diff --git a/home/features/coding/opencode.nix b/home/features/coding/opencode.nix
index 51f5888..4275f03 100644
--- a/home/features/coding/opencode.nix
+++ b/home/features/coding/opencode.nix
@@ -1,4 +1,4 @@
-{inputs, ...}: {
+{ inputs, ... }: {
   xdg.configFile = {
     "opencode/commands" = {
       source = "${inputs.agents}/commands";
@@ -16,20 +16,23 @@
       source = "${inputs.agents}/skills";
       recursive = true;
     };
+    "opencode/rules" = {
+      source = "${inputs.agents}/rules";
+      recursive = true;
+    };
   };
 
   programs.opencode = {
     enable = true;
     settings = {
       theme = "opencode";
-      plugin = ["oh-my-opencode" "opencode-antigravity-auth@beta"];
-      agent =
-        builtins.fromJSON
+      plugin = [ "oh-my-opencode" "opencode-antigravity-auth@beta" ];
+      agent = builtins.fromJSON
         (builtins.readFile "${inputs.agents}/agents/agents.json");
       formatter = {
         alejandra = {
-          command = ["alejandra" "-q" "-"];
-          extensions = [".nix"];
+          command = [ "alejandra" "-q" "-" ];
+          extensions = [ ".nix" ];
         };
       };
       mcp = {
@@ -93,12 +96,12 @@
                 output = 65535;
               };
               modalities = {
-                input = ["text" "image" "pdf"];
-                output = ["text"];
+                input = [ "text" "image" "pdf" ];
+                output = [ "text" ];
               };
               variants = {
-                low = {thinkingLevel = "low";};
-                high = {thinkingLevel = "high";};
+                low = { thinkingLevel = "low"; };
+                high = { thinkingLevel = "high"; };
               };
             };
             antigravity-gemini-3-flash = {
@@ -108,14 +111,14 @@
                 output = 65536;
               };
               modalities = {
-                input = ["text" "image" "pdf"];
-                output = ["text"];
+                input = [ "text" "image" "pdf" ];
+                output = [ "text" ];
               };
               variants = {
-                minimal = {thinkingLevel = "minimal";};
-                low = {thinkingLevel = "low";};
-                medium = {thinkingLevel = "medium";};
-                high = {thinkingLevel = "high";};
+                minimal = { thinkingLevel = "minimal"; };
+                low = { thinkingLevel = "low"; };
+                medium = { thinkingLevel = "medium"; };
+                high = { thinkingLevel = "high"; };
               };
             };
             antigravity-claude-sonnet-4-5 = {
@@ -125,8 +128,8 @@
                 output = 64000;
               };
               modalities = {
-                input = ["text" "image" "pdf"];
-                output = ["text"];
+                input = [ "text" "image" "pdf" ];
+                output = [ "text" ];
               };
             };
             antigravity-claude-sonnet-4-5-thinking = {
@@ -136,12 +139,12 @@
                 output = 64000;
               };
               modalities = {
-                input = ["text" "image" "pdf"];
-                output = ["text"];
+                input = [ "text" "image" "pdf" ];
+                output = [ "text" ];
               };
               variants = {
-                low = {thinkingConfig = {thinkingBudget = 8192;};};
-                max = {thinkingConfig = {thinkingBudget = 32768;};};
+                low = { thinkingConfig = { thinkingBudget = 8192; }; };
+                max = { thinkingConfig = { thinkingBudget = 32768; }; };
               };
             };
             antigravity-claude-opus-4-6-thinking = {
@@ -151,12 +154,12 @@
                 output = 64000;
               };
               modalities = {
-                input = ["text" "image" "pdf"];
-                output = ["text"];
+                input = [ "text" "image" "pdf" ];
+                output = [ "text" ];
               };
               variants = {
-                low = {thinkingConfig = {thinkingBudget = 8192;};};
-                max = {thinkingConfig = {thinkingBudget = 32768;};};
+                low = { thinkingConfig = { thinkingBudget = 8192; }; };
+                max = { thinkingConfig = { thinkingBudget = 32768; }; };
               };
             };
