diff --git a/modules/home-manager/coding/agents/pi.nix b/modules/home-manager/coding/agents/pi.nix
index 8aa74d8..6900832 100644
--- a/modules/home-manager/coding/agents/pi.nix
+++ b/modules/home-manager/coding/agents/pi.nix
@@ -207,7 +207,8 @@
       guardrails = mkOption {
         type = types.nullOr (types.submodule {
           options = {
-            enable = mkEnableOption
+            enable =
+              mkEnableOption
               "Generate ~/.pi/agent/extensions/guardrails.json for pi-guardrails. "
               + "Adds @aliou/pi-guardrails to packages automatically.";
 
@@ -262,7 +263,8 @@
       guardrailsPackage = "npm:@aliou/pi-guardrails@0.11.1";
 
       # Guardrails config (only when guardrails is enabled)
-      guardrailsJson = if (cfg.guardrails != null && cfg.guardrails.enable)
+      guardrailsJson =
+        if (cfg.guardrails != null && cfg.guardrails.enable)
         then builtins.toJSON cfg.guardrails.config
         else null;
 
@@ -270,11 +272,14 @@
       piSettingsWithGuardrails = let
         baseSettings = cfg.settings;
         basePackages = baseSettings.packages or [];
-        hasGuardrailsPackage = lib.any
-          (p: lib.hasPrefix "npm:@aliou/pi-guardrails" p ||
-            (lib.hasPrefix "git:" p && lib.hasSuffix "/pi-guardrails" p))
+        hasGuardrailsPackage =
+          lib.any
+          (p:
+            lib.hasPrefix "npm:@aliou/pi-guardrails" p
+            || (lib.hasPrefix "git:" p && lib.hasSuffix "/pi-guardrails" p))
           basePackages;
-        packagesWithGuardrails = if (cfg.guardrails != null && cfg.guardrails.enable && !hasGuardrailsPackage)
+        packagesWithGuardrails =
+          if (cfg.guardrails != null && cfg.guardrails.enable && !hasGuardrailsPackage)
           then basePackages ++ [guardrailsPackage]
           else basePackages;
       in