From 9d5abc6354607a47a23c1603a2c6527937986d53 Mon Sep 17 00:00:00 2001
From: Ayush Ojha <ayushozha@outlook.com>
Date: Fri, 30 Jan 2026 05:15:33 -0800
Subject: [PATCH] fix: use shell mode on Windows for command spawning

On Windows, spawn("npm", [...]) fails with ENOENT because Windows
requires .cmd/.exe extensions or shell-based PATH resolution.
Adding shell: true on Windows enables proper PATH lookup for npm
and other commands spawned via runCommandWithTimeout.

Fixes #4557

Co-Authored-By: Ayush Ojha <ayushozha@outlook.com>
---
 src/process/exec.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/process/exec.ts b/src/process/exec.ts
index 44f8b2ce0..d8b4f48de 100644
--- a/src/process/exec.ts
+++ b/src/process/exec.ts
@@ -80,11 +80,13 @@ export async function runCommandWithTimeout(
   }
 
   const stdio = resolveCommandStdio({ hasInput, preferInherit: true });
+  const isWindows = process.platform === "win32";
   const child = spawn(argv[0], argv.slice(1), {
     stdio,
     cwd,
     env: resolvedEnv,
     windowsVerbatimArguments,
+    shell: isWindows,
   });
   // Spawn with inherited stdin (TTY) so tools like `pi` stay interactive when needed.
   return await new Promise((resolve, reject) => {