1.42.9 (#10953)

Patch version increment to 1.42.9

**Base branch:** `core/1.42`

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-10953-1-42-9-33c6d73d365081f8b543c1027bf2f986)
by [Unito](https://www.unito.io)

Co-authored-by: christian-byrne <72887196+christian-byrne@users.noreply.github.com>
Co-authored-by: Christian Byrne <cbyrne@comfy.org>

.claude/skills/red-green-fix/SKILL.md

@@ -0,0 +1,221 @@
+---
+name: red-green-fix
+description: 'Bug fix workflow that proves test validity with a red-then-green CI sequence. Commits a failing test first (CI red), then the minimal fix (CI green). Use when fixing a bug, writing a regression test, or when asked to prove a fix works.'
+---
+
+# Red-Green Fix
+
+Fixes bugs as two commits so CI automatically proves the test catches the bug.
+
+## Why Two Commits
+
+If you commit the test and fix together, the test always passes — reviewers cannot tell whether the test actually detects the bug or is a no-op. Splitting into two commits creates a verifiable CI trail:
+
+1. **Commit 1 (test-only)** — adds a test that exercises the bug. CI runs it → test fails → red X.
+2. **Commit 2 (fix)** — adds the minimal fix. CI runs the same test → test passes → green check.
+
+The red-then-green sequence in the commit history proves the test is valid.
+
+## Input
+
+The user provides a bug description as an argument. If no description is given, ask the user to describe the bug before proceeding.
+
+Bug description: $ARGUMENTS
+
+## Step 0 — Setup
+
+Create an isolated branch from main:
+
+```bash
+git fetch origin main
+git checkout -b fix/<bug-name> origin/main
+```
+
+## Step 1 — Red: Failing Test Only
+
+Write a test that reproduces the bug. **Do NOT write any fix code.**
+
+### Choosing the Test Framework
+
+| Bug type                          | Framework  | File location                   |
+| --------------------------------- | ---------- | ------------------------------- |
+| Logic, utils, stores, composables | Vitest     | `src/**/*.test.ts` (colocated)  |
+| UI interaction, canvas, workflows | Playwright | `browser_tests/tests/*.spec.ts` |
+
+For Playwright tests, follow the `/writing-playwright-tests` skill for patterns, fixtures, and tags.
+
+### Rules
+
+- The test MUST fail against the current codebase (this is the whole point)
+- Do NOT modify any source code outside of test files
+- Do NOT include any fix, workaround, or behavioral change
+- Do NOT add unrelated tests or refactor existing tests
+- Keep the test minimal — only what is needed to reproduce the bug
+- Avoid common anti-patterns — see `reference/testing-anti-patterns.md`
+
+### Vitest Example
+
+```typescript
+// src/utils/pathUtil.test.ts
+import { describe, expect, it } from 'vitest'
+import { resolveModelPath } from './pathUtil'
+
+describe('resolveModelPath', () => {
+  it('handles absolute paths from folder_paths API', () => {
+    const result = resolveModelPath(
+      '/absolute/models',
+      '/absolute/models/checkpoints'
+    )
+    expect(result).toBe('/absolute/models/checkpoints')
+  })
+})
+```
+
+### Playwright Example
+
+```typescript
+import {
+  comfyPageFixture as test,
+  comfyExpect as expect
+} from '../fixtures/ComfyPage'
+
+test.describe('Model Download', { tag: ['@smoke'] }, () => {
+  test('downloads model when path is absolute', async ({ comfyPage }) => {
+    await comfyPage.workflow.loadWorkflow('missing-model')
+    const downloadBtn = comfyPage.page.getByTestId('download-model-button')
+    await downloadBtn.click()
+    await expect(comfyPage.page.getByText('Download complete')).toBeVisible()
+  })
+})
+```
+
+### Verify Locally First
+
+Run the test locally before pushing to confirm it fails for the right reason:
+
+```bash
+# Vitest
+pnpm test:unit -- <test-file>
+
+# Playwright
+pnpm test:browser:local -- --grep "<test name>"
+```
+
+If the test passes locally, it does not reproduce the bug — revisit your test before pushing.
+
+### Quality Checks and Commit
+
+```bash
+pnpm typecheck
+pnpm lint
+pnpm format:check
+
+git add <test-files-only>
+git commit -m "test: add failing test for <concise bug description>"
+git push -u origin HEAD
+```
+
+### Verify CI Failure
+
+```bash
+gh run list --branch $(git branch --show-current) --limit 1
+```
+
+**STOP HERE.** Inform the user of the CI status and wait for confirmation before proceeding to Step 2.
+
+- If CI passes: the test does not catch the bug. Revisit the test.
+- If CI fails for unrelated reasons: investigate and fix the test setup, not the bug.
+- If CI fails because the test correctly catches the bug: proceed to Step 2.
+
+## Step 2 — Green: Minimal Fix
+
+Write the minimum code change needed to make the failing test pass.
+
+### Rules
+
+- Do NOT modify, weaken, or delete the test from Step 1 — it is immutable. If the test needs changes, restart from Step 1 and re-prove the red.
+- Do NOT add new tests (tests were finalized in Step 1)
+- Do NOT refactor, clean up, or make "drive-by" improvements
+- Do NOT modify code unrelated to the bug
+- The fix should be the smallest correct change
+
+### Quality Checks and Commit
+
+```bash
+pnpm typecheck
+pnpm lint
+pnpm format
+
+git add <fix-files-only>
+git commit -m "fix: <concise bug description>"
+git push
+```
+
+### Verify CI Pass
+
+```bash
+gh run list --branch $(git branch --show-current) --limit 1
+```
+
+- If CI passes: the fix is verified. Proceed to PR creation.
+- If CI fails: investigate and fix. Do NOT change the test from Step 1.
+
+## Step 3 — Open Pull Request
+
+```bash
+gh pr create --title "fix: <description>" --body "$(cat <<'EOF'
+## Summary
+
+<Brief explanation of the bug and root cause>
+
+- Fixes #<issue-number>
+
+## Red-Green Verification
+
+| Commit | CI Status | Purpose |
+|--------|-----------|---------|
+| `test: ...` | :red_circle: Red | Proves the test catches the bug |
+| `fix: ...` | :green_circle: Green | Proves the fix resolves the bug |
+
+## Test Plan
+
+- [ ] CI red on test-only commit
+- [ ] CI green on fix commit
+- [ ] Added/updated E2E regression under `browser_tests/` or explained why not applicable
+- [ ] Manual verification (if applicable)
+EOF
+)"
+```
+
+## Gotchas
+
+### CI fails on test commit for unrelated reasons
+
+Lint, typecheck, or other tests may fail — not just your new test. Check the CI logs carefully. If the failure is unrelated, fix it in a separate commit before the `test:` commit so the red X is clearly attributable to your test.
+
+### Test passes when it should fail
+
+The bug may only manifest under specific conditions (e.g., Windows paths, external model directories, certain workflow structures). Make sure your test setup matches the actual bug scenario. Check that you're not accidentally testing the happy path.
+
+### Flaky Playwright tests
+
+If your e2e test is intermittent, it doesn't prove anything. Use retrying assertions (`toBeVisible`, `toHaveText`) instead of `waitForTimeout`. See the `/writing-playwright-tests` skill for anti-patterns.
+
+### Pre-existing CI failures on main
+
+If main itself is red, branch from the last green commit or fix the pre-existing failure first. A red-green proof is meaningless if the baseline is already red.
+
+## Reference
+
+| Resource              | Path                                               |
+| --------------------- | -------------------------------------------------- |
+| Unit test framework   | Vitest (`src/**/*.test.ts`)                        |
+| E2E test framework    | Playwright (`browser_tests/tests/*.spec.ts`)       |
+| E2E fixtures          | `browser_tests/fixtures/`                          |
+| E2E assets            | `browser_tests/assets/`                            |
+| Playwright skill      | `.claude/skills/writing-playwright-tests/SKILL.md` |
+| Unit CI               | `.github/workflows/ci-tests-unit.yaml`             |
+| E2E CI                | `.github/workflows/ci-tests-e2e.yaml`              |
+| Lint CI               | `.github/workflows/ci-lint-format.yaml`            |
+| Testing anti-patterns | `reference/testing-anti-patterns.md`               |
+| Related skill         | `.claude/skills/perf-fix-with-proof/SKILL.md`      |