             "gemini-2.5-flash" = {
@@ -166,8 +169,8 @@
                 output = 65536;
               };
               modalities = {
-                input = ["text" "image" "pdf"];
-                output = ["text"];
+                input = [ "text" "image" "pdf" ];
+                output = [ "text" ];
               };
             };
             "gemini-2.5-pro" = {
@@ -177,8 +180,8 @@
                 output = 65536;
               };
               modalities = {
-                input = ["text" "image" "pdf"];
-                output = ["text"];
+                input = [ "text" "image" "pdf" ];
+                output = [ "text" ];
               };
             };
             "gemini-3-flash-preview" = {
@@ -188,8 +191,8 @@
                 output = 65536;
               };
               modalities = {
-                input = ["text" "image" "pdf"];
-                output = ["text"];
+                input = [ "text" "image" "pdf" ];
+                output = [ "text" ];
               };
             };
             "gemini-3-pro-preview" = {
@@ -199,8 +202,8 @@
                 output = 65535;
               };
               modalities = {
-                input = ["text" "image" "pdf"];
-                output = ["text"];
+                input = [ "text" "image" "pdf" ];
+                output = [ "text" ];
               };
             };
           };
@@ -210,62 +213,31 @@
   };
 
   home.file.".config/opencode/oh-my-opencode.json".text = builtins.toJSON {
-    "$schema" = "https://raw.githubusercontent.com/code-yeongyu/oh-my-opencode/master/assets/oh-my-opencode.schema.json";
+    "$schema" =
+      "https://raw.githubusercontent.com/code-yeongyu/oh-my-opencode/master/assets/oh-my-opencode.schema.json";
     # google_auth removed - use opencode-antigravity-auth plugin instead (already in plugin array)
     agents = {
-      sisyphus = {
-        model = "zai-coding-plan/glm-5";
-      };
-      oracle = {
-        model = "zai-coding-plan/glm-5";
-      };
-      librarian = {
-        model = "zai-coding-plan/glm-5";
-      };
-      explore = {
-        model = "zai-coding-plan/glm-4.5-air";
-      };
-      multimodal-looker = {
-        model = "zai-coding-plan/glm-4.6v";
-      };
-      prometheus = {
-        model = "zai-coding-plan/glm-5";
-      };
-      metis = {
-        model = "zai-coding-plan/glm-5";
-      };
-      momus = {
-        model = "zai-coding-plan/glm-5";
-      };
-      atlas = {
-        model = "zai-coding-plan/glm-5";
-      };
+      sisyphus = { model = "zai-coding-plan/glm-5"; };
+      oracle = { model = "zai-coding-plan/glm-5"; };
+      librarian = { model = "zai-coding-plan/glm-5"; };
+      explore = { model = "zai-coding-plan/glm-4.5-air"; };
+      multimodal-looker = { model = "zai-coding-plan/glm-4.6v"; };
+      prometheus = { model = "zai-coding-plan/glm-5"; };
+      metis = { model = "zai-coding-plan/glm-5"; };
+      momus = { model = "zai-coding-plan/glm-5"; };
+      atlas = { model = "zai-coding-plan/glm-5"; };
     };
     categories = {
-      visual-engineering = {
-        model = "zai-coding-plan/glm-5";
-      };
-      ultrabrain = {
-        model = "zai-coding-plan/glm-5";
-      };
-      artistry = {
-        model = "zai-coding-plan/glm-5";
-      };
-      quick = {
-        model = "zai-coding-plan/glm-5";
-      };
-      unspecified-low = {
-        model = "zai-coding-plan/glm-5";
-      };
-      unspecified-high = {
-        model = "zai-coding-plan/glm-5";
-      };
-      writing = {
-        model = "zai-coding-plan/glm-5";
-      };
+      visual-engineering = { model = "zai-coding-plan/glm-5"; };
+      ultrabrain = { model = "zai-coding-plan/glm-5"; };
+      artistry = { model = "zai-coding-plan/glm-5"; };
+      quick = { model = "zai-coding-plan/glm-5"; };
+      unspecified-low = { model = "zai-coding-plan/glm-5"; };
+      unspecified-high = { model = "zai-coding-plan/glm-5"; };
+      writing = { model = "zai-coding-plan/glm-5"; };
     };
-    disabled_mcps = ["context7" "websearch"];
-    disabled_hooks = ["comment-checker"];
+    disabled_mcps = [ "context7" "websearch" ];
+    disabled_hooks = [ "comment-checker" ];
     git_master = {
       commit_footer = false;
       include_co_authored_by = false;