diff --git a/cmd/commands/activate.go b/cmd/commands/activate.go
index c5ccdda0..5a38a5ea 100644
--- a/cmd/commands/activate.go
+++ b/cmd/commands/activate.go
@@ -18,12 +18,12 @@ package commands
 
 import (
 	"fmt"
+	"github.com/version-fox/vfox/internal"
 	"strings"
 	"text/template"
 
 	"github.com/urfave/cli/v2"
 	"github.com/version-fox/vfox/internal/env"
-	"github.com/version-fox/vfox/internal/sdk"
 	"github.com/version-fox/vfox/internal/shell"
 )
 
@@ -38,7 +38,7 @@ func activateCmd(ctx *cli.Context) error {
 	if name == "" {
 		return cli.Exit("shell name is required", 1)
 	}
-	manager := sdk.NewSdkManager(sdk.GlobalRecordSource, sdk.ProjectRecordSource)
+	manager := internal.NewSdkManager(internal.GlobalRecordSource, internal.ProjectRecordSource)
 	defer manager.Record.Save()
 	defer manager.Close()
 	envKeys := manager.EnvKeys()
diff --git a/cmd/commands/add.go b/cmd/commands/add.go
index cc9f7f7d..5018bb4d 100644
--- a/cmd/commands/add.go
+++ b/cmd/commands/add.go
@@ -18,7 +18,7 @@ package commands
 
 import (
 	"github.com/urfave/cli/v2"
-	"github.com/version-fox/vfox/internal/sdk"
+	"github.com/version-fox/vfox/internal"
 )
 
 var Add = &cli.Command{
@@ -39,7 +39,7 @@ var Add = &cli.Command{
 }
 
 func addCmd(ctx *cli.Context) error {
-	manager := sdk.NewSdkManagerWithSource()
+	manager := internal.NewSdkManagerWithSource()
 	defer manager.Close()
 	sdkName := ctx.Args().First()
 	source := ctx.String("source")
diff --git a/cmd/commands/available.go b/cmd/commands/available.go
index 1a1745ea..f3ed9faa 100644
--- a/cmd/commands/available.go
+++ b/cmd/commands/available.go
@@ -19,7 +19,7 @@ package commands
 import (
 	"github.com/pterm/pterm"
 	"github.com/urfave/cli/v2"
-	"github.com/version-fox/vfox/internal/sdk"
+	"github.com/version-fox/vfox/internal"
 )
 
 var Available = &cli.Command{
@@ -29,7 +29,7 @@ var Available = &cli.Command{
 }
 
 func availableCmd(ctx *cli.Context) error {
-	manager := sdk.NewSdkManagerWithSource()
+	manager := internal.NewSdkManagerWithSource()
 	defer manager.Close()
 	categoryName := ctx.Args().First()
 	categories, err := manager.Available()
diff --git a/cmd/commands/current.go b/cmd/commands/current.go
index b7ba54a8..6d6807d9 100644
--- a/cmd/commands/current.go
+++ b/cmd/commands/current.go
@@ -20,7 +20,7 @@ import (
 	"fmt"
 	"github.com/pterm/pterm"
 	"github.com/urfave/cli/v2"
-	"github.com/version-fox/vfox/internal/sdk"
+	"github.com/version-fox/vfox/internal"
 )
 
 var Current = &cli.Command{
@@ -32,7 +32,7 @@ var Current = &cli.Command{
 }
 
 func currentCmd(ctx *cli.Context) error {
-	manager := sdk.NewSdkManager()
+	manager := internal.NewSdkManager()
 	defer manager.Close()
 	sdkName := ctx.Args().First()
 	if sdkName == "" {
diff --git a/cmd/commands/env.go b/cmd/commands/env.go
index 400528d5..84c8fe61 100644
--- a/cmd/commands/env.go
+++ b/cmd/commands/env.go
@@ -18,10 +18,10 @@ package commands
 
 import (
 	"fmt"
+	"github.com/version-fox/vfox/internal"
 	"os"
 
 	"github.com/urfave/cli/v2"
-	"github.com/version-fox/vfox/internal/sdk"
 	"github.com/version-fox/vfox/internal/shell"
 )
 
