From 7beef8b1229ee8daaf679e99af17f9a464937e9d Mon Sep 17 00:00:00 2001
From: Nic Polumeyv <162764842+Nic-Polumeyv@users.noreply.github.com>
Date: Sun, 20 Sep 2026 22:54:08 -0400
Subject: [PATCH 1/4] chore: pass secrets to the platform test workflows again

---
 .github/workflows/platform-tests-all.yml     | 3 +++
 .github/workflows/platform-tests-netlify.yml | 4 ++++
 .github/workflows/platform-tests-vercel.yml  | 2 ++
 3 files changed, 9 insertions(+)

diff --git a/.github/workflows/platform-tests-all.yml b/.github/workflows/platform-tests-all.yml
index 944b3a2a9c64..3b54b30aac21 100644
--- a/.github/workflows/platform-tests-all.yml
+++ b/.github/workflows/platform-tests-all.yml
@@ -16,16 +16,19 @@ jobs:
     uses: ./.github/workflows/platform-tests-vercel.yml
     with:
       sha: ${{ inputs.sha }}
+    secrets: inherit
 
   netlify:
     uses: ./.github/workflows/platform-tests-netlify.yml
     with:
       sha: ${{ inputs.sha }}
+    secrets: inherit
 
   node:
     uses: ./.github/workflows/platform-tests-node.yml
     with:
       sha: ${{ inputs.sha }}
+    secrets: inherit
 
   report-status:
     if: always()
diff --git a/.github/workflows/platform-tests-netlify.yml b/.github/workflows/platform-tests-netlify.yml
index 820077177bdd..f6246488a7ae 100644
--- a/.github/workflows/platform-tests-netlify.yml
+++ b/.github/workflows/platform-tests-netlify.yml
@@ -26,6 +26,7 @@ jobs:
       sha: ${{ inputs.sha || github.sha }}
       variant: basic
       test-app-dir: packages/adapter-netlify/test/apps/basic
+    secrets: inherit
 
   edge:
     if: github.repository == 'sveltejs/kit'
@@ -34,6 +35,7 @@ jobs:
       sha: ${{ inputs.sha || github.sha }}
       variant: edge
       test-app-dir: packages/adapter-netlify/test/apps/edge
+    secrets: inherit
 
   split:
     if: github.repository == 'sveltejs/kit'
@@ -42,6 +44,7 @@ jobs:
       sha: ${{ inputs.sha || github.sha }}
       variant: split
       test-app-dir: packages/adapter-netlify/test/apps/split
+    secrets: inherit
 
   split-edge:
     if: github.repository == 'sveltejs/kit'
@@ -51,3 +54,4 @@ jobs:
       variant: split-edge
       test-app-dir: packages/adapter-netlify/test/apps/split
       edge: true
+    secrets: inherit
diff --git a/.github/workflows/platform-tests-vercel.yml b/.github/workflows/platform-tests-vercel.yml
index 8beeeea0082c..ae4e682899cf 100644
--- a/.github/workflows/platform-tests-vercel.yml
+++ b/.github/workflows/platform-tests-vercel.yml
@@ -27,6 +27,7 @@ jobs:
       variant: basic
       test-app-dir: packages/adapter-vercel/test/apps/basic
       purge-cache: true
+    secrets: inherit
 
   split:
     if: github.repository == 'sveltejs/kit'
@@ -35,3 +36,4 @@ jobs:
       sha: ${{ inputs.sha || github.sha }}
       variant: split
       test-app-dir: packages/adapter-vercel/test/apps/split
+    secrets: inherit

From 02e78b3857a07b8eddca57042425e7f7e1100cec Mon Sep 17 00:00:00 2001
From: Nic Polumeyv <162764842+Nic-Polumeyv@users.noreply.github.com>
Date: Sun, 20 Sep 2026 23:15:27 -0400
Subject: [PATCH 2/4] chore: run each platform test variant through one
 reusable workflow

---
 .github/actions/deployment-test/action.yml   |  60 -------
 .github/actions/netlify-deploy/action.yml    |  81 ---------
 .github/actions/node-test/action.yml         |  27 ---
 .github/actions/vercel-deploy/action.yml     |  80 ---------
 .github/workflows/platform-test-netlify.yml  | 113 -------------
 .github/workflows/platform-test-vercel.yml   | 109 ------------
 .github/workflows/platform-test.yml          | 168 +++++++++++++++++++
 .github/workflows/platform-tests-all.yml     | 140 ++++++++++++----
 .github/workflows/platform-tests-netlify.yml |  57 -------
 .github/workflows/platform-tests-node.yml    |  47 ------
 .github/workflows/platform-tests-vercel.yml  |  39 -----
 11 files changed, 272 insertions(+), 649 deletions(-)
 delete mode 100644 .github/actions/deployment-test/action.yml
 delete mode 100644 .github/actions/netlify-deploy/action.yml
 delete mode 100644 .github/actions/node-test/action.yml
 delete mode 100644 .github/actions/vercel-deploy/action.yml
 delete mode 100644 .github/workflows/platform-test-netlify.yml
 delete mode 100644 .github/workflows/platform-test-vercel.yml
 create mode 100644 .github/workflows/platform-test.yml
 delete mode 100644 .github/workflows/platform-tests-netlify.yml
 delete mode 100644 .github/workflows/platform-tests-node.yml
 delete mode 100644 .github/workflows/platform-tests-vercel.yml