.claude/skills/red-green-fix/reference/testing-anti-patterns.md

@@ -0,0 +1,214 @@
+# Testing Anti-Patterns for Red-Green Fixes
+
+Common mistakes that undermine the red-green proof. Avoid these when writing the test commit (Step 1).
+
+## Testing Implementation Details
+
+Test observable behavior, not internal state.
+
+**Bad** — coupling to internals:
+
+```typescript
+it('uses cache internally', () => {
+  const service = new UserService()
+  service.getUser(1)
+  expect(service._cache.has(1)).toBe(true) // Implementation detail
+})
+```
+
+**Good** — testing through the public interface:
+
+```typescript
+it('returns same user on repeated calls', async () => {
+  const service = new UserService()
+  const user1 = await service.getUser(1)
+  const user2 = await service.getUser(1)
+  expect(user1).toBe(user2) // Behavior, not implementation
+})
+```
+
+Why this matters for red-green: if your test is coupled to internals, a valid fix that changes the implementation may break the test — even though the bug is fixed. The green commit should only require changing source code, not rewriting the test.
+
+## Assertion-Free Tests
+
+Every test must assert something meaningful. A test without assertions always passes — it cannot produce the red X needed in Step 1.
+
+**Bad**:
+
+```typescript
+it('processes the download', () => {
+  processDownload('/models/checkpoints', 'model.safetensors')
+  // No expect()!
+})
+```
+
+**Good**:
+
+```typescript
+it('processes the download to correct path', () => {
+  const result = processDownload('/models/checkpoints', 'model.safetensors')
+  expect(result.savePath).toBe('/models/checkpoints/model.safetensors')
+})
+```
+
+## Over-Mocking
+
+Mock only system boundaries (network, filesystem, Electron APIs). If you mock the module under test, you are testing your mocks — the test will not detect the real bug.
+
+**Bad** — mocking everything:
+
+```typescript
+vi.mock('./pathResolver')
+vi.mock('./validator')
+vi.mock('./downloader')
+
+it('downloads model', () => {
+  // This only tests that mocks were called, not that the bug exists
+})
+```
+
+**Good** — mock only the boundary:
+
+```typescript
+vi.mock('./electronAPI') // Boundary: Electron IPC
+
+it('resolves absolute path correctly', () => {
+  const result = resolveModelPath('/root/models', '/root/models/checkpoints')
+  expect(result).toBe('/root/models/checkpoints')
+})
+```
+
+See also: [Don't Mock What You Don't Own](https://hynek.me/articles/what-to-mock-in-5-mins/)
+
+## Giant Tests
+
+A test that covers the entire flow makes it hard to pinpoint which part catches the bug. Keep it focused — one concept per test.
+
+**Bad**:
+
+```typescript
+it('full model download flow', async () => {
+  // 80 lines: load workflow, open dialog, select model,
+  // click download, verify path, check progress, confirm completion
+})
+```
+
+**Good**:
+
+```typescript
+it('resolves absolute savePath without nesting under modelsDirectory', () => {
+  const result = getLocalSavePath(
+    '/models',
+    '/models/checkpoints',
+    'file.safetensors'
+  )
+  expect(result).toBe('/models/checkpoints/file.safetensors')
+})
+```
+
+If the bug is in path resolution, test path resolution — not the entire download flow.
+
+## Test Duplication
+
+Duplicated test code hides what actually differs between cases. Use parameterized tests.
+
+**Bad**:
+
+```typescript
+it('resolves checkpoints path', () => {
+  expect(resolve('/models', '/models/checkpoints', 'a.safetensors')).toBe(
+    '/models/checkpoints/a.safetensors'
+  )
+})
+it('resolves loras path', () => {
+  expect(resolve('/models', '/models/loras', 'b.safetensors')).toBe(
+    '/models/loras/b.safetensors'
+  )
+})
+```
+
+**Good**:
+
+```typescript
+it.each([
+  ['/models/checkpoints', 'a.safetensors', '/models/checkpoints/a.safetensors'],
+  ['/models/loras', 'b.safetensors', '/models/loras/b.safetensors']
+])('resolves %s/%s to %s', (dir, file, expected) => {
+  expect(resolve('/models', dir, file)).toBe(expected)
+})
+```
+
+## Flaky Tests
+
+A flaky test cannot prove anything — it may show red for reasons unrelated to the bug, or green despite the bug still existing.
+
+**Common causes in this codebase:**
+
+| Cause                                  | Fix                                     |
+| -------------------------------------- | --------------------------------------- |
+| Missing `nextFrame()` after canvas ops | Add `await comfyPage.nextFrame()`       |
+| `waitForTimeout` instead of assertions | Use `toBeVisible()`, `toHaveText()`     |
+| Shared state between tests             | Isolate with `afterEach` / `beforeEach` |
+| Timing-dependent logic                 | Use `expect.poll()` or `toPass()`       |
+
+## Gaming the Red-Green Process
+
+These are ways the red-green proof gets invalidated during Step 2 (the fix commit). The test from Step 1 is immutable — if any of these happen, restart from Step 1.
+
+**Weakening the assertion to make it pass:**
+
+```typescript
+// Step 1 (red) — strict assertion
+expect(result).toBe('/external/drive/models/checkpoints/file.safetensors')
+
+// Step 2 (green) — weakened to pass without a real fix
+expect(result).toBeDefined() // This proves nothing
+```
+
+**Updating snapshots to bless the bug:**
+
+```bash
+# Instead of fixing the code, just updating the snapshot to match buggy output
+pnpm test:unit -- --update
+```
+
+If a snapshot needs updating, the fix should change the code behavior, not the expected output.
+
+**Adding mocks in Step 2 that hide the failure:**
+
+```typescript
+// Step 2 adds a mock that didn't exist in Step 1
+vi.mock('./pathResolver', () => ({
+  resolve: () => '/expected/path' // Hardcoded to pass
+}))
+```
+
+Step 2 should only change source code — not test infrastructure.
+
+## Testing the Happy Path Only
+
+The red-green pattern specifically requires the test to exercise the **broken path**. If you only test the case that already works, the test will pass (green) on Step 1 — defeating the purpose.
+
+**Bad** — testing the default case that works:
+
+```typescript
+it('downloads to default models directory', () => {
+  // This already works — it won't produce a red X
+  const result = resolve('/models', 'checkpoints', 'file.safetensors')
+  expect(result).toBe('/models/checkpoints/file.safetensors')
+})
+```
+
+**Good** — testing the case that is actually broken:
+
+```typescript
+it('downloads to external models directory configured via extra_model_paths', () => {
+  // This is the broken case — absolute path from folder_paths API
+  const result = resolve(
+    '/models',
+    '/external/drive/models/checkpoints',
+    'file.safetensors'
+  )
+  expect(result).toBe('/external/drive/models/checkpoints/file.safetensors')
+})
+```

.coderabbit.yaml

@@ -3,6 +3,7 @@ issue_enrichment:
     enabled: true
 reviews:
   high_level_summary: false
+  request_changes_workflow: true
   auto_review:
     drafts: true
     ignore_title_keywords:
@@ -13,10 +14,14 @@ reviews:
       - github-actions
       - github-actions[bot]
   pre_merge_checks:
+    override_requested_reviewers_only: true
     custom_checks:
       - name: End-to-end regression coverage for fixes
-        mode: warning
+        mode: error
         instructions: |
+          Use only PR metadata already available in the review context: the PR title, commit subjects in this PR, the files changed in this PR relative to the PR base (equivalent to `base...head`), and the PR description.
+          Do not rely on shell commands. Do not inspect reverse diffs, files changed only on the base branch, or files outside this PR. If the changed-file list or commit subjects are unavailable, mark the check inconclusive instead of guessing.
+
           Pass if at least one of the following is true:
           1. Neither the PR title nor any commit subject in the PR uses bug-fix language such as `fix`, `fixed`, `fixes`, `fixing`, `bugfix`, or `hotfix`.
           2. The PR changes at least one file under `browser_tests/`.

.gitattributes

@@ -3,4 +3,6 @@
 
 # Generated files
 packages/registry-types/src/comfyRegistryTypes.ts linguist-generated=true
+packages/ingest-types/src/types.gen.ts linguist-generated=true
+packages/ingest-types/src/zod.gen.ts linguist-generated=true
 src/workbench/extensions/manager/types/generatedManagerTypes.ts linguist-generated=true

.github/workflows/ci-perf-report.yaml

@@ -10,7 +10,7 @@ on:
 
 concurrency:
   group: perf-${{ github.ref }}
-  cancel-in-progress: true
+  cancel-in-progress: false
 
 permissions:
   contents: read
@@ -26,12 +26,15 @@ jobs:
         username: ${{ github.actor }}
         password: ${{ secrets.GITHUB_TOKEN }}
     permissions:
-      contents: read
+      contents: write
       packages: read
+      actions: read
 
     steps:
       - name: Checkout repository
         uses: actions/checkout@v6
+        with:
+          persist-credentials: false
 
       - name: Setup frontend
         uses: ./.github/actions/setup-frontend
@@ -68,3 +71,44 @@ jobs:
         with:
           name: perf-meta
           path: temp/perf-meta/
+
+      - name: Save perf baseline to perf-data branch
+        if: github.event_name == 'push' && github.ref == 'refs/heads/main' && steps.perf.outcome == 'success'
+        continue-on-error: true
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git config url."https://x-access-token:${GH_TOKEN}@github.com/".insteadOf "https://github.com/"
+
+          cp test-results/perf-metrics.json /tmp/perf-metrics.json
+
+          git fetch origin perf-data || {
+            echo "Creating perf-data branch"
+            git checkout --orphan perf-data
+            git rm -rf . 2>/dev/null || true
+            echo "# Performance Baselines" > README.md
+            mkdir -p baselines
+            git add README.md baselines
+            git commit -m "Initialize perf-data branch"
+            git push origin perf-data
+            git fetch origin perf-data
+          }
+
+          git worktree add /tmp/perf-data origin/perf-data
+
+          TIMESTAMP=$(date -u +%Y%m%dT%H%M%SZ)
+          SHA=$(echo "${{ github.sha }}" | cut -c1-8)
+          mkdir -p /tmp/perf-data/baselines
+          cp /tmp/perf-metrics.json "/tmp/perf-data/baselines/perf-${TIMESTAMP}-${SHA}.json"
+
+          # Keep only last 20 baselines
+          cd /tmp/perf-data
+          ls -t baselines/perf-*.json 2>/dev/null | tail -n +21 | xargs -r rm
+
+          git -C /tmp/perf-data add baselines/
+          git -C /tmp/perf-data commit -m "perf: add baseline for ${SHA}" || echo "No changes to commit"
+          git -C /tmp/perf-data push origin HEAD:perf-data
+
+          git worktree remove /tmp/perf-data --force 2>/dev/null || true
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/pr-perf-report.yaml

@@ -10,6 +10,7 @@ permissions:
   contents: read
   pull-requests: write
   issues: write
+  actions: read
 
 jobs:
   comment:
@@ -73,7 +74,28 @@ jobs:
             core.setOutput('number', String(pr.number));
             core.setOutput('base', trustedBase);
 
+      - name: Check if results are still current
+        id: sha-check
+        uses: actions/github-script@v8
+        with:
+          script: |
+            const prNumber = Number('${{ steps.pr-meta.outputs.number }}');
+            const { data: pr } = await github.rest.pulls.get({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: prNumber,
+            });
+            const runSha = context.payload.workflow_run.head_sha;
+            const currentSha = pr.head.sha;
+            if (runSha !== currentSha) {
+              core.info(`Skipping stale report: run SHA ${runSha} != current PR SHA ${currentSha}`);
+              core.setOutput('stale', 'true');
+            } else {
+              core.setOutput('stale', 'false');
+            }
+
       - name: Download PR perf metrics
+        if: steps.sha-check.outputs.stale != 'true'
         uses: dawidd6/action-download-artifact@0bd50d53a6d7fb5cb921e607957e9cc12b4ce392 # v12
         with:
           name: perf-metrics
@@ -81,6 +103,7 @@ jobs:
           path: test-results/
 
       - name: Download baseline perf metrics
+        if: steps.sha-check.outputs.stale != 'true'
         uses: dawidd6/action-download-artifact@0bd50d53a6d7fb5cb921e607957e9cc12b4ce392 # v12
         with:
           branch: ${{ steps.pr-meta.outputs.base }}
@@ -90,10 +113,33 @@ jobs:
           path: temp/perf-baseline/
           if_no_artifact_found: warn
 
+      - name: Load historical baselines from perf-data branch
+        if: steps.sha-check.outputs.stale != 'true'
+        continue-on-error: true
+        run: |
+          mkdir -p temp/perf-history
+
+          git fetch origin perf-data 2>/dev/null || {
+            echo "perf-data branch not found, skipping historical data"
+            exit 0
+          }
+
+          INDEX=0
+          for file in $(git ls-tree --name-only origin/perf-data baselines/ 2>/dev/null | sort -r | head -5); do
+            DIR="temp/perf-history/$INDEX"
+            mkdir -p "$DIR"
+            git show "origin/perf-data:${file}" > "$DIR/perf-metrics.json" 2>/dev/null || true
+            INDEX=$((INDEX + 1))
+          done
+
+          echo "Loaded $INDEX historical baselines"
+
       - name: Generate perf report
+        if: steps.sha-check.outputs.stale != 'true'
         run: npx --yes tsx scripts/perf-report.ts > perf-report.md
 