@@ -45,9 +45,9 @@ var Env = &cli.Command{
 
 func envCmd(ctx *cli.Context) error {
 	if ctx.IsSet("cleanup") {
-		manager := sdk.NewSdkManager()
+		manager := internal.NewSdkManager()
 		defer manager.Close()
-		temp, err := sdk.NewTemp(manager.PathMeta.TempPath, os.Getppid())
+		temp, err := internal.NewTemp(manager.PathMeta.TempPath, os.Getppid())
 		if err != nil {
 			return err
 		}
@@ -63,7 +63,7 @@ func envCmd(ctx *cli.Context) error {
 		if s == nil {
 			return fmt.Errorf("unknow target shell %s", shellName)
 		}
-		manager := sdk.NewSdkManagerWithSource(sdk.SessionRecordSource, sdk.ProjectRecordSource)
+		manager := internal.NewSdkManagerWithSource(internal.SessionRecordSource, internal.ProjectRecordSource)
 		defer manager.Close()
 		envKeys := manager.EnvKeys()
 		exportStr := s.Export(envKeys)
diff --git a/cmd/commands/info.go b/cmd/commands/info.go
index 4605538c..d07a72e3 100644
--- a/cmd/commands/info.go
+++ b/cmd/commands/info.go
@@ -20,7 +20,7 @@ import (
 	"fmt"
 	"github.com/pterm/pterm"
 	"github.com/urfave/cli/v2"
-	"github.com/version-fox/vfox/internal/sdk"
+	"github.com/version-fox/vfox/internal"
 )
 
 var Info = &cli.Command{
@@ -30,7 +30,7 @@ var Info = &cli.Command{
 }
 
 func infoCmd(ctx *cli.Context) error {
-	manager := sdk.NewSdkManager()
+	manager := internal.NewSdkManager()
 	defer manager.Close()
 	args := ctx.Args().First()
 	if args == "" {
diff --git a/cmd/commands/install.go b/cmd/commands/install.go
index c23d2bbb..9215f3c2 100644
--- a/cmd/commands/install.go
+++ b/cmd/commands/install.go
@@ -19,7 +19,7 @@ package commands
 import (
 	"fmt"
 	"github.com/urfave/cli/v2"
-	"github.com/version-fox/vfox/internal/sdk"
+	"github.com/version-fox/vfox/internal"
 	"strings"
 )
 
@@ -37,16 +37,16 @@ func installCmd(ctx *cli.Context) error {
 	}
 	argArr := strings.Split(sdkArg, "@")
 	argsLen := len(argArr)
-	manager := sdk.NewSdkManager()
+	manager := internal.NewSdkManager()
 	defer manager.Close()
 	if argsLen > 2 {
 		return cli.Exit("sdk version is invalid", 1)
 	} else {
 		var name string
-		var version sdk.Version
+		var version internal.Version
 		if argsLen == 2 {
 			name = strings.ToLower(argArr[0])
-			version = sdk.Version(argArr[1])
+			version = internal.Version(argArr[1])
 		} else {
 			name = strings.ToLower(argArr[0])
 			version = ""
diff --git a/cmd/commands/list.go b/cmd/commands/list.go
index 4d079aef..19db4182 100644
--- a/cmd/commands/list.go
+++ b/cmd/commands/list.go
@@ -21,7 +21,7 @@ import (
 	"github.com/pterm/pterm"
 	"github.com/pterm/pterm/putils"
 	"github.com/urfave/cli/v2"
-	"github.com/version-fox/vfox/internal/sdk"
+	"github.com/version-fox/vfox/internal"
 )
 
 var List = &cli.Command{
@@ -32,7 +32,7 @@ var List = &cli.Command{
 }
 
 func listCmd(ctx *cli.Context) error {
-	manager := sdk.NewSdkManager()
+	manager := internal.NewSdkManager()
 	defer manager.Close()
 	sdkName := ctx.Args().First()
 	if sdkName == "" {
diff --git a/cmd/commands/remove.go b/cmd/commands/remove.go
index 63a316d2..03d402a3 100644
--- a/cmd/commands/remove.go
+++ b/cmd/commands/remove.go
@@ -19,7 +19,7 @@ package commands
 import (
 	"github.com/pterm/pterm"
 	"github.com/urfave/cli/v2"
-	"github.com/version-fox/vfox/internal/sdk"
+	"github.com/version-fox/vfox/internal"
 )
 
 var Remove = &cli.Command{
@@ -34,7 +34,7 @@ func removeCmd(ctx *cli.Context) error {
 	if l < 1 {
 		return cli.Exit("invalid arguments", 1)
 	}
-	manager := sdk.NewSdkManager()
+	manager := internal.NewSdkManager()
 	defer manager.Close()
 	pterm.Println("Removing this plugin will remove the installed sdk along with the plugin.")
 	result, _ := pterm.DefaultInteractiveConfirm.
diff --git a/cmd/commands/search.go b/cmd/commands/search.go
index 7ad5e765..68d3ad7f 100644
--- a/cmd/commands/search.go
+++ b/cmd/commands/search.go
@@ -19,8 +19,8 @@ package commands
 import (
 	"fmt"
 	"github.com/urfave/cli/v2"
+	"github.com/version-fox/vfox/internal"
 	"github.com/version-fox/vfox/internal/printer"
-	"github.com/version-fox/vfox/internal/sdk"
 	"strings"
 )
 