diff --git a/.github/actions/deployment-test/action.yml b/.github/actions/deployment-test/action.yml
deleted file mode 100644
index edec7af3ba59..000000000000
--- a/.github/actions/deployment-test/action.yml
+++ /dev/null
@@ -1,60 +0,0 @@
-name: 'Platform Test'
-description: 'Run platform tests against a deployed test app'
-
-inputs:
-  sha:
-    description: 'Commit SHA to test'
-    required: true
-  platform:
-    description: 'Name of the deployment platform'
-    required: true
-  test-app-dir:
-    description: 'Path to the test app directory'
-    required: true
-  variant:
-    description: 'Name of the test app variant'
-    required: true
-
-runs:
-  using: 'composite'
-  steps:
-    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      with:
-        ref: ${{ inputs.sha }}
-        persist-credentials: false
-        path: .target
-
-    - uses: pnpm/setup@703c52620218391530e48b9e8870d5c0082e1b9b # v2.1.0
-      with:
-        runtime: node@24
-        working-directory: .target
-
-    - name: Install Playwright
-      shell: bash
-      working-directory: .target
-      run: pnpm playwright install chromium --no-shell
-
-    - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
-      with:
-        name: platform-${{ inputs.platform }}-${{ inputs.variant }}-deployment-${{ github.run_id }}
-        path: ${{ runner.temp }}/deployment
-
-    - name: Read deployment URL
-      id: deployment
-      shell: bash
-      run: echo "url=$(cat '${{ runner.temp }}/deployment/url')" >> "$GITHUB_OUTPUT"
-
-    - name: Run Playwright tests
-      shell: bash
-      working-directory: .target/${{ inputs.test-app-dir }}
-      env:
-        DEPLOYMENT_URL: ${{ steps.deployment.outputs.url }}
-      run: pnpm test:platform
-
-    - name: Upload test artifacts
-      if: failure()
-      uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
-      with:
-        name: platform-test-results-${{ inputs.platform }}-${{ inputs.variant }}
-        path: .target/${{ inputs.test-app-dir }}/test-results
-        retention-days: 3
diff --git a/.github/actions/netlify-deploy/action.yml b/.github/actions/netlify-deploy/action.yml
deleted file mode 100644
index b411c756565a..000000000000
--- a/.github/actions/netlify-deploy/action.yml
+++ /dev/null
@@ -1,81 +0,0 @@
-name: 'Netlify Deploy'
-description: 'Deploy a prebuilt test app to Netlify'
-
-inputs:
-  variant:
-    description: 'Name of the test app variant'
-    required: true
-  netlify-project-id:
-    description: 'Netlify project ID'
-    required: true
-  netlify-token:
-    description: 'Netlify authentication token'
-    required: true
-outputs:
-  deployment-url:
-    description: 'URL of the deployed preview'
-    value: ${{ steps.deploy.outputs.url }}
-
-runs:
-  using: 'composite'
-  steps:
-    - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
-      with:
-        name: platform-netlify-${{ inputs.variant }}-${{ github.run_id }}
-        path: ${{ runner.temp }}/platform-output
-
-    - uses: pnpm/setup@703c52620218391530e48b9e8870d5c0082e1b9b # v2.1.0
-      with:
-        version: ^12.0.0
-        runtime: node@24
-        cache: true
-        cache-dependency-path: .workflow/pnpm-lock.yaml
-
-    - name: Install Netlify CLI
-      shell: bash
-      run: pnpm i -g netlify-cli --allow-build=esbuild --allow-build=netlify-cli
-
-    - name: Deploy to Netlify
-      id: deploy
-      shell: bash
-      working-directory: ${{ runner.temp }}/platform-output
-      env:
-        NETLIFY_AUTH_TOKEN: ${{ inputs.netlify-token }}
-        NETLIFY_PROJECT_ID: ${{ inputs.netlify-project-id }}
-      run: |
-        set -euo pipefail
-
-        if deploy_json=$(env \
-          -u NETLIFY_AUTH_TOKEN \
-          -u NETLIFY_PROJECT_ID \
-          netlify deploy \
-          --json \
-          --verbose \
-          --no-build \
-          --dir="build" \
-          --functions=".netlify/v1/functions" \
-          --auth="$NETLIFY_AUTH_TOKEN" \
-          --site="$NETLIFY_PROJECT_ID"
-        ); then
-          deploy_url=$(jq -er '.deploy_url' <<< "$deploy_json")
-          echo "url=$deploy_url" >> "$GITHUB_OUTPUT"
-        else
-          echo "::error::Netlify deployment failed"
-          echo "$deploy_json" >&2
-          exit 1
-        fi
-
-    - name: Save deployment URL
-      shell: bash
-      env:
-        DEPLOYMENT_URL: ${{ steps.deploy.outputs.url }}
-      run: |
-        mkdir "${{ runner.temp }}/deployment"
-        printf '%s' "$DEPLOYMENT_URL" > "${{ runner.temp }}/deployment/url"
-
-    - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
-      with:
-        name: platform-netlify-${{ inputs.variant }}-deployment-${{ github.run_id }}
-        path: ${{ runner.temp }}/deployment/url
-        if-no-files-found: error
-        retention-days: 1
diff --git a/.github/actions/node-test/action.yml b/.github/actions/node-test/action.yml
deleted file mode 100644
index 6ffa25206bd0..000000000000
--- a/.github/actions/node-test/action.yml
+++ /dev/null
@@ -1,27 +0,0 @@
-name: 'Platform Test'
-description: 'Run Playwright tests against a local build'
-
-inputs:
-  test-app-dir:
-    description: 'Path to the test app directory'
-    required: true
-
-runs:
-  using: 'composite'
-  steps:
-    - name: Install Playwright
-      shell: bash
-      run: pnpm playwright install chromium --no-shell
-
-    - name: Run Playwright tests
-      shell: bash
-      working-directory: ${{ inputs.test-app-dir }}
-      run: pnpm test:platform
-
-    - name: Upload test artifacts
-      if: failure()
