diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index 2fe92c5d8..97e6ac9b1 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -70,6 +70,13 @@ jobs:
       windows_pre_build_command: . .github\workflows\scripts\windows\setup.ps1
       windows_build_command: Invoke-Program scripts\test_windows.ps1
       enable_windows_docker: false
+      # macOS
+      enable_macos_checks: true
+      macos_env_vars: |
+        CI=1
+        FAST_TEST_RUN=${{ contains(github.event.pull_request.labels.*.name, 'full-test-run') && '0' || '1'}}
+      macos_pre_build_command: . .github/workflows/scripts/setup-macos.sh
+      macos_build_command: ./scripts/test_macos.sh
 
   soundness:
     name: Soundness
diff --git a/.github/workflows/scripts/setup-macos.sh b/.github/workflows/scripts/setup-macos.sh
new file mode 100755
index 000000000..5bad64c80
--- /dev/null
+++ b/.github/workflows/scripts/setup-macos.sh
@@ -0,0 +1,33 @@
+#!/bin/bash
+##===----------------------------------------------------------------------===##
+##
+## This source file is part of the VS Code Swift open source project
+##
+## Copyright (c) 2025 the VS Code Swift project authors
+## Licensed under Apache License v2.0
+##
+## See LICENSE.txt for license information
+## See CONTRIBUTORS.txt for the list of VS Code Swift project authors
+##
+## SPDX-License-Identifier: Apache-2.0
+##
+##===----------------------------------------------------------------------===##
+
+export NODE_VERSION=v20.19.0
+export NVM_DIR="$RUNNER_TEMP/.nvm"
+export NODE_PATH="$NVM_DIR/versions/node/v20.19.0/bin"
+
+mkdir -p "$NVM_DIR"
+curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.7/install.sh | bash
+# shellcheck disable=SC1091
+. "$NVM_DIR/nvm.sh" && nvm install $NODE_VERSION
+echo "$NODE_PATH" >> "$GITHUB_PATH"
+
+env | sort
+
+if [ -n "$VSCODE_SWIFT_VSIX_ID" ]; then
+    npm ci --ignore-scripts
+    npx tsx scripts/download_vsix.ts
+fi
+
+automationmodetool
\ No newline at end of file
diff --git a/scripts/test_macos.sh b/scripts/test_macos.sh
new file mode 100755
index 000000000..ace4cc650
--- /dev/null
+++ b/scripts/test_macos.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+##===----------------------------------------------------------------------===##
+##
+## This source file is part of the VS Code Swift open source project
+##
+## Copyright (c) 2025 the VS Code Swift project authors
+## Licensed under Apache License v2.0
+##
+## See LICENSE.txt for license information
+## See CONTRIBUTORS.txt for the list of VS Code Swift project authors
+##
+## SPDX-License-Identifier: Apache-2.0
+##
+##===----------------------------------------------------------------------===##
+
+set -ex
+
+export NODE_OPTIONS="--dns-result-order=ipv4first"
+export npm_config_http_proxy="$HTTP_PROXY"
+export npm_config_https_proxy="$HTTPS_PROXY"
+export VSCODE_DATA_DIR="$RUNNER_TEMP/ud"
+
+automationmodetool
+
+npm ci -ignore-script node-pty
+npm run lint
+npm run format
+npm run coverage
+
+exit "$?"