feat(kubevirt): Add basic VM management toolset

.gitignore

@@ -27,3 +27,7 @@ python/build/
 python/dist/
 python/kubernetes_mcp_server.egg-info/
 !python/kubernetes-mcp-server
+
+.gevals-step*
+gevals-kubevirt-vm-operations-out.json
+.gemini

internal/tools/update-readme/main.go

@@ -15,6 +15,7 @@ import (
 	_ "github.com/containers/kubernetes-mcp-server/pkg/toolsets/config"
 	_ "github.com/containers/kubernetes-mcp-server/pkg/toolsets/core"
 	_ "github.com/containers/kubernetes-mcp-server/pkg/toolsets/helm"
+	_ "github.com/containers/kubernetes-mcp-server/pkg/toolsets/kubevirt"
 )
 
 type OpenShift struct{}

pkg/api/toolsets.go

@@ -3,6 +3,7 @@ package api
 import (
 	"context"
 	"encoding/json"
+	"fmt"
 
 	internalk8s "github.com/containers/kubernetes-mcp-server/pkg/kubernetes"
 	"github.com/containers/kubernetes-mcp-server/pkg/output"
@@ -69,6 +70,58 @@ type ToolHandlerParams struct {
 	ListOutput output.Output
 }
 
+// GetRequiredString extracts a required string parameter from the tool call arguments.
+// Returns an error if the parameter is missing or not a string.
+func (p ToolHandlerParams) GetRequiredString(key string) (string, error) {
+	args := p.GetArguments()
+	val, ok := args[key]
+	if !ok {
+		return "", fmt.Errorf("%s parameter required", key)
+	}
+	str, ok := val.(string)
+	if !ok {
+		return "", fmt.Errorf("%s parameter must be a string", key)
+	}
+	return str, nil
+}
+
+// GetOptionalString extracts an optional string parameter from the tool call arguments.
+// Returns the provided default value if the parameter is missing or not a string.
+// If no default value is provided, returns an empty string.
+func (p ToolHandlerParams) GetOptionalString(key string, defaultValue ...string) string {
+	args := p.GetArguments()
+	val, ok := args[key]
+	if !ok {
+		if len(defaultValue) > 0 {
+			return defaultValue[0]
+		}
+		return ""
+	}
+	str, ok := val.(string)
+	if !ok {
+		if len(defaultValue) > 0 {
+			return defaultValue[0]
+		}
+		return ""
+	}
+	return str
+}
+
+// GetOptionalBool extracts an optional boolean parameter from the tool call arguments.
+// Returns false if the parameter is missing or not a boolean.
+func (p ToolHandlerParams) GetOptionalBool(key string) bool {
+	args := p.GetArguments()
+	val, ok := args[key]
+	if !ok {
+		return false
+	}
+	b, ok := val.(bool)
+	if !ok {
+		return false
+	}
+	return b
+}
+
 type ToolHandlerFunc func(params ToolHandlerParams) (*ToolCallResult, error)
 
 type Tool struct {

pkg/kubernetes-mcp-server/cmd/root_test.go

@@ -137,7 +137,7 @@ func TestToolsets(t *testing.T) {
 		rootCmd := NewMCPServer(ioStreams)
 		rootCmd.SetArgs([]string{"--help"})
 		o, err := captureOutput(rootCmd.Execute) // --help doesn't use logger/klog, cobra prints directly to stdout
-		if !strings.Contains(o, "Comma-separated list of MCP toolsets to use (available toolsets: config, core, helm).") {
+		if !strings.Contains(o, "Comma-separated list of MCP toolsets to use (available toolsets: config, core, helm, kubevirt).") {
 			t.Fatalf("Expected all available toolsets, got %s %v", o, err)
 		}
 	})

pkg/kubernetes/kubernetes.go

@@ -2,6 +2,7 @@ package kubernetes
 
 import (
 	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/client-go/rest"
 
 	"github.com/containers/kubernetes-mcp-server/pkg/helm"
 	"k8s.io/client-go/kubernetes/scheme"
@@ -30,6 +31,14 @@ func (k *Kubernetes) AccessControlClientset() *AccessControlClientset {
 	return k.manager.accessControlClientSet
 }
 
+// RESTConfig returns the Kubernetes REST configuration
+func (k *Kubernetes) RESTConfig() *rest.Config {
+	if k.manager == nil {
+		return nil
+	}
+	return k.manager.cfg
+}
+
 var Scheme = scheme.Scheme
 var ParameterCodec = runtime.NewParameterCodec(Scheme)
 

pkg/mcp/modules.go

@@ -3,3 +3,4 @@ package mcp
 import _ "github.com/containers/kubernetes-mcp-server/pkg/toolsets/config"
 import _ "github.com/containers/kubernetes-mcp-server/pkg/toolsets/core"
 import _ "github.com/containers/kubernetes-mcp-server/pkg/toolsets/helm"
+import _ "github.com/containers/kubernetes-mcp-server/pkg/toolsets/kubevirt"