added proper logging to the mcp agent mode

cmd/sidekick-mcp/main.go

@@ -25,6 +25,8 @@ func main() {
     log.SetOutput(os.Stderr)
   }
 
+  sidekick.GlobalLogger = log.Printf
+
   tmpl, _ := sidekick.LoadPrompts("prompts.toml")
 
   sidekick.InitMCPServers(cfg.MCPServers)
@@ -38,7 +40,14 @@ func main() {
       }
     }
     mCfg := cfg.Models[aCfg.ModelID]
-    pool[id] = sidekick.NewSidekick(aCfg, mCfg, nil)
+    agent := sidekick.NewSidekick(aCfg, mCfg, nil)
+    if aCfg.LogIntermediate {
+      agentID := id
+      agent.IntermediateHandler = func(msg string) {
+        log.Printf("[Agent %s] %s\n", agentID, msg)
+      }
+    }
+    pool[id] = agent
   }
 
   entryAgent := "coordinator"
@@ -79,9 +88,12 @@ func main() {
     func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
       msg, err := request.RequireString("message")
       if err != nil {
+        log.Printf("Received invalid 'query' request: missing message argument")
         return nil, fmt.Errorf("message argument is required and must be a string: %v", err)
       }
 
+      log.Printf("Received 'query' request (message length: %d)", len(msg))
+
       var inCtx []sidekick.Message
 
       args := request.GetArguments()
@@ -113,9 +125,12 @@ func main() {
 
       responseStr, err := agent.Run(ctx, inCtx, pool)
       if err != nil {
+        log.Printf("Agent run failed: %v", err)
         return nil, fmt.Errorf("agent run failed: %w", err)
       }
 
+      log.Printf("Sending response (length: %d)", len(responseStr))
+
       // Add the final response to the history structure to be returned
       outHistory := append(inCtx, sidekick.Message{
         Role:    sidekick.MessageRole("assistant"),