diff --git a/cmd/run/main.go b/cmd/run/main.go
index 7a28967..f0a0387 100644
--- a/cmd/run/main.go
+++ b/cmd/run/main.go
@@ -73,13 +73,18 @@ func main() {
 			os.Exit(1)
 		}
 		log.Printf("RUN phase=artifact_queue status=ready path=%s", diagnosticValue(cfg.SpoolRoot))
-		liveLogSink := runruntime.NewLiveLogSink(client)
-		defer liveLogSink.Close()
+		log.Printf("RUN phase=log_spool status=opening path=%s", diagnosticValue(cfg.SpoolRoot))
+		logSpool, err := spool.NewLogSpool(cfg.SpoolRoot)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "initialize log spool: %v\n", err)
+			os.Exit(1)
+		}
+		log.Printf("RUN phase=log_spool status=ready path=%s", diagnosticValue(cfg.SpoolRoot))
 		log.Printf("RUN phase=worker_init status=starting endpoint=%s", diagnosticValue(cfg.RunEndpointID))
 		worker, err := runruntime.NewWorker(
 			cfg,
 			client,
-			runruntime.WithProcessLogSink(liveLogSink),
+			runruntime.WithProcessLogSink(&runruntime.SpoolLogSink{Spool: logSpool}),
 			runruntime.WithLifecycleArtifactHook(&runruntime.QueueArtifactHook{Queue: artifactQueue}),
 		)
 		if err != nil {