       - name: Post PR comment
+        if: steps.sha-check.outputs.stale != 'true'
         uses: ./.github/actions/post-pr-report-comment
         with:
           pr-number: ${{ steps.pr-meta.outputs.number }}

browser_tests/assets/subgraphs/nested-duplicate-widget-names.json

@@ -0,0 +1,172 @@
+{
+  "id": "9efdcc44-6372-4b4a-b6f9-789c67f052e1",
+  "revision": 0,
+  "last_node_id": 4,
+  "last_link_id": 0,
+  "nodes": [
+    {
+      "id": 4,
+      "type": "f5d6b5f0-64e3-4d3e-bb28-d25d8a6c182f",
+      "pos": [689.0083557128902, 467.9999999999997],
+      "size": [431.8999938964844, 206.60000610351562],
+      "flags": {},
+      "order": 0,
+      "mode": 0,
+      "inputs": [],
+      "outputs": [],
+      "properties": {
+        "proxyWidgets": [["3", "text", "2"]]
+      },
+      "widgets_values": []
+    }
+  ],
+  "links": [],
+  "groups": [],
+  "definitions": {
+    "subgraphs": [
+      {
+        "id": "9a3f232c-da11-4725-8927-b11e46d0cee4",
+        "version": 1,
+        "state": {
+          "lastGroupId": 0,
+          "lastNodeId": 4,
+          "lastLinkId": 0,
+          "lastRerouteId": 0
+        },
+        "revision": 0,
+        "config": {},
+        "name": "Inner Subgraph",
+        "inputNode": {
+          "id": -10,
+          "bounding": [330, 367, 120, 40]
+        },
+        "outputNode": {
+          "id": -20,
+          "bounding": [983, 367, 120, 40]
+        },
+        "inputs": [],
+        "outputs": [],
+        "widgets": [],
+        "nodes": [
+          {
+            "id": 1,
+            "type": "CLIPTextEncode",
+            "pos": [510, 166],
+            "size": [400, 200],
+            "flags": {},
+            "order": 0,
+            "mode": 0,
+            "inputs": [
+              {
+                "localized_name": "clip",
+                "name": "clip",
+                "type": "CLIP",
+                "link": null
+              }
+            ],
+            "outputs": [
+              {
+                "localized_name": "CONDITIONING",
+                "name": "CONDITIONING",
+                "type": "CONDITIONING",
+                "links": null
+              }
+            ],
+            "properties": {
+              "Node name for S&R": "CLIPTextEncode"
+            },
+            "widgets_values": ["11111111111"]
+          },
+          {
+            "id": 2,
+            "type": "CLIPTextEncode",
+            "pos": [523, 438],
+            "size": [400, 200],
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browser_tests/assets/subgraphs/nested-pack-promoted-values.json

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+      "title": "Model link",
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+        "## Report workflow issue\n\nIf you found any issues when running this workflow, [report template issue here](https://github.com/Comfy-Org/workflow_templates/issues)\n\n\n## Model links\n\n**text_encoders**\n\n- [qwen_3_4b.safetensors](https://huggingface.co/Comfy-Org/z_image_turbo/resolve/main/split_files/text_encoders/qwen_3_4b.safetensors)\n\n**loras**\n\n- [pixel_art_style_z_image_turbo.safetensors](https://huggingface.co/tarn59/pixel_art_style_lora_z_image_turbo/resolve/main/pixel_art_style_z_image_turbo.safetensors)\n\n**diffusion_models**\n\n- [z_image_turbo_bf16.safetensors](https://huggingface.co/Comfy-Org/z_image_turbo/resolve/main/split_files/diffusion_models/z_image_turbo_bf16.safetensors)\n\n**vae**\n\n- [ae.safetensors](https://huggingface.co/Comfy-Org/z_image_turbo/resolve/main/split_files/vae/ae.safetensors)\n\n\nModel Storage Location\n\n```\n📂 ComfyUI/\n├── 📂 models/\n│   ├── 📂 text_encoders/\n│   │      └── qwen_3_4b.safetensors\n│   ├── 📂 loras/\n│   │      └── pixel_art_style_z_image_turbo.safetensors\n│   ├── 📂 diffusion_models/\n│   │      └── z_image_turbo_bf16.safetensors\n│   └── 📂 vae/\n│          └── ae.safetensors\n```\n"
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+    "VHS_latentpreviewrate": 0,
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+    "VHS_KeepIntermediate": true
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+}

browser_tests/assets/subgraphs/nested-subgraph-legacy-prefixed-proxy-widgets.json

@@ -0,0 +1,599 @@
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+  "revision": 0,
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+          "type": "STRING",
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+        }
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+        {
+          "name": "STRING",
+          "type": "STRING",
+          "links": [5]
+        }
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+      "properties": {
+        "proxyWidgets": [["6", "6: 3: string_a"]]
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+      "mode": 0,
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+      "outputs": [],
+      "properties": {
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+      "widgets_values": [null, null, false]
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+      "pos": [356, 450],
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+      "flags": {},
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+      "mode": 0,
+      "inputs": [],
+      "outputs": [
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+          "type": "STRING",
+          "links": [4]
+        }
+      ],
+      "properties": {
+        "Node name for S&R": "PrimitiveStringMultiline"
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+      "widgets_values": ["Outer\n"]
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+  "links": [
+    [4, 1, 0, 5, 0, "STRING"],
+    [5, 5, 0, 2, 0, "STRING"]
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+            "type": "STRING",
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+            "localized_name": "string_a",
+            "pos": [451, 452.5]
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+          {
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+            "name": "STRING",
+            "type": "STRING",
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+              {
+                "localized_name": "string_b",
+                "name": "string_b",
+                "type": "STRING",
+                "widget": {
+                  "name": "string_b"
+                },
+                "link": 2
+              }
+            ],
+            "outputs": [
+              {
+                "localized_name": "STRING",
+                "name": "STRING",
+                "type": "STRING",
+                "links": [7]
+              }
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+            "properties": {
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+                "widget": {
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+                "link": 7
+              }
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+            "outputs": [
+              {
+                "localized_name": "STRING",
+                "name": "STRING",
+                "type": "STRING",
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+            "pos": [313, 685],
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+                "name": "STRING",
+                "type": "STRING",
+                "links": [2]
+              }
+            ],
+            "properties": {
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+            "type": "STRING",
+            "linkIds": [4],
+            "localized_name": "string_a",
+            "pos": [780, 794]
+          }
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+            "id": "a8bcf3bf-a66a-4c71-8d92-17a2a4d03686",
+            "name": "STRING",
+            "type": "STRING",
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+            "inputs": [
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+              {
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+                "name": "string_b",
+                "type": "STRING",
+                "widget": {
+                  "name": "string_b"
+                },
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+              }
+            ],
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+                "name": "STRING",
+                "type": "STRING",
+                "links": [11]
+              }
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+                "name": "STRING",
+                "type": "STRING",
+                "links": [7]
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+                "type": "STRING",
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+              }
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+              {
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+                "name": "STRING",
+                "type": "STRING",
+                "links": [12]
+              }
+            ],
+            "properties": {
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+          {
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+            "target_id": -20,
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+      {
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+        "version": 1,
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+            "type": "STRING",
+            "linkIds": [9],
+            "localized_name": "string_a",
+            "pos": [362, 1242]
+          }
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+          {
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+            "name": "STRING",
+            "type": "STRING",
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+            "pos": [1350, 1242]
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+            "inputs": [
+              {
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+              {
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+                "type": "STRING",
+                "widget": {
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+            ],
+            "outputs": [
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+                "name": "STRING",
+                "type": "STRING",
+                "links": [10]
+              }
+            ],
+            "properties": {
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+            "pos": [442, 1296],
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+            "flags": {},
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+            "inputs": [],
+            "outputs": [
+              {
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+                "name": "STRING",
+                "type": "STRING",
+                "links": [8]
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+            "properties": {
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+}

browser_tests/assets/subgraphs/nested-subgraph-stale-proxy-widgets.json

@@ -0,0 +1,555 @@
+{
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+      "mode": 0,
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+        }
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+      "outputs": [],
+      "properties": {},
+      "widgets_values": ["ComfyUI"]
+    },
+    {
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+      "type": "CheckpointLoaderSimple",
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+      "size": [400, 200],
+      "flags": {},
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+      "mode": 0,
+      "inputs": [],
+      "outputs": [
+        {
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+          "type": "MODEL",
+          "slot_index": 0,
+          "links": [11]
+        },
+        {
+          "name": "CLIP",
+          "type": "CLIP",
+          "slot_index": 1,
+          "links": [10]
+        },
+        {
+          "name": "VAE",
+          "type": "VAE",
+          "slot_index": 2,
+          "links": [12]
+        }
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+      "inputs": [
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+          "type": "CLIP",
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+        },
+        {
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+          "type": "MODEL",
+          "link": 11
+        },
+        {
+          "name": "vae",
+          "type": "VAE",
+          "link": 12
+        }
+      ],
+      "outputs": [
+        {
+          "name": "IMAGE",
+          "type": "IMAGE",
+          "links": [13]
+        }
+      ],
+      "properties": {
+        "proxyWidgets": [
+          ["7", "text"],
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+          ["3", "seed"]
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+}

browser_tests/assets/subgraphs/subgraph-with-text-widget.json

@@ -8,7 +8,7 @@
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-      "size": [140, 26],
+      "size": [400, 200],
       "flags": {},
       "order": 0,
       "mode": 0,

browser_tests/assets/subgraphs/test-values-input-subgraph.json

@@ -0,0 +1,407 @@
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+      "inputs": [
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+          "name": "seed",
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+          "name": "vae",
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+      "outputs": [
+        {
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+          "type": "IMAGE",
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+      "title": "Input Test Subgraph",
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+          ["15", "text"]
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+            },
+            "widgets_values": [""]
+          }
+        ],
+        "groups": [],
+        "links": [
+          {
+            "id": 17,
+            "origin_id": 15,
+            "origin_slot": 0,
+            "target_id": 12,
+            "target_slot": 1,
+            "type": "CONDITIONING"
+          },
+          {
+            "id": 18,
+            "origin_id": 12,
+            "origin_slot": 0,
+            "target_id": 16,
+            "target_slot": 0,
+            "type": "LATENT"
+          },
+          {
+            "id": 16,
+            "origin_id": -10,
+            "origin_slot": 0,
+            "target_id": 15,
+            "target_slot": 0,
+            "type": "CLIP"
+          },
+          {
+            "id": 15,
+            "origin_id": -10,
+            "origin_slot": 1,
+            "target_id": 12,
+            "target_slot": 4,
+            "type": "INT"
+          },
+          {
+            "id": 19,
+            "origin_id": -10,
+            "origin_slot": 2,
+            "target_id": 16,
+            "target_slot": 1,
+            "type": "VAE"
+          },
+          {
+            "id": 20,
+            "origin_id": 16,
+            "origin_slot": 0,
+            "target_id": -20,
+            "target_slot": 0,
+            "type": "IMAGE"
+          }
+        ],
+        "extra": {}
+      }
+    ]
+  },
+  "config": {},
+  "extra": {
+    "ds": {
+      "scale": 0.6727925600199565,
+      "offset": [446.69747171876463, 99.95078257277316]
+    }
+  },
+  "version": 0.4
+}

browser_tests/fixtures/ComfyPage.ts

@@ -31,6 +31,7 @@ import { DragDropHelper } from './helpers/DragDropHelper'
 import { KeyboardHelper } from './helpers/KeyboardHelper'
 import { NodeOperationsHelper } from './helpers/NodeOperationsHelper'
 import { SettingsHelper } from './helpers/SettingsHelper'
+import { AppModeHelper } from './helpers/AppModeHelper'
 import { SubgraphHelper } from './helpers/SubgraphHelper'
 import { ToastHelper } from './helpers/ToastHelper'
 import { WorkflowHelper } from './helpers/WorkflowHelper'
@@ -174,6 +175,7 @@ export class ComfyPage {
   public readonly settingDialog: SettingDialog
   public readonly confirmDialog: ConfirmDialog
   public readonly vueNodes: VueNodeHelpers
+  public readonly appMode: AppModeHelper
   public readonly subgraph: SubgraphHelper
   public readonly canvasOps: CanvasHelper
   public readonly nodeOps: NodeOperationsHelper
@@ -217,6 +219,7 @@ export class ComfyPage {
     this.settingDialog = new SettingDialog(page, this)
     this.confirmDialog = new ConfirmDialog(page)
     this.vueNodes = new VueNodeHelpers(page)
+    this.appMode = new AppModeHelper(this)
     this.subgraph = new SubgraphHelper(this)
     this.canvasOps = new CanvasHelper(page, this.canvas, this.resetViewButton)
     this.nodeOps = new NodeOperationsHelper(this)
@@ -431,9 +434,9 @@ export const comfyPageFixture = base.extend<{
         // Disable toast warning about version compatibility, as they may or
         // may not appear - depending on upstream ComfyUI dependencies
         'Comfy.VersionCompatibility.DisableWarnings': true,
-        // Browser tests should opt into missing-model warnings explicitly so
-        // workflows do not render differently based on models present on disk.
-        'Comfy.Workflow.ShowMissingModelsWarning': false
+        // Disable errors tab to prevent missing model detection from
+        // rendering error indicators on nodes during unrelated tests.
+        'Comfy.RightSidePanel.ShowErrorsTab': false
       })
     } catch (e) {
       console.error(e)

