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internal/multiagent/eino_adk_run_loop.go

@@ -553,6 +553,13 @@ func runEinoADKAgentLoop(ctx context.Context, args *einoADKRunLoopArgs, baseMsgs
 		return true, nil
 	}
 
+	// 仅在退避重试后真正收到数据/完成一步时清零，避免重启后首个无错 ADK 事件误把计数打回 0。
+	confirmTransientRetryRecovery := func() {
+		if transientRetrier.attempt() > 0 {
+			transientRetrier.reset()
+		}
+	}
+
 	takePartial := func(runErr error) (*RunResult, error) {
 		if len(runAccumulatedMsgs) <= baseAccumulatedCount {
 			return nil, runErr
@@ -638,8 +645,6 @@ func runEinoADKAgentLoop(ctx context.Context, args *einoADKRunLoopArgs, baseMsgs
 			if restarted {
 				continue
 			}
-		} else {
-			transientRetrier.reset()
 		}
 		if ev.AgentName != "" && progress != nil {
 			iterEinoAgent := orchestratorName
@@ -719,6 +724,9 @@ func runEinoADKAgentLoop(ctx context.Context, args *einoADKRunLoopArgs, baseMsgs
 					zap.String("agent", ev.AgentName),
 					zap.String("tool", toolName))
 			}
+			if toolStreamRecvErr == nil {
+				confirmTransientRetryRecovery()
+			}
 			continue
 		}
 
@@ -990,6 +998,8 @@ func runEinoADKAgentLoop(ctx context.Context, args *einoADKRunLoopArgs, baseMsgs
 				if restarted {
 					continue
 				}
+			} else {
+				confirmTransientRetryRecovery()
 			}
 			continue
 		}
@@ -1083,6 +1093,7 @@ func runEinoADKAgentLoop(ctx context.Context, args *einoADKRunLoopArgs, baseMsgs
 			toolCallID := strings.TrimSpace(msg.ToolCallID)
 			tryEmitToolResultProgress(toolName, content, toolCallID, isErr, ev.AgentName)
 		}
+		confirmTransientRetryRecovery()
 	}
 
 	mcpIDsMu.Lock()

internal/multiagent/eino_transient_retry.go

@@ -143,7 +143,7 @@ func (r *einoTransientRunRetrier) attempt() int { return r.attempts }
 
 func (r *einoTransientRunRetrier) maxAttempts() int { return r.policy.maxAttempts }
 
-// reset 在一次成功推进后清零重试计数，使后续临时错误从第 1 次退避重新开始。
+// reset 在退避重试后成功推进（流/消息完整接收）时清零计数，使后续临时错误从第 1 次退避重新开始。
 func (r *einoTransientRunRetrier) reset() { r.attempts = 0 }
 
 func einoRunRetryMaxAttempts(args *einoADKRunLoopArgs) int {

internal/multiagent/eino_transient_retry_test.go

@@ -105,6 +105,32 @@ func TestEinoTransientRunRetrierReset(t *testing.T) {
 	}
 }
 
+func TestEinoTransientRunRetrierConsecutiveFailures(t *testing.T) {
+	t.Parallel()
+	r := newEinoTransientRunRetrier(einoTransientRunRetryPolicy{maxAttempts: 10, maxBackoff: 30 * time.Second})
+	ctx := context.Background()
+	runErr := errors.New("internal server error")
+	args := &einoADKRunLoopArgs{}
+	base := []adk.Message{schema.UserMessage("hi")}
+
+	for want := 1; want <= 3; want++ {
+		restarted, _, _, _, err := r.tryRetry(ctx, runErr, args, base, nil, len(base))
+		if err != nil {
+			t.Fatalf("tryRetry attempt %d: %v", want, err)
+		}
+		if !restarted {
+			t.Fatalf("tryRetry attempt %d: want restarted", want)
+		}
+		if got := r.attempt(); got != want {
+			t.Fatalf("after failure %d: attempt=%d, want %d", want, got, want)
+		}
+	}
+	r.reset()
+	if r.attempt() != 0 {
+		t.Fatalf("after successful recovery reset: attempt=%d, want 0", r.attempt())
+	}
+}
+
 func TestAppendUserMessageIfNeeded(t *testing.T) {
 	t.Parallel()
 	msgs := []adk.Message{schema.UserMessage("old task")}