-      uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
-      with:
-        name: platform-test-results-${{ github.job }}
-        path: ${{ inputs.test-app-dir }}/test-results
-        retention-days: 3
diff --git a/.github/actions/vercel-deploy/action.yml b/.github/actions/vercel-deploy/action.yml
deleted file mode 100644
index 31cad370b0f5..000000000000
--- a/.github/actions/vercel-deploy/action.yml
+++ /dev/null
@@ -1,80 +0,0 @@
-name: 'Vercel Deploy'
-description: 'Deploy a prebuilt test app to Vercel'
-
-inputs:
-  variant:
-    description: 'Name of the test app variant'
-    required: true
-  # Important: When setting up a new Vercel test app, make sure
-  # to set the root directory in the dashboard to the correct path.
-  vercel-project-id:
-    description: 'Vercel project ID for the test app'
-    required: true
-  vercel-token:
-    description: 'Vercel authentication token'
-    required: true
-  vercel-org-id:
-    description: 'Vercel organization ID'
-    required: true
-  purge-cache:
-    description: 'Purge the Vercel CDN cache before testing'
-    required: false
-    default: 'false'
-outputs:
-  deployment-url:
-    description: 'URL of the deployed preview'
-    value: ${{ steps.deploy.outputs.url }}
-
-runs:
-  using: 'composite'
-  steps:
-    - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
-      with:
-        name: platform-vercel-${{ inputs.variant }}-${{ github.run_id }}
-        path: ${{ runner.temp }}/platform-output
-
-    - uses: pnpm/setup@703c52620218391530e48b9e8870d5c0082e1b9b # v2.1.0
-      with:
-        version: ^12.0.0
-        runtime: node@24
-        cache: true
-        cache-dependency-path: .workflow/pnpm-lock.yaml
-
-    - name: Install Vercel CLI
-      shell: bash
-      run: pnpm i -g vercel
-
-    - name: Deploy to Vercel
-      id: deploy
-      shell: bash
-      working-directory: ${{ runner.temp }}/platform-output
-      env:
-        VERCEL_TOKEN: ${{ inputs.vercel-token }}
-        VERCEL_ORG_ID: ${{ inputs.vercel-org-id }}
-        VERCEL_PROJECT_ID: ${{ inputs.vercel-project-id }}
-      run: echo "url=$(vercel deploy --prebuilt --yes --token="$VERCEL_TOKEN")" >> "$GITHUB_OUTPUT"
-
-    # avoid stale cache results when testing ISR routes
-    - name: Purge Vercel CDN Cache
-      if: inputs.purge-cache == 'true'
-      shell: bash
-      env:
-        VERCEL_TOKEN: ${{ inputs.vercel-token }}
-        VERCEL_ORG_ID: ${{ inputs.vercel-org-id }}
-        VERCEL_PROJECT_ID: ${{ inputs.vercel-project-id }}
-      run: vercel cache purge --type cdn --token="$VERCEL_TOKEN" --yes
-
-    - name: Save deployment URL
-      shell: bash
-      env:
-        DEPLOYMENT_URL: ${{ steps.deploy.outputs.url }}
-      run: |
-        mkdir "${{ runner.temp }}/deployment"
-        printf '%s' "$DEPLOYMENT_URL" > "${{ runner.temp }}/deployment/url"
-
-    - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
-      with:
-        name: platform-vercel-${{ inputs.variant }}-deployment-${{ github.run_id }}
-        path: ${{ runner.temp }}/deployment/url
-        if-no-files-found: error
-        retention-days: 1
diff --git a/.github/workflows/platform-test-netlify.yml b/.github/workflows/platform-test-netlify.yml
deleted file mode 100644
index 4f7f74f4e1c4..000000000000
--- a/.github/workflows/platform-test-netlify.yml
+++ /dev/null
@@ -1,113 +0,0 @@
-name: Platform Test (Netlify)
-
-on:
-  workflow_call:
-    inputs:
-      sha:
-        description: 'Commit SHA to test'
-        required: true
-        type: string
-      variant:
-        description: 'Name of the test app variant'
-        required: true
-        type: string
-      test-app-dir:
-        description: 'Path to the test app directory'
-        required: true
-        type: string
-      edge:
-        description: 'Build the test app with Netlify Edge Functions'
-        required: false
-        type: boolean
-        default: false
-
-permissions:
-  contents: read
-
-env:
-  PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: '1'
-
-jobs:
-  build:
-    name: ${{ inputs.variant }} build
-    if: github.repository == 'sveltejs/kit'
-    runs-on: ubuntu-latest
-    timeout-minutes: 15
-    steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          ref: ${{ inputs.sha }}
-          persist-credentials: false
-
-      - uses: pnpm/setup@703c52620218391530e48b9e8870d5c0082e1b9b # v2.1.0
-        with:
-          runtime: node@24
-
-      # TODO: version-3 branch has no build command, so remove this step
-      - name: Build adapter
-        run: pnpm --filter @sveltejs/adapter-netlify --if-present build
-
-      - name: Build test app
-        working-directory: ${{ inputs.test-app-dir }}
-        env:
-          EDGE: ${{ inputs.edge }}
-        run: pnpm build
-
-      - name: Stage deployment artifact
-        env:
-          TARGET_DIR: ${{ github.workspace }}/${{ inputs.test-app-dir }}
-        run: |
-          mkdir platform-output
-          cp -a "$TARGET_DIR/build" "$TARGET_DIR/.netlify" platform-output/
-
-      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
-        with:
-          name: platform-netlify-${{ inputs.variant }}-${{ github.run_id }}
-          path: platform-output
-          include-hidden-files: true
-          if-no-files-found: error
-          retention-days: 1
-
-  deploy:
-    name: ${{ inputs.variant }} deploy
-    if: github.repository == 'sveltejs/kit'
-    needs: build
-    runs-on: ubuntu-latest
-    timeout-minutes: 15
-    environment: '@sveltejs/adapter-netlify platform tests'