browser_tests/fixtures/helpers/AppModeHelper.ts

@@ -0,0 +1,163 @@
+import type { Locator, Page } from '@playwright/test'
+
+import type { ComfyPage } from '../ComfyPage'
+import { TestIds } from '../selectors'
+
+export class AppModeHelper {
+  constructor(private readonly comfyPage: ComfyPage) {}
+
+  private get page(): Page {
+    return this.comfyPage.page
+  }
+
+  private get builderToolbar(): Locator {
+    return this.page.getByRole('navigation', { name: 'App Builder' })
+  }
+
+  /** Enter builder mode via the "Workflow actions" dropdown → "Build app". */
+  async enterBuilder() {
+    await this.page
+      .getByRole('button', { name: 'Workflow actions' })
+      .first()
+      .click()
+    await this.page.getByRole('menuitem', { name: 'Build app' }).click()
+    await this.comfyPage.nextFrame()
+  }
+
+  /** Exit builder mode via the footer "Exit app builder" button. */
+  async exitBuilder() {
+    await this.page.getByRole('button', { name: 'Exit app builder' }).click()
+    await this.comfyPage.nextFrame()
+  }
+
+  /** Click the "Inputs" step in the builder toolbar. */
+  async goToInputs() {
+    await this.builderToolbar.getByRole('button', { name: 'Inputs' }).click()
+    await this.comfyPage.nextFrame()
+  }
+
+  /** Click the "Outputs" step in the builder toolbar. */
+  async goToOutputs() {
+    await this.builderToolbar.getByRole('button', { name: 'Outputs' }).click()
+    await this.comfyPage.nextFrame()
+  }
+
+  /** Click the "Preview" step in the builder toolbar. */
+  async goToPreview() {
+    await this.builderToolbar.getByRole('button', { name: 'Preview' }).click()
+    await this.comfyPage.nextFrame()
+  }
+
+  /** Click the "Next" button in the builder footer. */
+  async next() {
+    await this.page.getByRole('button', { name: 'Next' }).click()
+    await this.comfyPage.nextFrame()
+  }
+
+  /** Click the "Back" button in the builder footer. */
+  async back() {
+    await this.page.getByRole('button', { name: 'Back' }).click()
+    await this.comfyPage.nextFrame()
+  }
+
+  /** Toggle app mode (linear view) on/off. */
+  async toggleAppMode() {
+    await this.page.evaluate(() => {
+      window.app!.extensionManager.command.execute('Comfy.ToggleLinear')
+    })
+    await this.comfyPage.nextFrame()
+  }
+
+  /**
+   * Inject linearData into the current graph and enter app mode.
+   *
+   * Serializes the graph, injects linearData with the given inputs and
+   * auto-detected output node IDs, then reloads so the appModeStore
+   * picks up the data via its activeWorkflow watcher.
+   *
+   * @param inputs - Widget selections as [nodeId, widgetName] tuples
+   */
+  async enterAppModeWithInputs(inputs: [string, string][]) {
+    await this.page.evaluate(async (inputTuples) => {
+      const graph = window.app!.graph
+      if (!graph) return
+
+      const outputNodeIds = graph.nodes
+        .filter(
+          (n: { type?: string }) =>
+            n.type === 'SaveImage' || n.type === 'PreviewImage'
+        )
+        .map((n: { id: number | string }) => String(n.id))
+
+      const workflow = graph.serialize() as unknown as Record<string, unknown>
+      const extra = (workflow.extra ?? {}) as Record<string, unknown>
+      extra.linearData = { inputs: inputTuples, outputs: outputNodeIds }
+      workflow.extra = extra
+      await window.app!.loadGraphData(
+        workflow as unknown as Parameters<
+          NonNullable<typeof window.app>['loadGraphData']
+        >[0]
+      )
+    }, inputs)
+    await this.comfyPage.nextFrame()
+    await this.toggleAppMode()
+  }
+
+  /** The linear-mode widget list container (visible in app mode). */
+  get linearWidgets(): Locator {
+    return this.page.locator('[data-testid="linear-widgets"]')
+  }
+
+  /**
+   * Get the actions menu trigger for a widget in the app mode widget list.
+   * @param widgetName Text shown in the widget label (e.g. "seed").
+   */
+  getAppModeWidgetMenu(widgetName: string): Locator {
+    return this.linearWidgets
+      .locator(`div:has(> div > span:text-is("${widgetName}"))`)
+      .getByTestId(TestIds.builder.widgetActionsMenu)
+      .first()
+  }
+
+  /**
+   * Get the actions menu trigger for a widget in the builder input-select
+   * sidebar (IoItem).
+   * @param title The widget title shown in the IoItem.
+   */
+  getBuilderInputItemMenu(title: string): Locator {
+    return this.page
+      .getByTestId(TestIds.builder.ioItem)
+      .filter({ hasText: title })
+      .getByTestId(TestIds.builder.widgetActionsMenu)
+  }
+
+  /**
+   * Get the actions menu trigger for a widget in the builder preview/arrange
+   * sidebar (AppModeWidgetList with builderMode).
+   * @param ariaLabel The aria-label on the widget row, e.g. "seed — KSampler".
+   */
+  getBuilderPreviewWidgetMenu(ariaLabel: string): Locator {
+    return this.page
+      .locator(`[aria-label="${ariaLabel}"]`)
+      .getByTestId(TestIds.builder.widgetActionsMenu)
+  }
+
+  /**
+   * Rename a widget by clicking its popover trigger, selecting "Rename",
+   * and filling in the dialog.
+   * @param popoverTrigger The button that opens the widget's actions popover.
+   * @param newName The new name to assign.
+   */
+  async renameWidget(popoverTrigger: Locator, newName: string) {
+    await popoverTrigger.click()
+    await this.page.getByText('Rename', { exact: true }).click()
+
+    const dialogInput = this.page.locator(
+      '.p-dialog-content input[type="text"]'
+    )
+    await dialogInput.fill(newName)
+    await this.page.keyboard.press('Enter')
+    await dialogInput.waitFor({ state: 'hidden' })
+    await this.comfyPage.nextFrame()
+  }
+}

browser_tests/fixtures/helpers/NodeOperationsHelper.ts

@@ -33,6 +33,7 @@ export class NodeOperationsHelper {
     })
   }
 
+  /** Reads from `window.app.graph` (the root workflow graph). */
   async getNodeCount(): Promise<number> {
     return await this.page.evaluate(() => window.app!.graph.nodes.length)
   }

browser_tests/fixtures/helpers/PerformanceHelper.ts

@@ -8,6 +8,10 @@ interface PerfSnapshot {
   TaskDuration: number
   JSHeapUsedSize: number
   Timestamp: number
+  Nodes: number
+  JSHeapTotalSize: number
+  ScriptDuration: number
+  JSEventListeners: number
 }
 
 export interface PerfMeasurement {
@@ -19,6 +23,12 @@ export interface PerfMeasurement {
   layoutDurationMs: number
   taskDurationMs: number
   heapDeltaBytes: number
+  domNodes: number
+  jsHeapTotalBytes: number
+  scriptDurationMs: number
+  eventListeners: number
+  totalBlockingTimeMs: number
+  frameDurationMs: number
 }
 
 export class PerformanceHelper {
@@ -59,16 +69,100 @@ export class PerformanceHelper {
       LayoutDuration: get('LayoutDuration'),
       TaskDuration: get('TaskDuration'),
       JSHeapUsedSize: get('JSHeapUsedSize'),
-      Timestamp: get('Timestamp')
+      Timestamp: get('Timestamp'),
+      Nodes: get('Nodes'),
+      JSHeapTotalSize: get('JSHeapTotalSize'),
+      ScriptDuration: get('ScriptDuration'),
+      JSEventListeners: get('JSEventListeners')
     }
   }
 
+  /**
+   * Collect longtask entries from PerformanceObserver and compute TBT.
+   * TBT = sum of (duration - 50ms) for every task longer than 50ms.
+   */
+  private async collectTBT(): Promise<number> {
+    return this.page.evaluate(() => {
+      const state = (window as unknown as Record<string, unknown>)
+        .__perfLongtaskState as
+        | { observer: PerformanceObserver; tbtMs: number }
+        | undefined
+      if (!state) return 0
+
+      // Flush any queued-but-undelivered entries into our accumulator
+      for (const entry of state.observer.takeRecords()) {
+        if (entry.duration > 50) state.tbtMs += entry.duration - 50
+      }
+      const result = state.tbtMs
+      state.tbtMs = 0
+      return result
+    })
+  }
+
+  /**
+   * Measure average frame duration via rAF timing over a sample window.
+   * Returns average ms per frame (lower = better, 16.67 = 60fps).
+   */
+  private async measureFrameDuration(sampleFrames = 10): Promise<number> {
+    return this.page.evaluate((frames) => {
+      return new Promise<number>((resolve) => {
+        const timeout = setTimeout(() => resolve(0), 5000)
+        const timestamps: number[] = []
+        let count = 0
+        function tick(ts: number) {
+          timestamps.push(ts)
+          count++
+          if (count <= frames) {
+            requestAnimationFrame(tick)
+          } else {
+            clearTimeout(timeout)
+            if (timestamps.length < 2) {
+              resolve(0)
+              return
+            }
+            const total = timestamps[timestamps.length - 1] - timestamps[0]
+            resolve(total / (timestamps.length - 1))
+          }
+        }
+        requestAnimationFrame(tick)
+      })
+    }, sampleFrames)
+  }
+
   async startMeasuring(): Promise<void> {
     if (this.snapshot) {
       throw new Error(
         'Measurement already in progress — call stopMeasuring() first'
       )
     }
+    // Install longtask observer if not already present, then reset the
+    // accumulator so old longtasks don't bleed into the new measurement window.
+    await this.page.evaluate(() => {
+      const win = window as unknown as Record<string, unknown>
+      if (!win.__perfLongtaskState) {
+        const state: { observer: PerformanceObserver; tbtMs: number } = {
+          observer: new PerformanceObserver((list) => {
+            const self = (window as unknown as Record<string, unknown>)
+              .__perfLongtaskState as {
+              observer: PerformanceObserver
+              tbtMs: number
+            }
+            for (const entry of list.getEntries()) {
+              if (entry.duration > 50) self.tbtMs += entry.duration - 50
+            }
+          }),
+          tbtMs: 0
+        }
+        state.observer.observe({ type: 'longtask', buffered: true })
+        win.__perfLongtaskState = state
+      }
+      const state = win.__perfLongtaskState as {
+        observer: PerformanceObserver
+        tbtMs: number
+      }
+      state.tbtMs = 0
+      state.observer.takeRecords()
+    })
     this.snapshot = await this.getSnapshot()
   }
 
