diff --git a/cmd/lambda/lambda.go b/cmd/lambda/lambda.go
index 60070fc..c79df81 100644
--- a/cmd/lambda/lambda.go
+++ b/cmd/lambda/lambda.go
@@ -1,3 +1,4 @@
+// Package main defines the 'lambda' command-line interface (CLI).
 package main
 
 import (
diff --git a/cmd/lambda/lambda_engine.go b/cmd/lambda/lambda_engine.go
index 150e851..8e2f9e9 100644
--- a/cmd/lambda/lambda_engine.go
+++ b/cmd/lambda/lambda_engine.go
@@ -9,7 +9,7 @@ func LambdaEngine() *cobra.Command {
 		Use:     "engine",
 		Aliases: []string{"eng"},
 		Short:   "Information about available engines",
-		RunE: func(cmd *cobra.Command, args []string) error {
+		RunE: func(cmd *cobra.Command, _ []string) error {
 			return cmd.Help()
 		},
 	}