From 08b1d8377d29eb1bbc5198f7b0e3492897b28667 Mon Sep 17 00:00:00 2001
From: Jeremy McSpadden <jeremy@fluxlabs.net>
Date: Fri, 17 Apr 2026 16:03:25 -0500
Subject: [PATCH] fix(install): error on mutually exclusive --sdk and --no-sdk
 flags

Previously passing both silently had --no-sdk win. Exit non-zero with
a clear error to match how other exclusive flag pairs (--global/--local,
--config-dir/--local) are handled.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---
 bin/install.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/bin/install.js b/bin/install.js
index b36891223..3e953904e 100755
--- a/bin/install.js
+++ b/bin/install.js
@@ -80,6 +80,11 @@ const hasPortableHooks = args.includes('--portable-hooks') || process.env.GSD_PO
 const hasSdk = args.includes('--sdk');
 const hasNoSdk = args.includes('--no-sdk');
 
+if (hasSdk && hasNoSdk) {
+  console.error(`  ${yellow}Cannot specify both --sdk and --no-sdk${reset}`);
+  process.exit(1);
+}
+
 // Runtime selection - can be set by flags or interactive prompt
 let selectedRuntimes = [];
 if (hasAll) {