pi/.pi/agent/auth.json.current
-pi/.pi/agent/run-history.jsonl
-pi/.pi/context.md
+pi/.pi/agent/profiles
+pi/.pi/agent/sessions
+pi/.pi/agent/auth.json
+pi/.pi/agent/settings.json
+pi/.pi/agent/usage-cache.json
+pi/.pi/agent/mcp-cache.json
+pi/.pi/agent/auth.json.current
+pi/.pi/agent/run-history.jsonl
+pi/.pi/agent/auth.json.lock
+pi/.pi/context.md
+pi/.pi/agent/cache/modules
+pi/.pi/agent/extensions/*/node_modules