-    steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          ref: ${{ github.workflow_sha }}
-          persist-credentials: false
-          sparse-checkout: |
-            .github/actions
-            pnpm-lock.yaml
-          path: .workflow
-      - uses: ./.workflow/.github/actions/netlify-deploy
-        with:
-          netlify-project-id: ${{ inputs.variant == 'basic' && secrets.NETLIFY_PROJECT_ID_BASIC || inputs.variant == 'edge' && secrets.NETLIFY_PROJECT_ID_EDGE || inputs.variant == 'instrumentation' && secrets.NETLIFY_PROJECT_ID_INSTRUMENTATION || secrets.NETLIFY_PROJECT_ID_SPLIT }}
-          netlify-token: ${{ secrets.NETLIFY_TOKEN }}
-          variant: ${{ inputs.variant }}
-
-  test:
-    name: ${{ inputs.variant }} test
-    if: github.repository == 'sveltejs/kit'
-    needs: deploy
-    runs-on: ubuntu-latest
-    timeout-minutes: 15
-    steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          ref: ${{ github.workflow_sha }}
-          persist-credentials: false
-          sparse-checkout: |
-            .github/actions
-            pnpm-lock.yaml
-          path: .workflow
-      - uses: ./.workflow/.github/actions/deployment-test
-        with:
-          sha: ${{ inputs.sha }}
-          platform: netlify
-          test-app-dir: ${{ inputs.test-app-dir }}
-          variant: ${{ inputs.variant }}
diff --git a/.github/workflows/platform-test-vercel.yml b/.github/workflows/platform-test-vercel.yml
deleted file mode 100644
index 2fa243c6189b..000000000000
--- a/.github/workflows/platform-test-vercel.yml
+++ /dev/null
@@ -1,109 +0,0 @@
-name: Platform Test (Vercel)
-
-on:
-  workflow_call:
-    inputs:
-      sha:
-        description: 'Commit SHA to test'
-        required: true
-        type: string
-      variant:
-        description: 'Name of the test app variant'
-        required: true
-        type: string
-      test-app-dir:
-        description: 'Path to the test app directory'
-        required: true
-        type: string
-      purge-cache:
-        description: 'Purge the Vercel CDN cache before testing'
-        required: false
-        type: boolean
-        default: false
-
-permissions:
-  contents: read
-
-env:
-  PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: '1'
-
-jobs:
-  build:
-    name: ${{ inputs.variant }} build
-    if: github.repository == 'sveltejs/kit'
-    runs-on: ubuntu-latest
-    timeout-minutes: 15
-    steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          ref: ${{ inputs.sha }}
-          persist-credentials: false
-
-      - uses: pnpm/setup@703c52620218391530e48b9e8870d5c0082e1b9b # v2.1.0
-        with:
-          runtime: node@24
-
-      - name: Build test app
-        working-directory: ${{ inputs.test-app-dir }}
-        run: pnpm build
-
-      - name: Stage deployment artifact
-        env:
-          TARGET_DIR: ${{ github.workspace }}/${{ inputs.test-app-dir }}
-        run: |
-          mkdir platform-output
-          cp -a "$TARGET_DIR/.vercel" platform-output/
-
-      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
-        with:
-          name: platform-vercel-${{ inputs.variant }}-${{ github.run_id }}
-          path: platform-output
-          include-hidden-files: true
-          if-no-files-found: error
-          retention-days: 1
-
-  deploy:
-    name: ${{ inputs.variant }} deploy
-    if: github.repository == 'sveltejs/kit'
-    needs: build
-    runs-on: ubuntu-latest
-    timeout-minutes: 15
-    environment: '@sveltejs/adapter-vercel platform tests'
-    steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          ref: ${{ github.workflow_sha }}
-          persist-credentials: false
-          sparse-checkout: |
-            .github/actions
-            pnpm-lock.yaml
-          path: .workflow
-      - uses: ./.workflow/.github/actions/vercel-deploy
-        with:
-          vercel-project-id: ${{ inputs.variant == 'basic' && secrets.VERCEL_PROJECT_ID_BASIC || secrets.VERCEL_PROJECT_ID_SPLIT }}
-          vercel-token: ${{ secrets.VERCEL_TOKEN }}
-          vercel-org-id: ${{ secrets.VERCEL_ORG_ID }}
-          variant: ${{ inputs.variant }}
-          purge-cache: ${{ inputs.purge-cache }}
-
-  test:
-    name: ${{ inputs.variant }} test
-    if: github.repository == 'sveltejs/kit'
-    needs: deploy
-    runs-on: ubuntu-latest
-    timeout-minutes: 15
-    steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          ref: ${{ github.workflow_sha }}
-          persist-credentials: false
-          sparse-checkout: |
-            .github/actions
-            pnpm-lock.yaml
-          path: .workflow
-      - uses: ./.workflow/.github/actions/deployment-test
-        with:
-          sha: ${{ inputs.sha }}
-          platform: vercel
-          test-app-dir: ${{ inputs.test-app-dir }}
-          variant: ${{ inputs.variant }}
diff --git a/.github/workflows/platform-test.yml b/.github/workflows/platform-test.yml
new file mode 100644
index 000000000000..9c65b8701d90
--- /dev/null
+++ b/.github/workflows/platform-test.yml
@@ -0,0 +1,168 @@
+name: Platform Test
+
+on:
+  workflow_call:
+    inputs:
+      sha:
+        description: 'Commit SHA to test'
+        required: true
+        type: string
+      platform:
+        description: 'netlify or vercel'
+        required: true
+        type: string
+      variant:
+        description: 'Name of the test app variant'
+        required: true
+        type: string
+      app:
+        description: 'Directory of the test app'
+        required: true