@@ -35,7 +35,7 @@ func searchCmd(ctx *cli.Context) error {
 	if sdkName == "" {
 		return cli.Exit("sdk name is required", 1)
 	}
-	manager := sdk.NewSdkManager()
+	manager := internal.NewSdkManager()
 	defer manager.Close()
 	source, err := manager.LookupSdk(sdkName)
 	if err != nil {
@@ -90,5 +90,5 @@ func searchCmd(ctx *cli.Context) error {
 	if err != nil {
 		return fmt.Errorf("select version error: %w", err)
 	}
-	return source.Install(sdk.Version(version.Key))
+	return source.Install(internal.Version(version.Key))
 }
diff --git a/cmd/commands/uninstall.go b/cmd/commands/uninstall.go
index 891f841e..1899d6ce 100644
--- a/cmd/commands/uninstall.go
+++ b/cmd/commands/uninstall.go
@@ -20,7 +20,7 @@ import (
 	"fmt"
 	"github.com/pterm/pterm"
 	"github.com/urfave/cli/v2"
-	"github.com/version-fox/vfox/internal/sdk"
+	"github.com/version-fox/vfox/internal"
 	"os"
 	"strings"
 )
@@ -37,7 +37,7 @@ func uninstallCmd(ctx *cli.Context) error {
 	if sdkArg == "" {
 		return cli.Exit("sdk name is required", 1)
 	}
-	manager := sdk.NewSdkManagerWithSource(sdk.SessionRecordSource, sdk.GlobalRecordSource, sdk.ProjectRecordSource)
+	manager := internal.NewSdkManagerWithSource(internal.SessionRecordSource, internal.GlobalRecordSource, internal.ProjectRecordSource)
 	defer manager.Close()
 	argArr := strings.Split(sdkArg, "@")
 	argsLen := len(argArr)
@@ -46,7 +46,7 @@ func uninstallCmd(ctx *cli.Context) error {
 	}
 
 	name := strings.ToLower(argArr[0])
-	version := sdk.Version(argArr[1])
+	version := internal.Version(argArr[1])
 
 	source, err := manager.LookupSdk(name)
 	if err != nil {
@@ -64,7 +64,7 @@ func uninstallCmd(ctx *cli.Context) error {
 	if cv == version {
 		pterm.Println("Auto switch to the other version.")
 		firstVersion := remainVersion[0]
-		return source.Use(firstVersion, sdk.Global)
+		return source.Use(firstVersion, internal.Global)
 	}
 	return nil
 }
diff --git a/cmd/commands/update.go b/cmd/commands/update.go
index 20a9ee6f..fd72dfa6 100644
--- a/cmd/commands/update.go
+++ b/cmd/commands/update.go
@@ -18,7 +18,7 @@ package commands
 
 import (
 	"github.com/urfave/cli/v2"
-	"github.com/version-fox/vfox/internal/sdk"
+	"github.com/version-fox/vfox/internal"
 )
 
 var Update = &cli.Command{
@@ -33,7 +33,7 @@ func updateCmd(ctx *cli.Context) error {
 	if l < 1 {
 		return cli.Exit("invalid arguments", 1)
 	}
-	manager := sdk.NewSdkManager()
+	manager := internal.NewSdkManager()
 	defer manager.Close()
 	return manager.Update(args.First())
 }
diff --git a/cmd/commands/use.go b/cmd/commands/use.go
index ebb488c7..a0052edf 100644
--- a/cmd/commands/use.go
+++ b/cmd/commands/use.go
@@ -18,12 +18,12 @@ package commands
 
 import (
 	"fmt"
+	"github.com/version-fox/vfox/internal"
 	"os"
 	"strings"
 
 	"github.com/pterm/pterm"
 	"github.com/urfave/cli/v2"
-	"github.com/version-fox/vfox/internal/sdk"
 )
 
 var Use = &cli.Command{
@@ -57,7 +57,7 @@ func useCmd(ctx *cli.Context) error {
 	}
 	var (
 		name    string
-		version sdk.Version
+		version internal.Version
 	)
 	argArr := strings.Split(sdkArg, "@")
 	if len(argArr) <= 1 {
@@ -65,22 +65,22 @@ func useCmd(ctx *cli.Context) error {
 		version = ""
 	} else {
 		name = argArr[0]
-		version = sdk.Version(argArr[1])
+		version = internal.Version(argArr[1])
 	}
 
