diff --git a/dot_config/zed/private_settings.json b/dot_config/zed/private_settings.json
index 663d9841..0a9a7b8e 100644
--- a/dot_config/zed/private_settings.json
+++ b/dot_config/zed/private_settings.json
@@ -191,20 +191,20 @@
   // ══════════════════════════════════════════════════════════════════════════════
   "agent": {
     "inline_assistant_model": {
-      "provider": "openrouter",
-      "model": "anthropic/claude-sonnet-4.5",
+      "provider": "copilot_chat",
+      "model": "claude-haiku-4.5",
     },
     "use_modifier_to_send": true,
     "play_sound_when_agent_done": true,
     "commit_message_model": {
       "provider": "copilot_chat",
-      "model": "gpt-4.1",
+      "model": "gpt-5-mini",
     },
     "always_allow_tool_actions": true,
     "enable_feedback": false,
     "default_model": {
-      "provider": "openrouter",
-      "model": "anthropic/claude-sonnet-4.5",
+      "provider": "copilot_chat",
+      "model": "claude-opus-4.5",
     },
   },
 
diff --git a/dot_pi/agent/extensions/uv.ts b/dot_pi/agent/extensions/uv.ts
index 8d4eb212..a35957d8 100644
--- a/dot_pi/agent/extensions/uv.ts
+++ b/dot_pi/agent/extensions/uv.ts
@@ -29,9 +29,10 @@ export default function (pi: ExtensionAPI) {
     commandPrefix: `export PATH="${interceptedCommandsPath}:$PATH"`,
   });
 
-  pi.on("session_start", (_event, ctx) => {
-    ctx.ui.notify("UV interceptor loaded", "info");
-  });
+  // Uncomment to notify when the extension is loaded
+  // pi.on("session_start", (_event, ctx) => {
+  //   ctx.ui.notify("UV interceptor loaded", "info");
+  // });
 
   pi.registerTool(bashTool);
 }
diff --git a/private_dot_local/bin/executable_update-submodules b/private_dot_local/bin/executable_update-submodules
new file mode 100644
index 00000000..f3be217b
--- /dev/null
+++ b/private_dot_local/bin/executable_update-submodules
@@ -0,0 +1,36 @@
+#!/bin/bash
+set -e
+
+# Generic script to update all git submodules to their latest default branch (main/master)
+
+echo "Starting submodule update..."
+
+# Use git submodule foreach to iterate through all submodules
+git submodule foreach --recursive '
+    # Fetch latest references from origin
+    git fetch origin -q
+    
+    # Detect the default branch (HEAD) from the remote
+    # This handles repositories using "main", "master", or other default branch names
+    TARGET_BRANCH=$(git remote show origin | grep "HEAD branch" | sed "s/.*: //")
+    
+    # Fallback if detection fails (unlikely on standard git servers)
+    if [ -z "$TARGET_BRANCH" ]; then
+        echo "  Warning: Could not detect HEAD branch for $name. Trying main..."
+        if git show-ref --verify --quiet refs/remotes/origin/main; then
+            TARGET_BRANCH="main"
+        else
+            TARGET_BRANCH="master"
+        fi
+    fi
+    
+    echo "  Processing $name: Checking out and pulling $TARGET_BRANCH"
+    
+    # Checkout the target branch
+    git checkout "$TARGET_BRANCH" -q
+    
+    # Pull the latest changes
+    git pull origin "$TARGET_BRANCH" -q
+'
+
+echo "All submodules updated successfully."