diff --git a/Casks/harness-sync.rb b/Casks/harness-sync.rb
new file mode 100644
index 0000000..84a43d3
--- /dev/null
+++ b/Casks/harness-sync.rb
@@ -0,0 +1,46 @@
+# This file was generated by GoReleaser. DO NOT EDIT.
+cask "harness-sync" do
+  version "0.22.1"
+
+  on_macos do
+    on_intel do
+      sha256 "d037329ea035c4eced8c152b2e89552087b4f30a08ee5fa5cd566a32a5b64365"
+      url "https://github.com/lukaszraczylo/harness-sync/releases/download/v#{version}/harness-sync-darwin-amd64.tar.gz"
+    end
+    on_arm do
+      sha256 "f3393c94e419448197699df78334ea7d42d8ff4416d97fee014b353f6f198c2c"
+      url "https://github.com/lukaszraczylo/harness-sync/releases/download/v#{version}/harness-sync-darwin-arm64.tar.gz"
+    end
+  end
+
+  on_linux do
+    on_intel do
+      sha256 "a0e500eb52b32a392dc12a8fbd26b10b2a0bc892c7a059c05870e652242a2fc1"
+      url "https://github.com/lukaszraczylo/harness-sync/releases/download/v#{version}/harness-sync-linux-amd64.tar.gz"
+    end
+    on_arm do
+      sha256 "8d0c184bfa851390404be39f1f8ae191c189be5284221cf566e1a1bdf76ad104"
+      url "https://github.com/lukaszraczylo/harness-sync/releases/download/v#{version}/harness-sync-linux-arm64.tar.gz"
+    end
+  end
+
+  name "harness-sync"
+  desc "Sync skills, agents, MCP, and LLM endpoints across multiple LLM harnesses"
+  homepage "https://github.com/lukaszraczylo/harness-sync"
+
+  livecheck do
+    skip "Auto-generated on release."
+  end
+
+  binary "harness-sync"
+
+  postflight do
+    if OS.mac?
+      system_command "/usr/bin/xattr",
+                     args: ["-dr", "com.apple.quarantine", "#{staged_path}/harness-sync"]
+    end
+  end
+
+  # No zap stanza required
+
+end