Improve CLI command descriptions and usability

Author: gmarav05

cmd/list.go

@@ -32,7 +32,7 @@ import (
 // listCmd represents the modctl command for list.
 var listCmd = &cobra.Command{
 	Use:                "ls",
-	Short:              "List will lists the current built model artifacts from local storage.",
+	Short:              "List model artifacts currently stored locally.",
 	Args:               cobra.NoArgs,
 	DisableAutoGenTag:  true,
 	SilenceUsage:       true,

cmd/prune.go

@@ -32,7 +32,7 @@ var pruneConfig = config.NewPrune()
 // pruneCmd represents the modctl command for prune.
 var pruneCmd = &cobra.Command{
 	Use:                "prune [flags]",
-	Short:              "Prune can help to cleanup useless manifests and blobs in the local storage.",
+	Short:              "Prune removes unused manifests and blobs from local storage (destructive operation).",
 	Args:               cobra.NoArgs,
 	DisableAutoGenTag:  true,
 	SilenceUsage:       true,

cmd/root.go

@@ -40,7 +40,7 @@ var logFile *os.File
 // rootCmd represents the modctl command.
 var rootCmd = &cobra.Command{
 	Use:                "modctl",
-	Short:              "A command line tool for managing artifact bundled based on the ModelPack Specification",
+	Short:              "A command-line tool for managing artifacts bundled according to the ModelPack Specification.",
 	Args:               cobra.MaximumNArgs(1),
 	DisableAutoGenTag:  true,
 	SilenceUsage:       true,

cmd/tag.go

@@ -29,7 +29,7 @@ import (
 // tagCmd represents the modctl command for tag.
 var tagCmd = &cobra.Command{
 	Use:                "tag [flags] <source> <target>",
-	Short:              "Tag can tag one model artifact to another one without rebuiding.",
+	Short:              "Tag one model artifact as another without rebuilding.",
 	Args:               cobra.ExactArgs(2),
 	DisableAutoGenTag:  true,
 	SilenceUsage:       true,

cmd/upload.go

@@ -32,7 +32,7 @@ var uploadConfig = config.NewUpload()
 // uploadCmd represents the modctl command for upload.
 var uploadCmd = &cobra.Command{
 	Use:                "upload [flags] <file>",
-	Short:              "Upload a file to the remote end in advance to save time in the later build, applicable to the scenario of uploading while downloading, this function needs to be used together with build.",
+	Short:              "Pre-upload a file to a remote repository to speed up later builds.",
 	Args:               cobra.ExactArgs(1),
 	DisableAutoGenTag:  true,
 	SilenceUsage:       true,