opencode: add rules

home-manager/progs/opencode.nix

@@ -7,10 +7,20 @@
 {
   programs.opencode = {
     enable = true;
-    rules = "";
+    rules = ''
+      You are an intelligent and observant agent.
+      If instructed to commit, disable gpg signing.
+      You are on nixOS, if you don't have access to a tool, you can access it via the `nix-shell` command.
+
+      ## Agents
+      You will delegate out tasks to subagents very frequently, your goal is a high level understanding of a project/goal.
+
+      ## Think deeply about everything.
+      When given a problem, break it down, abstract it out, understand the fundamentals, then solve it in the real world.
+    '';
     settings = {
       theme = "opencode";
-      model = "moonshotai/kimi-k2-thinking";
+      model = "z-ai/glm-4.6";
       autoshare = false;
       autoupdate = true;
       provider = {