@@ -82,6 +176,11 @@ export class PerformanceHelper {
       return after[key] - before[key]
     }
 
+    const [totalBlockingTimeMs, frameDurationMs] = await Promise.all([
+      this.collectTBT(),
+      this.measureFrameDuration()
+    ])
+
     return {
       name,
       durationMs: delta('Timestamp') * 1000,
@@ -90,7 +189,13 @@ export class PerformanceHelper {
       layouts: delta('LayoutCount'),
       layoutDurationMs: delta('LayoutDuration') * 1000,
       taskDurationMs: delta('TaskDuration') * 1000,
-      heapDeltaBytes: delta('JSHeapUsedSize')
+      heapDeltaBytes: delta('JSHeapUsedSize'),
+      domNodes: delta('Nodes'),
+      jsHeapTotalBytes: delta('JSHeapTotalSize'),
+      scriptDurationMs: delta('ScriptDuration') * 1000,
+      eventListeners: delta('JSEventListeners'),
+      totalBlockingTimeMs,
+      frameDurationMs
     }
   }
 }

browser_tests/fixtures/helpers/SubgraphHelper.ts

@@ -1,3 +1,4 @@
+import { expect } from '@playwright/test'
 import type { Page } from '@playwright/test'
 
 import type {
@@ -6,6 +7,7 @@ import type {
 } from '@/lib/litegraph/src/litegraph'
 
 import type { ComfyPage } from '../ComfyPage'
+import { TestIds } from '../selectors'
 import type { NodeReference } from '../utils/litegraphUtils'
 import { SubgraphSlotReference } from '../utils/litegraphUtils'
 
@@ -322,4 +324,93 @@ export class SubgraphHelper {
     )
     await this.comfyPage.nextFrame()
   }
+
+  async isInSubgraph(): Promise<boolean> {
+    return this.page.evaluate(() => {
+      const graph = window.app!.canvas.graph
+      return !!graph && 'inputNode' in graph
+    })
+  }
+
+  async exitViaBreadcrumb(): Promise<void> {
+    const breadcrumb = this.page.getByTestId(TestIds.breadcrumb.subgraph)
+    const parentLink = breadcrumb.getByRole('link').first()
+    if (await parentLink.isVisible()) {
+      await parentLink.click()
+    } else {
+      await this.page.evaluate(() => {
+        const canvas = window.app!.canvas
+        const graph = canvas.graph
+        if (!graph) return
+        canvas.setGraph(graph.rootGraph)
+      })
+    }
+
+    await this.comfyPage.nextFrame()
+    await expect.poll(async () => this.isInSubgraph()).toBe(false)
+  }
+
+  async countGraphPseudoPreviewEntries(): Promise<number> {
+    return this.page.evaluate(() => {
+      const graph = window.app!.graph!
+      return graph.nodes.reduce((count, node) => {
+        const proxyWidgets = node.properties?.proxyWidgets
+        if (!Array.isArray(proxyWidgets)) return count
+
+        return (
+          count +
+          proxyWidgets.filter(
+            (entry) =>
+              Array.isArray(entry) &&
+              entry.length >= 2 &&
+              typeof entry[1] === 'string' &&
+              entry[1].startsWith('$$')
+          ).length
+        )
+      }, 0)
+    })
+  }
+
+  async getHostPromotedTupleSnapshot(): Promise<
+    { hostNodeId: string; promotedWidgets: [string, string][] }[]
+  > {
+    return this.page.evaluate(() => {
+      const graph = window.app!.canvas.graph!
+      return graph._nodes
+        .filter(
+          (node) =>
+            typeof node.isSubgraphNode === 'function' && node.isSubgraphNode()
+        )
+        .map((node) => {
+          const proxyWidgets = Array.isArray(node.properties?.proxyWidgets)
+            ? node.properties.proxyWidgets
+            : []
+          const promotedWidgets = proxyWidgets
+            .filter(
+              (entry): entry is [string, string] =>
+                Array.isArray(entry) &&
+                entry.length >= 2 &&
+                typeof entry[0] === 'string' &&
+                typeof entry[1] === 'string'
+            )
+            .map(
+              ([interiorNodeId, widgetName]) =>
+                [interiorNodeId, widgetName] as [string, string]
+            )
+
+          return {
+            hostNodeId: String(node.id),
+            promotedWidgets
+          }
+        })
+        .sort((a, b) => Number(a.hostNodeId) - Number(b.hostNodeId))
+    })
+  }
+
+  /** Reads from `window.app.canvas.graph` (viewed root or nested subgraph). */
+  async getNodeCount(): Promise<number> {
+    return this.page.evaluate(() => {
+      return window.app!.canvas.graph!.nodes?.length || 0
+    })
+  }
 }

browser_tests/fixtures/selectors.ts

@@ -42,6 +42,16 @@ export const TestIds = {
   propertiesPanel: {
     root: 'properties-panel'
   },
+  subgraphEditor: {
+    toggle: 'subgraph-editor-toggle',
+    shownSection: 'subgraph-editor-shown-section',
+    hiddenSection: 'subgraph-editor-hidden-section',
+    widgetToggle: 'subgraph-widget-toggle',
+    widgetLabel: 'subgraph-widget-label',
+    iconLink: 'icon-link',
+    iconEye: 'icon-eye',
+    widgetActionsMenuButton: 'widget-actions-menu-button'
+  },
   node: {
     titleInput: 'node-title-input'
   },
@@ -51,12 +61,21 @@ export const TestIds = {
     colorBlue: 'blue',
     colorRed: 'red'
   },
+  menu: {
+    moreMenuContent: 'more-menu-content'
+  },
   widgets: {
+    container: 'node-widgets',
+    widget: 'node-widget',
     decrement: 'decrement',
     increment: 'increment',
     domWidgetTextarea: 'dom-widget-textarea',
     subgraphEnterButton: 'subgraph-enter-button'
   },
+  builder: {
+    ioItem: 'builder-io-item',
+    widgetActionsMenu: 'widget-actions-menu'
+  },
   breadcrumb: {
     subgraph: 'subgraph-breadcrumb'
   },
@@ -83,9 +102,12 @@ export type TestIdValue =
   | (typeof TestIds.node)[keyof typeof TestIds.node]
   | (typeof TestIds.selectionToolbox)[keyof typeof TestIds.selectionToolbox]
   | (typeof TestIds.widgets)[keyof typeof TestIds.widgets]
+  | (typeof TestIds.builder)[keyof typeof TestIds.builder]
   | (typeof TestIds.breadcrumb)[keyof typeof TestIds.breadcrumb]
   | Exclude<
       (typeof TestIds.templates)[keyof typeof TestIds.templates],
       (id: string) => string
     >
   | (typeof TestIds.user)[keyof typeof TestIds.user]
+  | (typeof TestIds.menu)[keyof typeof TestIds.menu]
+  | (typeof TestIds.subgraphEditor)[keyof typeof TestIds.subgraphEditor]

browser_tests/fixtures/utils/litegraphUtils.ts

@@ -281,6 +281,14 @@ export class NodeReference {
   getType(): Promise<string> {
     return this.getProperty('type')
   }
+  async centerOnNode(): Promise<void> {
+    await this.comfyPage.page.evaluate((id) => {
+      const node = window.app!.canvas.graph!.getNodeById(id)
+      if (!node) throw new Error(`Node ${id} not found`)
+      window.app!.canvas.centerOnNode(node)
+    }, this.id)
+    await this.comfyPage.nextFrame()
+  }
   async getPosition(): Promise<Position> {
     const pos = await this.comfyPage.canvasOps.convertOffsetToCanvas(
       await this.getProperty<[number, number]>('pos')

browser_tests/fixtures/utils/slotBoundsUtil.ts

@@ -0,0 +1,98 @@
+import { expect } from '@playwright/test'
+import type { Page } from '@playwright/test'
+
+export interface SlotMeasurement {
+  key: string
+  offsetX: number
+  offsetY: number
+}
+
+export interface NodeSlotData {
+  nodeId: string
+  nodeW: number
+  nodeH: number
+  slots: SlotMeasurement[]
+}
+
+/**
+ * Collect slot center offsets relative to the parent node element.
+ * Returns `null` when the node element is not found.
+ */
+export async function measureNodeSlotOffsets(
+  page: Page,
+  nodeId: string
+): Promise<NodeSlotData | null> {
+  return page.evaluate((id) => {
+    const nodeEl = document.querySelector(`[data-node-id="${id}"]`)
+    if (!nodeEl || !(nodeEl instanceof HTMLElement)) return null
+
+    const nodeRect = nodeEl.getBoundingClientRect()
+    const slotEls = nodeEl.querySelectorAll('[data-slot-key]')
+    const slots: SlotMeasurement[] = []
+
+    for (const slotEl of slotEls) {
+      const slotRect = slotEl.getBoundingClientRect()
+      slots.push({
+        key: (slotEl as HTMLElement).dataset.slotKey ?? 'unknown',
+        offsetX: slotRect.left + slotRect.width / 2 - nodeRect.left,
+        offsetY: slotRect.top + slotRect.height / 2 - nodeRect.top
+      })
+    }
+
+    return {
+      nodeId: id,
+      nodeW: nodeRect.width,
+      nodeH: nodeRect.height,
+      slots
+    }
+  }, nodeId)
+}
+
+/**
+ * Assert that every slot falls within the node dimensions (± `margin` px).
+ */
+export function expectSlotsWithinBounds(
+  data: NodeSlotData,
+  margin: number,
+  label?: string
+) {
+  const prefix = label ? `${label}: ` : ''
+
+  for (const slot of data.slots) {
+    expect(
+      slot.offsetX,
+      `${prefix}Slot ${slot.key} X=${slot.offsetX} outside width=${data.nodeW}`
+    ).toBeGreaterThanOrEqual(-margin)
+    expect(
+      slot.offsetX,
+      `${prefix}Slot ${slot.key} X=${slot.offsetX} outside width=${data.nodeW}`
+    ).toBeLessThanOrEqual(data.nodeW + margin)
+
+    expect(
+      slot.offsetY,
+      `${prefix}Slot ${slot.key} Y=${slot.offsetY} outside height=${data.nodeH}`
+    ).toBeGreaterThanOrEqual(-margin)
+    expect(
+      slot.offsetY,
+      `${prefix}Slot ${slot.key} Y=${slot.offsetY} outside height=${data.nodeH}`
+    ).toBeLessThanOrEqual(data.nodeH + margin)
+  }
+}
+
+/**
+ * Wait for slots, measure, and assert within bounds — single-node convenience.
+ */
+export async function assertNodeSlotsWithinBounds(
+  page: Page,
+  nodeId: string,
+  margin: number = 20
+) {
+  await page
+    .locator(`[data-node-id="${nodeId}"] [data-slot-key]`)
+    .first()
+    .waitFor()
+
+  const data = await measureNodeSlotOffsets(page, nodeId)
+  expect(data, `Node ${nodeId} not found in DOM`).not.toBeNull()
+  expectSlotsWithinBounds(data!, margin, `Node ${nodeId}`)
+}

browser_tests/helpers/promotedWidgets.ts

@@ -2,6 +2,11 @@ import type { ComfyPage } from '../fixtures/ComfyPage'
 
 export type PromotedWidgetEntry = [string, string]
 
