From 23298685f0aa1a587cf599037622d4ceec736fe8 Mon Sep 17 00:00:00 2001
From: KoNit-K <konit.block@protonmail.com>
Date: Mon, 14 Sep 2026 06:31:04 +0800
Subject: [PATCH] fix(install): reject broken copied uv shims

---
 scripts/install.ps1 | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/scripts/install.ps1 b/scripts/install.ps1
index 7294bc2051..61fb60e827 100644
--- a/scripts/install.ps1
+++ b/scripts/install.ps1
@@ -840,10 +840,14 @@ function Install-Uv {
             if ($existingUv) {
                 Write-Info "Salvaging existing uv from $existingUv"
                 try {
-                    Copy-Item $existingUv $managedUv -Force
                     # Verify the salvaged binary actually runs before
                     # trusting it as the managed uv.
-                    $null = & $managedUv --version
+                    Copy-Item $existingUv $managedUv -Force
+                    $salvagedVersion = & $managedUv --version
+                    if ($LASTEXITCODE -ne 0) {
+                        Write-Info "Copied uv at $managedUv failed validation; continuing fallback"
+                        Remove-Item $managedUv -Force -ErrorAction SilentlyContinue
+                    }
                 } catch {
                     Write-Info "Existing uv at $existingUv could not be salvaged: $_"
                     Remove-Item $managedUv -Force -ErrorAction SilentlyContinue