diff --git a/scripts/check-protected-deletions.mjs b/scripts/check-protected-deletions.mjs
index 339578dce..5a7fa05ce 100644
--- a/scripts/check-protected-deletions.mjs
+++ b/scripts/check-protected-deletions.mjs
@@ -1,8 +1,16 @@
 #!/usr/bin/env node
 import { execFileSync } from "node:child_process";
+import { existsSync } from "node:fs";
 
 const PROTECTED_PATHS = [":(glob)src/resources/extensions/**/*.d.ts"];
 
+if (!existsSync(".git")) {
+	process.stdout.write(
+		"check-protected-deletions: skipped outside git worktree\n",
+	);
+	process.exit(0);
+}
+
 function git(args) {
 	return execFileSync("git", args, {
 		stdio: ["ignore", "pipe", "pipe"],