usage: drop TotalResponses, accumulate requests only

pkg/agent/core.go

@@ -446,9 +446,9 @@ func (s *agentCore) Usage() string {
 	if s.session == nil {
 		return "no active session"
 	}
-	str := fmt.Sprintf("%d in, %d out, %d requests, %d responses",
+	str := fmt.Sprintf("%d in, %d out, %d requests",
 		s.session.TotalInputTokens, s.session.TotalOutputTokens,
-		s.session.TotalRequests, s.session.TotalResponses)
+		s.session.TotalRequests)
 	if s.session.Estimated {
 		str += " [estimated]"
 	}
@@ -604,10 +604,6 @@ func (s *agentCore) Submit(ctx context.Context, input string, handler EventHandl
 	actCancel(nil)
 	s.currentAction.CompareAndSwap(handle, nil)
 
-	if s.session != nil {
-		s.session.addResponse()
-	}
-
 	s.mu.Lock()
 	s.reply = replyBuf.String()
 	s.state = "idle"
@@ -842,10 +838,10 @@ func (s *agentCore) handleCommand(ctx context.Context, input string, handler Eve
 		}
 		ctxEstimated := s.session.estimateTokens()
 		pct := ctxEstimated * 100 / ctxLen
-		usageStr := fmt.Sprintf("~%d / %d tokens (%d%%) | %d in, %d out, %d requests, %d responses",
+		usageStr := fmt.Sprintf("~%d / %d tokens (%d%%) | %d in, %d out, %d requests",
 			ctxEstimated, ctxLen, pct,
 			s.session.TotalInputTokens, s.session.TotalOutputTokens,
-			s.session.TotalRequests, s.session.TotalResponses)
+			s.session.TotalRequests)
 		if s.session.Estimated {
 			usageStr += " [estimated]"
 		}

pkg/agent/session.go

@@ -73,7 +73,6 @@ type Session struct {
 	TotalInputTokens  int
 	TotalOutputTokens int
 	TotalRequests     int
-	TotalResponses    int
 	Estimated         bool // true if any usage was estimated rather than reported by the backend
 }
 
@@ -101,10 +100,6 @@ func (s *Session) addUsage(u backend.Usage, estimated bool) {
 	}
 }
 
-func (s *Session) addResponse() {
-	s.TotalResponses++
-}
-
 func (s *Session) update(assistant backend.Message, results []toolResult) error {
 	s.messages = append(s.messages, assistant)
 	for _, r := range results {