diff --git a/cmd/command/define.go b/cmd/command/define.go
index 8ed6d74..48eee70 100644
--- a/cmd/command/define.go
+++ b/cmd/command/define.go
@@ -24,6 +24,12 @@ var defineCmd = &cobra.Command{
 			define.ContextKeyLocation:       simpleCmdFlag.location,
 			define.ContextKeyCommandManaged: false,
 		})), "install failed")
+
+		define.Logger.Info("defined command", map[string]interface{}{
+			"name":     simpleCmdFlag.name,
+			"version":  simpleCmdFlag.version,
+			"location": simpleCmdFlag.location,
+		})
 	},
 }
 
diff --git a/cmd/command/install.go b/cmd/command/install.go
index 097bb4a..d214415 100644
--- a/cmd/command/install.go
+++ b/cmd/command/install.go
@@ -26,6 +26,12 @@ var installCmd = &cobra.Command{
 			define.ContextKeyLocation:       simpleCmdFlag.location,
 			define.ContextKeyCommandManaged: true,
 		})), "install failed")
+
+		define.Logger.Info("installed command", map[string]interface{}{
+			"name":     simpleCmdFlag.name,
+			"version":  simpleCmdFlag.version,
+			"location": simpleCmdFlag.location,
+		})
 	},
 }
 
diff --git a/cmd/command/list.go b/cmd/command/list.go
index 6ecb6e3..d31b1c4 100644
--- a/cmd/command/list.go
+++ b/cmd/command/list.go
@@ -9,9 +9,6 @@ import (
 )
 
 var listCmdFlag struct {
-	name      string
-	version   string
-	location  string
 	activated bool
 }
 
@@ -23,7 +20,7 @@ var listCmd = &cobra.Command{
 		runner := core.NewStepRunner(
 			core.NewDBClientMaker(),
 			core.NewSimpleCommandsQuerier(
-				listCmdFlag.name, listCmdFlag.version, listCmdFlag.location, listCmdFlag.activated,
+				simpleCmdFlag.name, simpleCmdFlag.version, simpleCmdFlag.location, listCmdFlag.activated,
 			),
 			core.NewCommandPrinter(),
 		)
@@ -40,7 +37,7 @@ func init() {
 	Cmd.AddCommand(listCmd)
 
 	flags := listCmd.Flags()
-	flags.StringVarP(&listCmdFlag.name, "name", "n", "", "command name")
-	flags.StringVarP(&listCmdFlag.version, "version", "v", "", "command version")
-	flags.StringVarP(&listCmdFlag.location, "location", "l", "", "command location")
+	flags.StringVarP(&simpleCmdFlag.name, "name", "n", "", "command name")
+	flags.StringVarP(&simpleCmdFlag.version, "version", "v", "", "command version")
+	flags.StringVarP(&simpleCmdFlag.location, "location", "l", "", "command location")
 }
diff --git a/cmd/command/uninstall.go b/cmd/command/uninstall.go
index 6e2e9ca..4fd0d1f 100644
--- a/cmd/command/uninstall.go
+++ b/cmd/command/uninstall.go
@@ -26,6 +26,12 @@ var uninstallCmd = &cobra.Command{
 			define.ContextKeyName:    simpleCmdFlag.name,
 			define.ContextKeyVersion: simpleCmdFlag.version,
 		})), "list failed")
+
+		define.Logger.Info("uninstalled command", map[string]interface{}{
+			"name":     simpleCmdFlag.name,
+			"version":  simpleCmdFlag.version,
+			"location": simpleCmdFlag.location,
+		})
 	},
 }
 
diff --git a/cmd/command/unset.go b/cmd/command/unset.go
index 310d2df..5aa90df 100644
--- a/cmd/command/unset.go
+++ b/cmd/command/unset.go
@@ -21,6 +21,10 @@ var unsetCmd = &cobra.Command{
 		utils.ExitWithError(runner.Run(utils.SetIntoContext(cmd.Context(), map[define.ContextKey]interface{}{
 			define.ContextKeyName: simpleCmdFlag.name,
 		})), "deactivate failed")
+
+		define.Logger.Info("unset command", map[string]interface{}{
+			"name": simpleCmdFlag.name,
+		})
 	},
 }
 
diff --git a/cmd/command/use.go b/cmd/command/use.go
index d7473af..67f4ba3 100644
--- a/cmd/command/use.go
+++ b/cmd/command/use.go
@@ -26,6 +26,11 @@ var useCmd = &cobra.Command{
 			define.ContextKeyVersion:  simpleCmdFlag.version,
 			define.ContextKeyLocation: simpleCmdFlag.location,
 		})), "activate failed")
+
+		define.Logger.Info("used command", map[string]interface{}{
+			"name":    simpleCmdFlag.name,
+			"version": simpleCmdFlag.version,
+		})
 	},
 }
 
diff --git a/core/step.go b/core/step.go
index bd175dc..4bd8397 100644
--- a/core/step.go
+++ b/core/step.go
@@ -55,7 +55,7 @@ func (r *StepRunner) Run(ctx context.Context) (err error) {
 		}
 
 		defer func(step Steper) {
-			logger.Info("step finished", map[string]interface{}{
+			logger.Debug("step finished", map[string]interface{}{
 				"step": step,
 			})