Add real-time developer messaging via NATS

- Add SendMessageTool for sending messages to other devs
- Add ReceiveMessagesTool for receiving messages
- Auto-detect sender role from workspace path (admin-dev/api-dev/web-dev)
- Messages published to NATS channels: dev.messages.{role}
- Enable real-time communication between Claude instances

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/tools/index.ts

@@ -4,24 +4,26 @@ import { FileWriteTool } from './builtin/FileWriteTool';
 import { FileListTool } from './builtin/FileListTool';
 import { SystemCommandTool } from './builtin/SystemCommandTool';
 import { HttpRequestTool } from './builtin/HttpRequestTool';
+import { SendMessageTool, ReceiveMessagesTool } from './builtin/messaging';
+import { NatsClient } from '../nats/NatsClient';
 
 export * from './base/ToolHandler';
 
-// Registry of all built-in tools
-export const builtinTools: ToolHandler[] = [
-  new FileReadTool(),
-  new FileWriteTool(),
-  new FileListTool(),
-  new SystemCommandTool(),
-  new HttpRequestTool(),
-];
-
-export function createBuiltinTools(): Map<string, ToolHandler> {
+export function createBuiltinTools(natsClient: NatsClient): Map<string, ToolHandler> {
   const tools = new Map<string, ToolHandler>();
-  
-  for (const tool of builtinTools) {
-    tools.set(tool.name, tool);
-  }
-  
+
+  // File operation tools
+  tools.set('file_read', new FileReadTool());
+  tools.set('file_write', new FileWriteTool());
+  tools.set('file_list', new FileListTool());
+
+  // System tools
+  tools.set('system_command', new SystemCommandTool());
+  tools.set('http_request', new HttpRequestTool());
+
+  // Messaging tools (require NATS client)
+  tools.set('send_message', new SendMessageTool(natsClient));
+  tools.set('receive_messages', new ReceiveMessagesTool(natsClient));
+
   return tools;
 }