+        type: string
+
+permissions:
+  contents: read
+
+env:
+  PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: '1'
+  APP: packages/adapter-${{ inputs.platform }}/test/apps/${{ inputs.app }}
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - &checkout
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          ref: ${{ inputs.sha }}
+          persist-credentials: false
+
+      # reads the pnpm version from the commit under test: `main` is on v10, `version-3` on v12
+      - &pnpm
+        uses: pnpm/action-setup@ea17c68df8912ef543352723c149a84f56e3d413 # v6.1.0
+
+      - &node
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        with:
+          node-version: 24
+
+      - &install
+        name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      # TODO: only adapter-netlify on `main` has a build script, remove this step after the v3 release
+      - name: Build adapter
+        env:
+          PLATFORM: ${{ inputs.platform }}
+        run: pnpm --filter "@sveltejs/adapter-$PLATFORM" --if-present build
+
+      - name: Build test app
+        working-directory: ${{ env.APP }}
+        env:
+          EDGE: ${{ inputs.variant == 'split-edge' }}
+        run: pnpm build
+
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        with:
+          name: ${{ inputs.platform }}-${{ inputs.variant }}
+          # whichever of these the adapter wrote, relative to the test app
+          path: |
+            ${{ env.APP }}/build
+            ${{ env.APP }}/.netlify
+            ${{ env.APP }}/.vercel
+          include-hidden-files: true
+          if-no-files-found: error
+          retention-days: 1
+
+  deploy:
+    needs: build
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    environment: '@sveltejs/adapter-${{ inputs.platform }} platform tests'
+    steps:
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          name: ${{ inputs.platform }}-${{ inputs.variant }}
+
+      - uses: pnpm/setup@703c52620218391530e48b9e8870d5c0082e1b9b # v2.1.0
+        with:
+          version: ^12.0.0
+          runtime: node@24
+
+      - name: Install Netlify CLI
+        if: inputs.platform == 'netlify'
+        run: pnpm i -g netlify-cli --allow-build=esbuild --allow-build=netlify-cli
+
+      # the secrets are passed as flags and scrubbed from the environment the CLI bundles functions in
+      - name: Deploy to Netlify
+        if: inputs.platform == 'netlify'
+        env:
+          NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_TOKEN }}
+          NETLIFY_PROJECT_ID: ${{ inputs.variant == 'basic' && secrets.NETLIFY_PROJECT_ID_BASIC || inputs.variant == 'edge' && secrets.NETLIFY_PROJECT_ID_EDGE || secrets.NETLIFY_PROJECT_ID_SPLIT }}
+        run: |
+          env -u NETLIFY_AUTH_TOKEN -u NETLIFY_PROJECT_ID \
+            netlify deploy --json --no-build --dir=build --functions=.netlify/v1/functions \
+            --auth="$NETLIFY_AUTH_TOKEN" --site="$NETLIFY_PROJECT_ID" \
+            | tee /dev/stderr | jq -er '.deploy_url' > url
+
+      - name: Install Vercel CLI
+        if: inputs.platform == 'vercel'
+        run: pnpm i -g vercel
+
+      # Important: When setting up a new Vercel test app, make sure
+      # to set the root directory in the dashboard to the correct path.
+      - name: Deploy to Vercel
+        if: inputs.platform == 'vercel'
+        env: &vercel-secrets
+          VERCEL_TOKEN: ${{ secrets.VERCEL_TOKEN }}
+          VERCEL_ORG_ID: ${{ secrets.VERCEL_ORG_ID }}
+          VERCEL_PROJECT_ID: ${{ inputs.variant == 'basic' && secrets.VERCEL_PROJECT_ID_BASIC || secrets.VERCEL_PROJECT_ID_SPLIT }}
+        run: vercel deploy --prebuilt --yes --token="$VERCEL_TOKEN" > url
+
+      # avoid stale cache results when testing ISR routes
+      - name: Purge Vercel CDN Cache
+        if: inputs.platform == 'vercel' && inputs.variant == 'basic'
+        env: *vercel-secrets
+        run: vercel cache purge --type cdn --token="$VERCEL_TOKEN" --yes
+
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        with:
+          name: ${{ inputs.platform }}-${{ inputs.variant }}-url
+          path: url
+          if-no-files-found: error
+          retention-days: 1
+
+  test:
+    needs: deploy
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - *checkout
+      - *pnpm
+      - *node
+      - *install
+
+      - name: Install Playwright
+        run: pnpm playwright install chromium --no-shell
+
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          name: ${{ inputs.platform }}-${{ inputs.variant }}-url
+          path: ${{ runner.temp }}
+
+      - name: Run Playwright tests
+        working-directory: ${{ env.APP }}
+        run: DEPLOYMENT_URL=$(cat "$RUNNER_TEMP/url") pnpm test:platform
+
+      - name: Upload test artifacts
+        if: failure()
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        with:
+          name: test-results-${{ inputs.platform }}-${{ inputs.variant }}
+          path: ${{ env.APP }}/test-results
+          retention-days: 3
diff --git a/.github/workflows/platform-tests-all.yml b/.github/workflows/platform-tests-all.yml
index 3b54b30aac21..13bc01dea730 100644
--- a/.github/workflows/platform-tests-all.yml
+++ b/.github/workflows/platform-tests-all.yml
@@ -7,59 +7,127 @@ on:
         description: 'Commit SHA to test and update check status on'
         required: false
         default: ''
+      platform:
+        description: 'Platform to test'
+        type: choice
+        options: [all, netlify, vercel, node]
+        default: all
 