+export interface PromotedWidgetSnapshot {
+  proxyWidgets: PromotedWidgetEntry[]
+  widgetNames: string[]
+}
+
 export function isPromotedWidgetEntry(
   entry: unknown
 ): entry is PromotedWidgetEntry {
@@ -32,6 +37,28 @@ export async function getPromotedWidgets(
   return normalizePromotedWidgets(raw)
 }
 
+export async function getPromotedWidgetSnapshot(
+  comfyPage: ComfyPage,
+  nodeId: string
+): Promise<PromotedWidgetSnapshot> {
+  const raw = await comfyPage.page.evaluate((id) => {
+    const node = window.app!.canvas.graph!.getNodeById(id)
+    return {
+      proxyWidgets: node?.properties?.proxyWidgets ?? [],
+      widgetNames: (node?.widgets ?? []).map((widget) => widget.name)
+    }
+  }, nodeId)
+
+  return {
+    proxyWidgets: normalizePromotedWidgets(raw.proxyWidgets),
+    widgetNames: Array.isArray(raw.widgetNames)
+      ? raw.widgetNames.filter(
+          (name): name is string => typeof name === 'string'
+        )
+      : []
+  }
+}
+
 export async function getPromotedWidgetNames(
   comfyPage: ComfyPage,
   nodeId: string
@@ -48,6 +75,26 @@ export async function getPromotedWidgetCount(
   return promotedWidgets.length
 }
 
+export function isPseudoPreviewEntry(entry: PromotedWidgetEntry): boolean {
+  return entry[1].startsWith('$$')
+}
+
+export async function getPseudoPreviewWidgets(
+  comfyPage: ComfyPage,
+  nodeId: string
+): Promise<PromotedWidgetEntry[]> {
+  const widgets = await getPromotedWidgets(comfyPage, nodeId)
+  return widgets.filter(isPseudoPreviewEntry)
+}
+
+export async function getNonPreviewPromotedWidgets(
+  comfyPage: ComfyPage,
+  nodeId: string
+): Promise<PromotedWidgetEntry[]> {
+  const widgets = await getPromotedWidgets(comfyPage, nodeId)
+  return widgets.filter((entry) => !isPseudoPreviewEntry(entry))
+}
+
 export async function getPromotedWidgetCountByName(
   comfyPage: ComfyPage,
   nodeId: string,

browser_tests/helpers/subgraphTestUtils.ts

@@ -1,3 +1,5 @@
+import type { Page } from '@playwright/test'
+
 import type { LGraph, Subgraph } from '../../src/lib/litegraph/src/litegraph'
 import { isSubgraph } from '../../src/utils/typeGuardUtil'
 
@@ -14,3 +16,30 @@ export function assertSubgraph(
     )
   }
 }
+
+/**
+ * Returns the widget-input slot Y position and the node title height
+ * for the promoted "text" input on the SubgraphNode.
+ *
+ * The slot Y should be at the widget row, not the header. A value near
+ * zero or negative indicates the slot is positioned at the header (the bug).
+ */
+export function getTextSlotPosition(page: Page, nodeId: string) {
+  return page.evaluate((id) => {
+    const node = window.app!.canvas.graph!.getNodeById(id)
+    if (!node) return null
+
+    const titleHeight = window.LiteGraph!.NODE_TITLE_HEIGHT
+
+    for (const input of node.inputs) {
+      if (!input.widget || input.type !== 'STRING') continue
+      return {
+        hasPos: !!input.pos,
+        posY: input.pos?.[1] ?? null,
+        widgetName: input.widget.name,
+        titleHeight
+      }
+    }
+    return null
+  }, nodeId)
+}

browser_tests/tests/appModeDropdownClipping.spec.ts

@@ -0,0 +1,168 @@
+import type { Page } from '@playwright/test'
+
+import {
+  comfyPageFixture as test,
+  comfyExpect as expect
+} from '../fixtures/ComfyPage'
+
+/**
+ * Default workflow widget inputs as [nodeId, widgetName] tuples.
+ * All widgets from the default graph are selected so the panel scrolls,
+ * pushing the last widget's dropdown to the clipping boundary.
+ */
+const DEFAULT_INPUTS: [string, string][] = [
+  ['4', 'ckpt_name'],
+  ['6', 'text'],
+  ['7', 'text'],
+  ['5', 'width'],
+  ['5', 'height'],
+  ['5', 'batch_size'],
+  ['3', 'seed'],
+  ['3', 'steps'],
+  ['3', 'cfg'],
+  ['3', 'sampler_name'],
+  ['3', 'scheduler'],
+  ['3', 'denoise'],
+  ['9', 'filename_prefix']
+]
+
+function isClippedByAnyAncestor(el: Element): boolean {
+  const child = el.getBoundingClientRect()
+  let parent = el.parentElement
+
+  while (parent) {
+    const overflow = getComputedStyle(parent).overflow
+    if (overflow !== 'visible') {
+      const p = parent.getBoundingClientRect()
+      if (
+        child.top < p.top ||
+        child.bottom > p.bottom ||
+        child.left < p.left ||
+        child.right > p.right
+      ) {
+        return true
+      }
+    }
+    parent = parent.parentElement
+  }
+  return false
+}
+
+/** Add a node to the graph by type and return its ID. */
+async function addNode(page: Page, nodeType: string): Promise<string> {
+  return page.evaluate((type) => {
+    const node = window.app!.graph.add(
+      window.LiteGraph!.createNode(type, undefined, {})
+    )
+    return String(node!.id)
+  }, nodeType)
+}
+
+test.describe('App mode dropdown clipping', { tag: '@ui' }, () => {
+  test.beforeEach(async ({ comfyPage }) => {
+    await comfyPage.page.evaluate(() => {
+      window.app!.api.serverFeatureFlags.value = {
+        ...window.app!.api.serverFeatureFlags.value,
+        linear_toggle_enabled: true
+      }
+    })
+    await comfyPage.settings.setSetting('Comfy.UseNewMenu', 'Top')
+  })
+
+  test('Select dropdown is not clipped in app mode panel', async ({
+    comfyPage
+  }) => {
+    const saveVideoId = await addNode(comfyPage.page, 'SaveVideo')
+    await comfyPage.nextFrame()
+
+    const inputs: [string, string][] = [
+      ...DEFAULT_INPUTS,
+      [saveVideoId, 'codec']
+    ]
+    await comfyPage.appMode.enterAppModeWithInputs(inputs)
+
+    await expect(comfyPage.appMode.linearWidgets).toBeVisible({
+      timeout: 5000
+    })
+
+    // Scroll to bottom so the codec widget is at the clipping edge
+    const widgetList = comfyPage.appMode.linearWidgets
+    await widgetList.evaluate((el) =>
+      el.scrollTo({ top: el.scrollHeight, behavior: 'instant' })
+    )
+
+    // Click the codec select (combobox role with aria-label from WidgetSelectDefault)
+    const codecSelect = widgetList.getByRole('combobox', { name: 'codec' })
+    await codecSelect.click()
+
+    const overlay = comfyPage.page.locator('.p-select-overlay').first()
+    await expect(overlay).toBeVisible({ timeout: 5000 })
+
+    const isInViewport = await overlay.evaluate((el) => {
+      const rect = el.getBoundingClientRect()
+      return (
+        rect.top >= 0 &&
+        rect.left >= 0 &&
+        rect.bottom <= window.innerHeight &&
+        rect.right <= window.innerWidth
+      )
+    })
+    expect(isInViewport).toBe(true)
+
+    const isClipped = await overlay.evaluate(isClippedByAnyAncestor)
+    expect(isClipped).toBe(false)
+  })
+
+  test('FormDropdown popup is not clipped in app mode panel', async ({
+    comfyPage
+  }) => {
+    const loadImageId = await addNode(comfyPage.page, 'LoadImage')
+    await comfyPage.nextFrame()
+
+    const inputs: [string, string][] = [
+      ...DEFAULT_INPUTS,
+      [loadImageId, 'image']
+    ]
+    await comfyPage.appMode.enterAppModeWithInputs(inputs)
+
+    await expect(comfyPage.appMode.linearWidgets).toBeVisible({
+      timeout: 5000
+    })
+
+    // Scroll to bottom so the image widget is at the clipping edge
+    const widgetList = comfyPage.appMode.linearWidgets
+    await widgetList.evaluate((el) =>
+      el.scrollTo({ top: el.scrollHeight, behavior: 'instant' })
+    )
+
+    // Click the FormDropdown trigger button for the image widget.
+    // The button emits 'select-click' which toggles the Popover.
+    const imageRow = widgetList.locator(
+      'div:has(> div > span:text-is("image"))'
+    )
+    const dropdownButton = imageRow.locator('button:has(> span)').first()
+    await dropdownButton.click()
+
+    // The unstyled PrimeVue Popover renders with role="dialog".
+    // Locate the one containing the image grid (filter buttons like "All", "Inputs").
+    const popover = comfyPage.page
+      .getByRole('dialog')
+      .filter({ has: comfyPage.page.getByRole('button', { name: 'All' }) })
+      .first()
+    await expect(popover).toBeVisible({ timeout: 5000 })
+
+    const isInViewport = await popover.evaluate((el) => {
+      const rect = el.getBoundingClientRect()
+      return (
+        rect.top >= 0 &&
+        rect.left >= 0 &&
+        rect.bottom <= window.innerHeight &&
+        rect.right <= window.innerWidth
+      )
+    })
+    expect(isInViewport).toBe(true)
+
+    const isClipped = await popover.evaluate(isClippedByAnyAncestor)
+    expect(isClipped).toBe(false)
+  })
+})