-	var recordSources []sdk.RecordSource
-	scope := sdk.Session
+	var recordSources []internal.RecordSource
+	scope := internal.Session
 	if ctx.IsSet("global") {
-		scope = sdk.Global
-		recordSources = append(recordSources, sdk.SessionRecordSource, sdk.GlobalRecordSource)
+		scope = internal.Global
+		recordSources = append(recordSources, internal.SessionRecordSource, internal.GlobalRecordSource)
 	} else if ctx.IsSet("project") {
-		scope = sdk.Project
-		recordSources = append(recordSources, sdk.ProjectRecordSource)
+		scope = internal.Project
+		recordSources = append(recordSources, internal.ProjectRecordSource)
 	} else {
-		scope = sdk.Session
-		recordSources = append(recordSources, sdk.SessionRecordSource)
+		scope = internal.Session
+		recordSources = append(recordSources, internal.SessionRecordSource)
 	}
-	manager := sdk.NewSdkManagerWithSource(recordSources...)
+	manager := internal.NewSdkManagerWithSource(recordSources...)
 	defer manager.Close()
 
 	source, err := manager.LookupSdk(name)
@@ -107,7 +107,7 @@ func useCmd(ctx *cli.Context) error {
 			},
 		}
 		result, _ := selectPrinter.Show(fmt.Sprintf("Please select a version of %s", name))
-		version = sdk.Version(result)
+		version = internal.Version(result)
 	}
 	return source.Use(version, scope)
 }
diff --git a/internal/sdk/checksum.go b/internal/checksum.go
similarity index 98%
rename from internal/sdk/checksum.go
rename to internal/checksum.go
index d903e05d..dc06e497 100644
--- a/internal/sdk/checksum.go
+++ b/internal/checksum.go
@@ -14,7 +14,7 @@
  *    limitations under the License.
  */
 
-package sdk
+package internal
 
 import (
 	"crypto/md5"
diff --git a/internal/sdk/manager.go b/internal/manager.go
similarity index 99%
rename from internal/sdk/manager.go
rename to internal/manager.go
index 1f6cf964..9b3149b2 100644
--- a/internal/sdk/manager.go
+++ b/internal/manager.go
@@ -14,7 +14,7 @@
  *    limitations under the License.
  */
 
-package sdk
+package internal
 
 import (
 	"encoding/json"
diff --git a/internal/sdk/path.go b/internal/path.go
similarity index 99%
rename from internal/sdk/path.go
rename to internal/path.go
index 0c6b98a0..1b6e802d 100644
--- a/internal/sdk/path.go
+++ b/internal/path.go
@@ -14,7 +14,7 @@
  *    limitations under the License.
  */
 
-package sdk
+package internal
 
 import (
 	"fmt"
diff --git a/internal/sdk/plugin.go b/internal/plugin.go
similarity index 99%
rename from internal/sdk/plugin.go
rename to internal/plugin.go
index 2157243f..c9f6a76b 100644
--- a/internal/sdk/plugin.go
+++ b/internal/plugin.go
@@ -14,7 +14,7 @@
  *    limitations under the License.
  */
 
-package sdk
+package internal
 
 import (
 	"fmt"
diff --git a/internal/sdk/repository.go b/internal/repository.go
similarity index 98%
rename from internal/sdk/repository.go
rename to internal/repository.go
index 266db4c6..ee1df331 100644
--- a/internal/sdk/repository.go
+++ b/internal/repository.go
@@ -14,7 +14,7 @@
  *    limitations under the License.
  */
 
-package sdk
+package internal
 
 type RemotePluginInfo struct {
 	Filename string `json:"name"`
diff --git a/internal/sdk/scope.go b/internal/scope.go
similarity index 97%
rename from internal/sdk/scope.go
rename to internal/scope.go
index 0ccf72fc..ec7d10d6 100644
--- a/internal/sdk/scope.go
+++ b/internal/scope.go
@@ -14,7 +14,7 @@
  *    limitations under the License.
  */
 
-package sdk
+package internal
 
 type UseScope int
 
diff --git a/internal/sdk/sdk.go b/internal/sdk.go
similarity index 99%
rename from internal/sdk/sdk.go
rename to internal/sdk.go
index 4c5d1c55..5eab5997 100644
--- a/internal/sdk/sdk.go
+++ b/internal/sdk.go
@@ -14,7 +14,7 @@
  *    limitations under the License.
  */
 
-package sdk
+package internal
 
 import (
 	"errors"
diff --git a/internal/sdk/tmp.go b/internal/tmp.go
similarity index 98%
rename from internal/sdk/tmp.go
rename to internal/tmp.go
index 5b22e7d3..069e6b0d 100644
--- a/internal/sdk/tmp.go
+++ b/internal/tmp.go
@@ -14,7 +14,7 @@
  *    limitations under the License.
  */
 
-package sdk
+package internal
 
 import (
 	"fmt"
diff --git a/internal/sdk/version.go b/internal/version.go
similarity index 98%
rename from internal/sdk/version.go
rename to internal/version.go
index 3d5cd6c1..32e37f8f 100644
--- a/internal/sdk/version.go
+++ b/internal/version.go
@@ -14,7 +14,7 @@
  *    limitations under the License.
  */
 
-package sdk
+package internal
 
 type Package struct {
 	Main       *Info