diff --git a/pkg/file/metrics.go b/pkg/file/metrics.go
index 33fc9df..611343b 100644
--- a/pkg/file/metrics.go
+++ b/pkg/file/metrics.go
@@ -18,7 +18,7 @@ var (
 		Subsystem: "file",
 		Name:      "catchupped",
 		Help:      "(0 or) 1 if initial backlog has been sent; (total <= watcher_file_count)",
-	}, []string{"filename"}) // TODO: rm filename?
+	}, []string{"filename"})
 	promFileErr = promauto.NewCounterVec(prometheus.CounterOpts{
 		Namespace: globals.PrometheusPrefix,
 		Subsystem: "file",
diff --git a/pkg/mongo/mongo_struct.go b/pkg/mongo/mongo_struct.go
index 14c5623..d011613 100644
--- a/pkg/mongo/mongo_struct.go
+++ b/pkg/mongo/mongo_struct.go
@@ -29,7 +29,7 @@ type (
 		String string
 		ParsedMetadata
 
-		ParsedContent // TODO: not implemented
+		ParsedContent // TODO: ECS
 
 		// added by ToBson()
 		timeShip time.Time
diff --git a/pkg/sender/metrics.go b/pkg/sender/metrics.go
index 91db2a8..e664a53 100644
--- a/pkg/sender/metrics.go
+++ b/pkg/sender/metrics.go
@@ -29,8 +29,8 @@ var (
 	promShipperDbSendError = promauto.NewCounterVec(prometheus.CounterOpts{
 		Namespace: globals.PrometheusPrefix,
 		// Subsystem: "shipper",
-		Name: "insertion_error",                     // "errors",
-		Help: "Errors while submitting to database", // TODO:
+		Name: "insertion_error", // "errors",
+		Help: "Failed database bulk insertions",
 	}, []string{"filename"})
 	promShipperSynced = promauto.NewGaugeVec(prometheus.GaugeOpts{
 		Namespace: globals.PrometheusPrefix,