 permissions:
-  contents: write
+  contents: read
+
+env:
+  PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: '1'
 
 jobs:
-  vercel:
-    uses: ./.github/workflows/platform-tests-vercel.yml
+  netlify:
+    name: netlify / ${{ matrix.variant }}
+    if: github.repository == 'sveltejs/kit' && (inputs.platform == 'all' || inputs.platform == 'netlify')
+    strategy:
+      fail-fast: false
+      matrix:
+        variant: [basic, edge, split]
+        include:
+          - variant: split-edge
+            app: split
+    uses: ./.github/workflows/platform-test.yml
     with:
-      sha: ${{ inputs.sha }}
+      sha: ${{ inputs.sha || github.sha }}
+      platform: netlify
+      variant: ${{ matrix.variant }}
+      app: ${{ matrix.app || matrix.variant }}
+    # the secrets of a job's environment only resolve in a called workflow when the caller passes `secrets`
     secrets: inherit
 
-  netlify:
-    uses: ./.github/workflows/platform-tests-netlify.yml
+  vercel:
+    name: vercel / ${{ matrix.variant }}
+    if: github.repository == 'sveltejs/kit' && (inputs.platform == 'all' || inputs.platform == 'vercel')
+    strategy:
+      fail-fast: false
+      matrix:
+        variant: [basic, split]
+    uses: ./.github/workflows/platform-test.yml
     with:
-      sha: ${{ inputs.sha }}
+      sha: ${{ inputs.sha || github.sha }}
+      platform: vercel
+      variant: ${{ matrix.variant }}
+      app: ${{ matrix.variant }}
     secrets: inherit
 
