From b4e25cdba0708b1b2a4aacbd499ec3ff21871c8c Mon Sep 17 00:00:00 2001
From: Malte Ubl <malte@vercel.com>
Date: Sat, 17 Oct 2026 21:01:15 -0700
Subject: [PATCH] Leave an @types twin with no runtime package to the
 declaration bar in transitive selection

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---
 packages/compiler/src/frontend/pipeline.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/compiler/src/frontend/pipeline.ts b/packages/compiler/src/frontend/pipeline.ts
index 20df75c9b..c769ed99e 100644
--- a/packages/compiler/src/frontend/pipeline.ts
+++ b/packages/compiler/src/frontend/pipeline.ts
@@ -214,7 +214,9 @@ function detectAutoPackages(
         continue;
       }
       if (judged?.has(npm.packageName)) continue;
-      if (viaTransitive) {
+      // An @types twin with no runtime package installed has nothing to
+      // compile (Node cannot load it either).
+      if (viaTransitive && !npm.packageName.startsWith("@types/")) {
         judged!.add(npm.packageName);
         sites!.set(npm.packageName, loc);
         transitive.add(npm.packageName);