feat(claude-code): add sox for voice mode

users/modules/dev/ai/claude.nix

@@ -6,16 +6,23 @@
 }:
 with lib; let
   cfg = config.home.dev.ai.claude;
+  jsonFormat = pkgs.formats.json {};
 in {
-  options.home.dev.ai.claude.enable = mkEnableOption "Enables Claude-related packages";
+  options.home.dev.ai.claude = {
+    enable = mkEnableOption "Enables Claude-related packages";
+    mcpServers = mkOption {
+      inherit (jsonFormat) type;
+      default = {};
+    };
+  };
   config = mkIf cfg.enable {
     home.packages = let
       claude-jj = pkgs.writeShellScriptBin "claude-jj" ''
-        ${pkgs.claude-code}/bin/claude --append-system-prompt 'CRITICAL: This repository uses Jujutsu (jj), NOT git. Never use git commands. Use jj equivalents. See CLAUDE.md.' "$@"
+        ${pkgs.claude-code}/bin/claude --append-system-prompt 'CRITICAL: This repository uses Jujutsu (jj), NOT git. Never use git commands. Use jj equivalents.' "$@"
       '';
-    in [claude-jj];
+    in [claude-jj pkgs.sox];
     programs.claude-code = {
-      inherit (cfg) enable;
+      inherit (cfg) enable mcpServers;
     };
   };
 }

users/modules/dev/ai/default.nix

@@ -6,18 +6,34 @@
 }:
 with lib; let
   cfg = config.home.dev.ai;
+  jsonFormat = pkgs.formats.json {};
 in {
   imports = [
     ./claude.nix
     ./ollama.nix
   ];
 
-  options.home.dev.ai.enable = mkEnableOption "Enables AI features";
-  config.home = mkIf cfg.enable {
-    dev.ai = {
-      claude.enable = mkDefault cfg.enable;
-      ollama.enable = mkDefault cfg.enable;
+  options.home.dev.ai = {
+    enable = mkEnableOption "Enables AI features";
+    mcpServers = mkOption {
+      inherit (jsonFormat) type;
+      default = {};
+    };
+  };
+  config = {
+    home = mkIf cfg.enable {
+      dev.ai = {
+        claude = {
+          enable = mkDefault cfg.enable;
+          mcpServers = mkDefault cfg.mcpServers;
+        };
+        ollama.enable = mkDefault cfg.enable;
+      };
+      packages = [pkgs.lmstudio];
+    };
+    programs.mcp = mkIf (cfg.mcpServers != {}) {
+      enable = true;
+      servers = cfg.mcpServers;
     };
-    packages = [pkgs.lmstudio];
   };
 }