1 files changed, 27 insertions, 1 deletions
diff --git a/packages/core/src/utils/editor.ts b/packages/core/src/utils/editor.ts
index 4d09e3a9..15c970d0 100644
--- a/packages/core/src/utils/editor.ts
+++ b/packages/core/src/utils/editor.ts
@@ -8,6 +8,10 @@ import { execSync, spawn } from 'child_process';
 
 export type EditorType = 'vscode' | 'windsurf' | 'cursor' | 'vim';
 
+function isValidEditorType(editor: string): editor is EditorType {
+  return ['vscode', 'windsurf', 'cursor', 'vim'].includes(editor);
+}
+
 interface DiffCommand {
   command: string;
   args: string[];
@@ -32,13 +36,35 @@ const editorCommands: Record<EditorType, { win32: string; default: string }> = {
   vim: { win32: 'vim', default: 'vim' },
 };
 
-export function checkHasEditor(editor: EditorType): boolean {
+export function checkHasEditorType(editor: EditorType): boolean {
   const commandConfig = editorCommands[editor];
   const command =
     process.platform === 'win32' ? commandConfig.win32 : commandConfig.default;
   return commandExists(command);
 }
 
+export function allowEditorTypeInSandbox(editor: EditorType): boolean {
+  const notUsingSandbox = !process.env.SANDBOX;
+  if (['vscode', 'windsurf', 'cursor'].includes(editor)) {
+    return notUsingSandbox;
+  }
+  return true;
+}
+
+/**
+ * Check if the editor is valid and can be used.
+ * Returns false if preferred editor is not set / invalid / not available / not allowed in sandbox.
+ */
+export function isEditorAvailable(editor: string | undefined): boolean {
+  if (editor && isValidEditorType(editor)) {
+    return (
+      checkHasEditorType(editor as EditorType) &&
+      allowEditorTypeInSandbox(editor as EditorType)
+    );
+  }
+  return false;
+}
+
 /**
  * Get the diff command for a specific editor.
  */