diff --git a/modules/hermes-agent.nix b/modules/hermes-agent.nix
index 5a85864..f3ed55e 100644
--- a/modules/hermes-agent.nix
+++ b/modules/hermes-agent.nix
@@ -1,7 +1,7 @@
 { config, ... }:
 
 {
-  sops.secrets."hermes-env" = {};
+  sops.secrets."hermes-env" = { };
 
   sops.secrets."hermes/auth.json" = {
     owner = "hermes";
@@ -21,9 +21,11 @@
     settings = {
       model = {
         provider = "openai-codex";
-        default = "gpt-5.5";
+        default = "gpt-5.6-terra";
       };
 
+      agent.reasoning_effort = "medium";
+
       telegram = {
         channel_prompts = {
           "-5271252923" = ''
@@ -60,7 +62,7 @@
 
     environmentFiles = [ config.sops.secrets."hermes-env".path ];
 
-    extraDependencyGroups = [ "messaging"];
+    extraDependencyGroups = [ "messaging" ];
 
     addToSystemPackages = true;
   };