   node:
-    uses: ./.github/workflows/platform-tests-node.yml
-    with:
-      sha: ${{ inputs.sha }}
-    secrets: inherit
+    name: node / ${{ matrix.node-version }}
+    if: github.repository == 'sveltejs/kit' && (inputs.platform == 'all' || inputs.platform == 'node')
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version: [22, 24]
+    environment: '@sveltejs/adapter-node platform tests'
+    env:
+      APP: packages/adapter-node/test/apps/basic
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          ref: ${{ inputs.sha || github.sha }}
+          persist-credentials: false
+
+      - uses: ./.github/actions/node-setup
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - name: Build adapter-node files
+        working-directory: packages/adapter-node
+        run: pnpm prepublishOnly
+
+      - name: Install Playwright
+        run: pnpm playwright install chromium --no-shell
+
+      - name: Run Playwright tests
+        working-directory: ${{ env.APP }}
+        run: pnpm test:platform
+
+      - name: Upload test artifacts
+        if: failure()
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        with:
+          name: test-results-node-${{ matrix.node-version }}
+          path: ${{ env.APP }}/test-results
+          retention-days: 3
 
   report-status:
-    if: always()
-    needs: [vercel, netlify, node]
+    if: always() && github.repository == 'sveltejs/kit' && inputs.platform == 'all'
+    needs: [netlify, vercel, node]
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
     steps:
-      - name: Determine outcome
-        id: outcome
-        run: |
-          if [ "${{ contains(needs.*.result, 'failure') }}" = "true" ]; then
-            echo "conclusion=failure" >> "$GITHUB_OUTPUT"
-            echo "title=Platform tests failed" >> "$GITHUB_OUTPUT"
-            echo "summary=One or more platform test jobs failed. See the [workflow run](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}) for details." >> "$GITHUB_OUTPUT"
-          elif [ "${{ contains(needs.*.result, 'cancelled') }}" = "true" ]; then
-            echo "conclusion=cancelled" >> "$GITHUB_OUTPUT"
-            echo "title=Platform tests cancelled" >> "$GITHUB_OUTPUT"
-            echo "summary=Platform tests were cancelled before completing." >> "$GITHUB_OUTPUT"
-          else
-            echo "conclusion=success" >> "$GITHUB_OUTPUT"
-            echo "title=Platform tests passed" >> "$GITHUB_OUTPUT"
-            echo "summary=All platform test jobs passed." >> "$GITHUB_OUTPUT"
-          fi
-
       - name: Report results
         env:
           GH_TOKEN: ${{ github.token }}
+          SHA: ${{ inputs.sha || github.sha }}
+          CONCLUSION: ${{ contains(needs.*.result, 'failure') && 'failure' || contains(needs.*.result, 'cancelled') && 'cancelled' || 'success' }}
+          RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
         run: |
-          gh api repos/${{ github.repository }}/dispatches \
+          case "$CONCLUSION" in
+            failure)
+              title='Platform tests failed'
+              summary="One or more platform test jobs failed. See the [workflow run]($RUN_URL) for details."
+              ;;
+            cancelled)
+              title='Platform tests cancelled'
+              summary='Platform tests were cancelled before completing.'
+              ;;
+            success)
+              title='Platform tests passed'
+              summary='All platform test jobs passed.'
+              ;;
+          esac
+
+          gh api "repos/$GITHUB_REPOSITORY/dispatches" \
             -f event_type=platform-tests-result \
-            -f 'client_payload[sha]=${{ inputs.sha || github.sha }}' \
-            -f 'client_payload[conclusion]=${{ steps.outcome.outputs.conclusion }}' \
-            -f 'client_payload[title]=${{ steps.outcome.outputs.title }}' \
-            -f 'client_payload[summary]=${{ steps.outcome.outputs.summary }}' \
-            -f 'client_payload[details_url]=${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}'
+            -f "client_payload[sha]=$SHA" \
+            -f "client_payload[conclusion]=$CONCLUSION" \
+            -f "client_payload[title]=$title" \
+            -f "client_payload[summary]=$summary" \
+            -f "client_payload[details_url]=$RUN_URL"
diff --git a/.github/workflows/platform-tests-netlify.yml b/.github/workflows/platform-tests-netlify.yml
deleted file mode 100644
index f6246488a7ae..000000000000
--- a/.github/workflows/platform-tests-netlify.yml
+++ /dev/null
@@ -1,57 +0,0 @@
-name: Platform Tests (Netlify)
-
-on:
-  workflow_dispatch:
-    inputs:
-      sha:
-        description: 'Commit SHA to test'
-        required: false
-        default: ''
-  workflow_call:
-    inputs:
-      sha:
-        description: 'Commit SHA to test'
-        required: false
-        type: string
-        default: ''
-
-permissions:
-  contents: read
-
-jobs:
-  basic:
-    if: github.repository == 'sveltejs/kit'
-    uses: ./.github/workflows/platform-test-netlify.yml
-    with:
-      sha: ${{ inputs.sha || github.sha }}
-      variant: basic
-      test-app-dir: packages/adapter-netlify/test/apps/basic
-    secrets: inherit
-
-  edge:
-    if: github.repository == 'sveltejs/kit'
-    uses: ./.github/workflows/platform-test-netlify.yml
-    with:
-      sha: ${{ inputs.sha || github.sha }}
-      variant: edge
-      test-app-dir: packages/adapter-netlify/test/apps/edge
-    secrets: inherit
-
-  split:
-    if: github.repository == 'sveltejs/kit'
-    uses: ./.github/workflows/platform-test-netlify.yml
-    with:
-      sha: ${{ inputs.sha || github.sha }}
-      variant: split
-      test-app-dir: packages/adapter-netlify/test/apps/split
-    secrets: inherit
-
-  split-edge:
-    if: github.repository == 'sveltejs/kit'
-    uses: ./.github/workflows/platform-test-netlify.yml
-    with:
-      sha: ${{ inputs.sha || github.sha }}
-      variant: split-edge
-      test-app-dir: packages/adapter-netlify/test/apps/split
-      edge: true
-    secrets: inherit
diff --git a/.github/workflows/platform-tests-node.yml b/.github/workflows/platform-tests-node.yml
deleted file mode 100644
index 6b375d255162..000000000000
--- a/.github/workflows/platform-tests-node.yml
+++ /dev/null
@@ -1,47 +0,0 @@
-name: Platform Tests (Node)
-
-on:
-  workflow_dispatch:
-    inputs:
-      sha:
-        description: 'Commit SHA to test'
-        required: false
-        default: ''
-  workflow_call:
-    inputs:
-      sha:
-        description: 'Commit SHA to test'
-        required: false
-        type: string
-        default: ''
-
-permissions:
-  contents: read
-
-env:
-  PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: '1'
-
-jobs:
-  test-basic:
-    if: github.repository == 'sveltejs/kit'
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        node-version: [22, 24]
-    environment: '@sveltejs/adapter-node platform tests'
-    steps:
-      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
-        with:
-          ref: ${{ inputs.sha || github.sha }}
-
-      - uses: ./.github/actions/node-setup
-        with:
-          node-version: ${{ matrix.node-version }}
-
-      - name: Build adapter-node files
-        working-directory: packages/adapter-node
-        run: pnpm prepublishOnly
-
-      - uses: ./.github/actions/node-test
-        with:
-          test-app-dir: packages/adapter-node/test/apps/basic
diff --git a/.github/workflows/platform-tests-vercel.yml b/.github/workflows/platform-tests-vercel.yml
deleted file mode 100644
index ae4e682899cf..000000000000
--- a/.github/workflows/platform-tests-vercel.yml
+++ /dev/null
@@ -1,39 +0,0 @@
-name: Platform Tests (Vercel)
-
-on:
-  workflow_dispatch:
-    inputs:
-      sha:
-        description: 'Commit SHA to test'
-        required: false
-        default: ''
-  workflow_call:
-    inputs:
-      sha:
-        description: 'Commit SHA to test'
-        required: false
-        type: string
-        default: ''
-
-permissions:
-  contents: read
-
-jobs:
-  basic:
-    if: github.repository == 'sveltejs/kit'
-    uses: ./.github/workflows/platform-test-vercel.yml
-    with:
-      sha: ${{ inputs.sha || github.sha }}
-      variant: basic
-      test-app-dir: packages/adapter-vercel/test/apps/basic
-      purge-cache: true
-    secrets: inherit
-
-  split:
-    if: github.repository == 'sveltejs/kit'
-    uses: ./.github/workflows/platform-test-vercel.yml
-    with:
-      sha: ${{ inputs.sha || github.sha }}
-      variant: split
-      test-app-dir: packages/adapter-vercel/test/apps/split
-    secrets: inherit