browser_tests/tests/appModeWidgetRename.spec.ts

@@ -0,0 +1,167 @@
+import type { ComfyPage } from '../fixtures/ComfyPage'
+import {
+  comfyPageFixture as test,
+  comfyExpect as expect
+} from '../fixtures/ComfyPage'
+import { fitToViewInstant } from '../helpers/fitToView'
+import { getPromotedWidgetNames } from '../helpers/promotedWidgets'
+
+/**
+ * Convert the KSampler (id 3) in the default workflow to a subgraph,
+ * enter builder, select the promoted seed widget as input and
+ * SaveImage/PreviewImage as output.
+ *
+ * Returns the subgraph node reference for further interaction.
+ */
+async function setupSubgraphBuilder(comfyPage: ComfyPage) {
+  const { page, appMode } = comfyPage
+  await comfyPage.workflow.loadWorkflow('default')
+
+  const ksampler = await comfyPage.nodeOps.getNodeRefById('3')
+  await ksampler.click('title')
+  const subgraphNode = await ksampler.convertToSubgraph()
+  await comfyPage.nextFrame()
+
+  const subgraphNodeId = String(subgraphNode.id)
+  const promotedNames = await getPromotedWidgetNames(comfyPage, subgraphNodeId)
+  expect(promotedNames).toContain('seed')
+
+  await fitToViewInstant(comfyPage)
+  await appMode.enterBuilder()
+  await appMode.goToInputs()
+
+  // Reset zoom to 1 and center on the subgraph node so click coords are accurate
+  await comfyPage.canvasOps.setScale(1)
+  await subgraphNode.centerOnNode()
+
+  // Click the promoted seed widget on the canvas to select it
+  const seedWidgetRef = await subgraphNode.getWidget(0)
+  const seedPos = await seedWidgetRef.getPosition()
+  const titleHeight = await page.evaluate(
+    () => window.LiteGraph!['NODE_TITLE_HEIGHT'] as number
+  )
+
+  await page.mouse.click(seedPos.x, seedPos.y + titleHeight)
+  await comfyPage.nextFrame()
+
+  // Select an output node
+  await appMode.goToOutputs()
+
+  const saveImageNodeId = await page.evaluate(() =>
+    String(
+      window.app!.rootGraph.nodes.find(
+        (n: { type?: string }) =>
+          n.type === 'SaveImage' || n.type === 'PreviewImage'
+      )?.id
+    )
+  )
+  const saveImageRef = await comfyPage.nodeOps.getNodeRefById(saveImageNodeId)
+  await saveImageRef.centerOnNode()
+
+  // Node is centered on screen, so click the canvas center
+  const canvasBox = await page.locator('#graph-canvas').boundingBox()
+  if (!canvasBox) throw new Error('Canvas not found')
+  await page.mouse.click(
+    canvasBox.x + canvasBox.width / 2,
+    canvasBox.y + canvasBox.height / 2
+  )
+  await comfyPage.nextFrame()
+
+  return subgraphNode
+}
+
+/** Save the workflow, reopen it, and enter app mode. */
+async function saveAndReopenInAppMode(
+  comfyPage: ComfyPage,
+  workflowName: string
+) {
+  await comfyPage.menu.topbar.saveWorkflow(workflowName)
+
+  const { workflowsTab } = comfyPage.menu
+  await workflowsTab.open()
+  await workflowsTab.getPersistedItem(workflowName).dblclick()
+  await comfyPage.nextFrame()
+
+  await comfyPage.appMode.toggleAppMode()
+}
+
+test.describe('App mode widget rename', { tag: ['@ui', '@subgraph'] }, () => {
+  test.beforeEach(async ({ comfyPage }) => {
+    await comfyPage.page.evaluate(() => {
+      window.app!.api.serverFeatureFlags.value = {
+        ...window.app!.api.serverFeatureFlags.value,
+        linear_toggle_enabled: true
+      }
+    })
+    await comfyPage.settings.setSetting('Comfy.UseNewMenu', 'Top')
+    await comfyPage.settings.setSetting(
+      'Comfy.AppBuilder.VueNodeSwitchDismissed',
+      true
+    )
+  })
+
+  test('Rename from builder input-select sidebar', async ({ comfyPage }) => {
+    const { appMode } = comfyPage
+    await setupSubgraphBuilder(comfyPage)
+
+    // Go back to inputs step where IoItems are shown
+    await appMode.goToInputs()
+
+    const menu = appMode.getBuilderInputItemMenu('seed')
+    await expect(menu).toBeVisible({ timeout: 5000 })
+    await appMode.renameWidget(menu, 'Builder Input Seed')
+
+    // Verify in app mode after save/reload
+    await appMode.exitBuilder()
+    const workflowName = `${new Date().getTime()} builder-input`
+    await saveAndReopenInAppMode(comfyPage, workflowName)
+
+    await expect(appMode.linearWidgets).toBeVisible({ timeout: 5000 })
+    await expect(
+      appMode.linearWidgets.getByText('Builder Input Seed')
+    ).toBeVisible()
+  })
+
+  test('Rename from builder preview sidebar', async ({ comfyPage }) => {
+    const { appMode } = comfyPage
+    await setupSubgraphBuilder(comfyPage)
+
+    await appMode.goToPreview()
+
+    const menu = appMode.getBuilderPreviewWidgetMenu('seed — New Subgraph')
+    await expect(menu).toBeVisible({ timeout: 5000 })
+    await appMode.renameWidget(menu, 'Preview Seed')
+
+    // Verify in app mode after save/reload
+    await appMode.exitBuilder()
+    const workflowName = `${new Date().getTime()} builder-preview`
+    await saveAndReopenInAppMode(comfyPage, workflowName)
+
+    await expect(appMode.linearWidgets).toBeVisible({ timeout: 5000 })
+    await expect(appMode.linearWidgets.getByText('Preview Seed')).toBeVisible()
+  })
+
+  test('Rename from app mode', async ({ comfyPage }) => {
+    const { appMode } = comfyPage
+    await setupSubgraphBuilder(comfyPage)
+
+    // Enter app mode from builder
+    await appMode.exitBuilder()
+    await appMode.toggleAppMode()
+
+    await expect(appMode.linearWidgets).toBeVisible({ timeout: 5000 })
+
+    const menu = appMode.getAppModeWidgetMenu('seed')
+    await appMode.renameWidget(menu, 'App Mode Seed')
+
+    await expect(appMode.linearWidgets.getByText('App Mode Seed')).toBeVisible()
+
+    // Verify persistence after save/reload
+    await appMode.toggleAppMode()
+    const workflowName = `${new Date().getTime()} app-mode`
+    await saveAndReopenInAppMode(comfyPage, workflowName)
+
+    await expect(appMode.linearWidgets).toBeVisible({ timeout: 5000 })
+    await expect(appMode.linearWidgets.getByText('App Mode Seed')).toBeVisible()
+  })
+})

browser_tests/tests/collapsedNodeLinks.spec.ts

@@ -0,0 +1,68 @@
+import { expect } from '@playwright/test'
+
+import { comfyPageFixture as test } from '../fixtures/ComfyPage'
+import { assertNodeSlotsWithinBounds } from '../fixtures/utils/slotBoundsUtil'
+
+const NODE_ID = '3'
+const NODE_TITLE = 'KSampler'
+
+test.describe(
+  'Collapsed node link positions',
+  { tag: ['@canvas', '@node'] },
+  () => {
+    test.beforeEach(async ({ comfyPage }) => {
+      await comfyPage.settings.setSetting('Comfy.VueNodes.Enabled', true)
+      await comfyPage.workflow.loadWorkflow('default')
+      await comfyPage.vueNodes.waitForNodes()
+    })
+
+    test.afterEach(async ({ comfyPage }) => {
+      await comfyPage.canvasOps.resetView()
+    })
+
+    test('link endpoints stay within collapsed node bounds', async ({
+      comfyPage
+    }) => {
+      const node = await comfyPage.vueNodes.getFixtureByTitle(NODE_TITLE)
+      await node.toggleCollapse()
+      await comfyPage.nextFrame()
+
+      await assertNodeSlotsWithinBounds(comfyPage.page, NODE_ID)
+    })
+
+    test('links follow collapsed node after drag', async ({ comfyPage }) => {
+      const node = await comfyPage.vueNodes.getFixtureByTitle(NODE_TITLE)
+      await node.toggleCollapse()
+      await comfyPage.nextFrame()
+
+      const box = await node.boundingBox()
+      expect(box).not.toBeNull()
+      await comfyPage.page.mouse.move(
+        box!.x + box!.width / 2,
+        box!.y + box!.height / 2
+      )
+      await comfyPage.page.mouse.down()
+      await comfyPage.page.mouse.move(
+        box!.x + box!.width / 2 + 200,
+        box!.y + box!.height / 2 + 100,
+        { steps: 10 }
+      )
+      await comfyPage.page.mouse.up()
+      await comfyPage.nextFrame()
+
+      await assertNodeSlotsWithinBounds(comfyPage.page, NODE_ID)
+    })
+
+    test('links recover correct positions after expand', async ({
+      comfyPage
+    }) => {
+      const node = await comfyPage.vueNodes.getFixtureByTitle(NODE_TITLE)
+      await node.toggleCollapse()
+      await comfyPage.nextFrame()
+      await node.toggleCollapse()
+      await comfyPage.nextFrame()
+
+      await assertNodeSlotsWithinBounds(comfyPage.page, NODE_ID)
+    })
+  }
+)

browser_tests/tests/dialog.spec.ts

@@ -1,4 +1,3 @@
-import type { Locator } from '@playwright/test'
 import { expect } from '@playwright/test'
 
 import type { Keybinding } from '../../src/platform/keybindings/types'
@@ -72,6 +71,10 @@ test('Does not report warning on undo/redo', async ({ comfyPage }) => {
 test.describe('Execution error', () => {
   test.beforeEach(async ({ comfyPage }) => {
     await comfyPage.settings.setSetting('Comfy.UseNewMenu', 'Top')
+    await comfyPage.settings.setSetting(
+      'Comfy.RightSidePanel.ShowErrorsTab',
+      true
+    )
     await comfyPage.setup()
   })
 
@@ -88,117 +91,58 @@ test.describe('Execution error', () => {
   })
 })
 
-test.describe('Missing models warning', () => {
-  test('Should be disabled by default in browser tests', async ({
-    comfyPage
-  }) => {
-    await comfyPage.workflow.loadWorkflow('missing/missing_models')
-
-    const dialogTitle = comfyPage.page.getByText(
-      'This workflow is missing models'
-    )
-    await expect(dialogTitle).not.toBeVisible()
-  })
-
+test.describe('Missing models in Error Tab', () => {
   test.beforeEach(async ({ comfyPage }) => {
+    await comfyPage.settings.setSetting('Comfy.UseNewMenu', 'Top')
     await comfyPage.settings.setSetting(
-      'Comfy.Workflow.ShowMissingModelsWarning',
+      'Comfy.RightSidePanel.ShowErrorsTab',
       true
     )
-    await comfyPage.page.evaluate((url: string) => {
-      return fetch(`${url}/api/devtools/cleanup_fake_model`)
+    const cleanupOk = await comfyPage.page.evaluate(async (url: string) => {
+      const response = await fetch(`${url}/api/devtools/cleanup_fake_model`)
+      return response.ok
     }, comfyPage.url)
+    expect(cleanupOk).toBeTruthy()
   })
 
-  test('Should display a warning when missing models are found', async ({
+  test('Should show error overlay with missing models when workflow has missing models', async ({
     comfyPage
   }) => {
     await comfyPage.workflow.loadWorkflow('missing/missing_models')
 
-    const dialogTitle = comfyPage.page.getByText(
-      'This workflow is missing models'
-    )
-    await expect(dialogTitle).toBeVisible()
+    const errorOverlay = comfyPage.page.locator('[data-testid="error-overlay"]')
+    await expect(errorOverlay).toBeVisible()
 
-    const downloadAllButton = comfyPage.page.getByText('Download all')
-    await expect(downloadAllButton).toBeVisible()
+    const missingModelsTitle = comfyPage.page.getByText(/Missing Models/)
+    await expect(missingModelsTitle).toBeVisible()
   })
 
-  test('Should display a warning when missing models are found in node properties', async ({
+  test('Should show missing models from node properties', async ({
     comfyPage
   }) => {
-    // Load workflow that has a node with models metadata at the node level
     await comfyPage.workflow.loadWorkflow(
       'missing/missing_models_from_node_properties'
     )
 
-    const dialogTitle = comfyPage.page.getByText(
-      'This workflow is missing models'
-    )
-    await expect(dialogTitle).toBeVisible()
+    const errorOverlay = comfyPage.page.locator('[data-testid="error-overlay"]')
+    await expect(errorOverlay).toBeVisible()
 
-    const downloadAllButton = comfyPage.page.getByText('Download all')
-    await expect(downloadAllButton).toBeVisible()
+    const missingModelsTitle = comfyPage.page.getByText(/Missing Models/)
+    await expect(missingModelsTitle).toBeVisible()
   })
 
