From d336b324601a72e7eef246c94b485eb9284a1986 Mon Sep 17 00:00:00 2001
From: Stefan Gasser <stefan@stefangasser.com>
Date: Sat, 21 Feb 2026 16:23:19 +0100
Subject: [PATCH] fix: copy skill subdirectories recursively (#175)

copyFileSync crashes with EISDIR when a skill contains subdirectories
like scripts/. Skills support nested folders (scripts/, examples/,
templates/) per the Claude Code spec. Use fs.cpSync to handle the
complete skill structure.
---
 src/container-runner.ts | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/src/container-runner.ts b/src/container-runner.ts
index 0d78caa..6f66708 100644
--- a/src/container-runner.ts
+++ b/src/container-runner.ts
@@ -134,12 +134,7 @@ function buildVolumeMounts(
       const srcDir = path.join(skillsSrc, skillDir);
       if (!fs.statSync(srcDir).isDirectory()) continue;
       const dstDir = path.join(skillsDst, skillDir);
-      fs.mkdirSync(dstDir, { recursive: true });
-      for (const file of fs.readdirSync(srcDir)) {
-        const srcFile = path.join(srcDir, file);
-        const dstFile = path.join(dstDir, file);
-        fs.copyFileSync(srcFile, dstFile);
-      }
+      fs.cpSync(srcDir, dstDir, { recursive: true });
     }
   }
   mounts.push({