From 2141fbd91b71ccbec07cadabec012b577a85611b Mon Sep 17 00:00:00 2001
From: Nic Polumeyv <162764842+Nic-Polumeyv@users.noreply.github.com>
Date: Sun, 20 Sep 2026 23:30:38 -0400
Subject: [PATCH 3/4] make the Vercel project root exist before deploying and
 give the test job the build output

---
 .github/workflows/platform-test.yml | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/platform-test.yml b/.github/workflows/platform-test.yml
index 9c65b8701d90..f82ddd649d5e 100644
--- a/.github/workflows/platform-test.yml
+++ b/.github/workflows/platform-test.yml
@@ -122,7 +122,10 @@ jobs:
           VERCEL_TOKEN: ${{ secrets.VERCEL_TOKEN }}
           VERCEL_ORG_ID: ${{ secrets.VERCEL_ORG_ID }}
           VERCEL_PROJECT_ID: ${{ inputs.variant == 'basic' && secrets.VERCEL_PROJECT_ID_BASIC || secrets.VERCEL_PROJECT_ID_SPLIT }}
-        run: vercel deploy --prebuilt --yes --token="$VERCEL_TOKEN" > url
+        # the CLI reads `.vercel/output` from here but checks that the project's root directory exists
+        run: |
+          mkdir -p "$APP"
+          vercel deploy --prebuilt --yes --token="$VERCEL_TOKEN" > url
 
       # avoid stale cache results when testing ISR routes
       - name: Purge Vercel CDN Cache
@@ -150,6 +153,12 @@ jobs:
       - name: Install Playwright
         run: pnpm playwright install chromium --no-shell
 
+      # some tests inspect the build output
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          name: ${{ inputs.platform }}-${{ inputs.variant }}
+          path: ${{ env.APP }}
+
       - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
           name: ${{ inputs.platform }}-${{ inputs.variant }}-url

From 4a9eb01686f330bb452f0862ee3cd440de1948ad Mon Sep 17 00:00:00 2001
From: Nic Polumeyv <162764842+Nic-Polumeyv@users.noreply.github.com>
Date: Mon, 21 Sep 2026 00:04:21 -0400
Subject: [PATCH 4/4] install the CLI in one step and scope the Playwright env
 to the node job

---
 .github/workflows/platform-test.yml      | 11 ++++-------
 .github/workflows/platform-tests-all.yml |  4 +---
 2 files changed, 5 insertions(+), 10 deletions(-)

diff --git a/.github/workflows/platform-test.yml b/.github/workflows/platform-test.yml
index f82ddd649d5e..be98e791dcf9 100644
--- a/.github/workflows/platform-test.yml
+++ b/.github/workflows/platform-test.yml
@@ -94,9 +94,10 @@ jobs:
           version: ^12.0.0
           runtime: node@24
 
-      - name: Install Netlify CLI
-        if: inputs.platform == 'netlify'
-        run: pnpm i -g netlify-cli --allow-build=esbuild --allow-build=netlify-cli
+      - name: Install CLI
+        env:
+          CLI: ${{ inputs.platform == 'netlify' && 'netlify-cli' || 'vercel' }}
+        run: pnpm i -g "$CLI" --allow-build=esbuild --allow-build=netlify-cli
 
       # the secrets are passed as flags and scrubbed from the environment the CLI bundles functions in
       - name: Deploy to Netlify
@@ -110,10 +111,6 @@ jobs:
             --auth="$NETLIFY_AUTH_TOKEN" --site="$NETLIFY_PROJECT_ID" \
             | tee /dev/stderr | jq -er '.deploy_url' > url
 
-      - name: Install Vercel CLI
-        if: inputs.platform == 'vercel'
-        run: pnpm i -g vercel
-
       # Important: When setting up a new Vercel test app, make sure
       # to set the root directory in the dashboard to the correct path.
       - name: Deploy to Vercel
diff --git a/.github/workflows/platform-tests-all.yml b/.github/workflows/platform-tests-all.yml
index 13bc01dea730..349688bc4461 100644
--- a/.github/workflows/platform-tests-all.yml
+++ b/.github/workflows/platform-tests-all.yml
@@ -16,9 +16,6 @@ on:
 permissions:
   contents: read
 
-env:
-  PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: '1'
-
 jobs:
   netlify:
     name: netlify / ${{ matrix.variant }}
@@ -65,6 +62,7 @@ jobs:
         node-version: [22, 24]
     environment: '@sveltejs/adapter-node platform tests'
     env:
+      PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: '1'
       APP: packages/adapter-node/test/apps/basic
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1