-  test('Should not display a warning when no missing models are found', async ({
+  test('Should not show missing models when widget values have changed', async ({
     comfyPage
   }) => {
-    const modelFoldersRes = {
-      status: 200,
-      body: JSON.stringify([
-        {
-          name: 'text_encoders',
-          folders: ['ComfyUI/models/text_encoders']
-        }
-      ])
-    }
-    await comfyPage.page.route(
-      '**/api/experiment/models',
-      (route) => route.fulfill(modelFoldersRes),
-      { times: 1 }
-    )
-
-    // Reload page to trigger indexing of model folders
-    await comfyPage.setup()
-
-    const clipModelsRes = {
-      status: 200,
-      body: JSON.stringify([
-        {
-          name: 'fake_model.safetensors',
-          pathIndex: 0
-        }
-      ])
-    }
-    await comfyPage.page.route(
-      '**/api/experiment/models/text_encoders',
-      (route) => route.fulfill(clipModelsRes),
-      { times: 1 }
-    )
-
-    await comfyPage.workflow.loadWorkflow('missing/missing_models')
-
-    const dialogTitle = comfyPage.page.getByText(
-      'This workflow is missing models'
-    )
-    await expect(dialogTitle).not.toBeVisible()
-  })
-
-  test('Should not display warning when model metadata exists but widget values have changed', async ({
-    comfyPage
-  }) => {
-    // This tests the scenario where outdated model metadata exists in the workflow
-    // but the actual selected models (widget values) have changed
     await comfyPage.workflow.loadWorkflow(
       'missing/model_metadata_widget_mismatch'
     )
 
-    // The missing models warning should NOT appear
-    const dialogTitle = comfyPage.page.getByText(
-      'This workflow is missing models'
-    )
-    await expect(dialogTitle).not.toBeVisible()
+    const missingModelsTitle = comfyPage.page.getByText(/Missing Models/)
+    await expect(missingModelsTitle).not.toBeVisible()
+
+    const errorOverlay = comfyPage.page.locator('[data-testid="error-overlay"]')
+    await expect(errorOverlay).not.toBeVisible()
   })
 
   // Flaky test after parallelization
@@ -206,14 +150,10 @@ test.describe('Missing models warning', () => {
   test.skip('Should download missing model when clicking download button', async ({
     comfyPage
   }) => {
-    // The fake_model.safetensors is served by
-    // https://github.com/Comfy-Org/ComfyUI_devtools/blob/main/__init__.py
     await comfyPage.workflow.loadWorkflow('missing/missing_models')
 
-    const dialogTitle = comfyPage.page.getByText(
-      'This workflow is missing models'
-    )
-    await expect(dialogTitle).toBeVisible()
+    const errorOverlay = comfyPage.page.locator('[data-testid="error-overlay"]')
+    await expect(errorOverlay).toBeVisible()
 
     const downloadAllButton = comfyPage.page.getByText('Download all')
     await expect(downloadAllButton).toBeVisible()
@@ -223,50 +163,6 @@ test.describe('Missing models warning', () => {
     const download = await downloadPromise
     expect(download.suggestedFilename()).toBe('fake_model.safetensors')
   })
-
-  test.describe('Do not show again checkbox', () => {
-    let checkbox: Locator
-    let closeButton: Locator
-
-    test.beforeEach(async ({ comfyPage }) => {
-      await comfyPage.settings.setSetting(
-        'Comfy.Workflow.ShowMissingModelsWarning',
-        true
-      )
-      await comfyPage.workflow.loadWorkflow('missing/missing_models')
-
-      checkbox = comfyPage.page.getByLabel("Don't show this again")
-      closeButton = comfyPage.page.getByLabel('Close')
-    })
-
-    test('Should disable warning dialog when checkbox is checked', async ({
-      comfyPage
-    }) => {
-      const changeSettingPromise = comfyPage.page.waitForRequest(
-        '**/api/settings/Comfy.Workflow.ShowMissingModelsWarning'
-      )
-      await checkbox.click()
-      await changeSettingPromise
-
-      await closeButton.click()
-
-      const settingValue = await comfyPage.settings.getSetting(
-        'Comfy.Workflow.ShowMissingModelsWarning'
-      )
-      expect(settingValue).toBe(false)
-    })
-
-    test('Should keep warning dialog enabled when checkbox is unchecked', async ({
-      comfyPage
-    }) => {
-      await closeButton.click()
-
-      const settingValue = await comfyPage.settings.getSetting(
-        'Comfy.Workflow.ShowMissingModelsWarning'
-      )
-      expect(settingValue).toBe(true)
-    })
-  })
 })
 
 test.describe('Settings', () => {

browser_tests/tests/execution.spec.ts

@@ -9,6 +9,10 @@ test.beforeEach(async ({ comfyPage }) => {
 test.describe('Execution', { tag: ['@smoke', '@workflow'] }, () => {
   test.beforeEach(async ({ comfyPage }) => {
     await comfyPage.settings.setSetting('Comfy.UseNewMenu', 'Top')
+    await comfyPage.settings.setSetting(
+      'Comfy.RightSidePanel.ShowErrorsTab',
+      true
+    )
     await comfyPage.setup()
   })
 

browser_tests/tests/groupCopyPaste.spec.ts

@@ -0,0 +1,44 @@
+import { expect } from '@playwright/test'
+
+import { comfyPageFixture as test } from '../fixtures/ComfyPage'
+
+test.describe('Group Copy Paste', { tag: ['@canvas'] }, () => {
+  test.afterEach(async ({ comfyPage }) => {
+    await comfyPage.canvasOps.resetView()
+  })
+
+  test('Pasted group is offset from original position', async ({
+    comfyPage
+  }) => {
+    await comfyPage.workflow.loadWorkflow('groups/single_group_only')
+
+    const titlePos = await comfyPage.page.evaluate(() => {
+      const app = window.app!
+      const group = app.graph.groups[0]
+      const clientPos = app.canvasPosToClientPos([
+        group.pos[0] + 50,
+        group.pos[1] + 15
+      ])
+      return { x: clientPos[0], y: clientPos[1] }
+    })
+    await comfyPage.canvas.click({ position: titlePos })
+    await comfyPage.nextFrame()
+
+    await comfyPage.clipboard.copy()
+    await comfyPage.clipboard.paste()
+    await comfyPage.nextFrame()
+
+    const positions = await comfyPage.page.evaluate(() =>
+      window.app!.graph.groups.map((g: { pos: number[] }) => ({
+        x: g.pos[0],
+        y: g.pos[1]
+      }))
+    )
+
+    expect(positions).toHaveLength(2)
+    const dx = Math.abs(positions[0].x - positions[1].x)
+    const dy = Math.abs(positions[0].y - positions[1].y)
+    expect(dx).toBeCloseTo(50, 0)
+    expect(dy).toBeCloseTo(15, 0)
+  })
+})

browser_tests/tests/interaction.spec.ts

@@ -10,6 +10,7 @@ import type { ComfyPage } from '../fixtures/ComfyPage'
 import { DefaultGraphPositions } from '../fixtures/constants/defaultGraphPositions'
 import { TestIds } from '../fixtures/selectors'
 import type { NodeReference } from '../fixtures/utils/litegraphUtils'
+import type { WorkspaceStore } from '../types/globals'
 
 test.beforeEach(async ({ comfyPage }) => {
   await comfyPage.settings.setSetting('Comfy.UseNewMenu', 'Disabled')
@@ -720,6 +721,19 @@ test.describe('Load workflow', { tag: '@screenshot' }, () => {
     await expect(comfyPage.canvas).toHaveScreenshot('string_input.png')
   })
 
+  test('Creates initial workflow tab when persistence is disabled', async ({
+    comfyPage
+  }) => {
+    await comfyPage.settings.setSetting('Comfy.Workflow.Persist', false)
+    await comfyPage.setup()
+
+    const openCount = await comfyPage.page.evaluate(() => {
+      return (window.app!.extensionManager as WorkspaceStore).workflow
+        .openWorkflows.length
+    })
+    expect(openCount).toBeGreaterThanOrEqual(1)
+  })
+
   test('Restore workflow on reload (switch workflow)', async ({
     comfyPage
   }) => {
@@ -764,13 +778,13 @@ test.describe('Load workflow', { tag: '@screenshot' }, () => {
     )
   })
 
+  const generateUniqueFilename = (extension = '') =>
+    `${Date.now().toString(36)}-${Math.random().toString(36).slice(2, 8)}${extension}`
+
   test.describe('Restore all open workflows on reload', () => {
     let workflowA: string
     let workflowB: string
 
-    const generateUniqueFilename = (extension = '') =>
-      `${Date.now().toString(36)}-${Math.random().toString(36).slice(2, 8)}${extension}`
-
     test.beforeEach(async ({ comfyPage }) => {
       await comfyPage.settings.setSetting('Comfy.UseNewMenu', 'Top')
 
@@ -829,6 +843,82 @@ test.describe('Load workflow', { tag: '@screenshot' }, () => {
     })
   })
 
+  test.describe('Restore workflow tabs after browser restart', () => {
+    let workflowA: string
+    let workflowB: string
+
+    test.beforeEach(async ({ comfyPage }) => {
+      await comfyPage.settings.setSetting('Comfy.UseNewMenu', 'Top')
+
+      workflowA = generateUniqueFilename()
+      await comfyPage.menu.topbar.saveWorkflow(workflowA)
+      workflowB = generateUniqueFilename()
+      await comfyPage.menu.topbar.triggerTopbarCommand(['New'])
+      await comfyPage.menu.topbar.saveWorkflow(workflowB)
+
+      // Wait for localStorage fallback pointers to be written
+      await comfyPage.page.waitForFunction(() => {
+        for (let i = 0; i < window.localStorage.length; i++) {
+          const key = window.localStorage.key(i)
+          if (key?.startsWith('Comfy.Workflow.LastOpenPaths:')) {
+            return true
+          }
+        }
+        return false
+      })
+
+      // Simulate browser restart: clear sessionStorage (lost on close)
+      // but keep localStorage (survives browser restart)
+      await comfyPage.page.evaluate(() => {
+        sessionStorage.clear()
+      })
+      await comfyPage.setup({ clearStorage: false })
+    })
+
+    test('Restores topbar workflow tabs after browser restart', async ({
+      comfyPage
+    }) => {
+      await comfyPage.settings.setSetting(
+        'Comfy.Workflow.WorkflowTabsPosition',
+        'Topbar'
+      )
+      // Wait for both restored tabs to render (localStorage fallback is async)
+      await expect(
+        comfyPage.page.locator('.workflow-tabs .workflow-label', {
+          hasText: workflowA
+        })
+      ).toBeVisible()
+
+      const tabs = await comfyPage.menu.topbar.getTabNames()
+      const activeWorkflowName = await comfyPage.menu.topbar.getActiveTabName()
+
+      expect(tabs).toEqual(expect.arrayContaining([workflowA, workflowB]))
+      expect(tabs.indexOf(workflowA)).toBeLessThan(tabs.indexOf(workflowB))
+      expect(activeWorkflowName).toEqual(workflowB)
+    })
+
+    test('Restores sidebar workflows after browser restart', async ({
+      comfyPage
+    }) => {
+      await comfyPage.settings.setSetting(
+        'Comfy.Workflow.WorkflowTabsPosition',
+        'Sidebar'
+      )
+      await comfyPage.menu.workflowsTab.open()
+      const openWorkflows =
+        await comfyPage.menu.workflowsTab.getOpenedWorkflowNames()
+      const activeWorkflowName =
+        await comfyPage.menu.workflowsTab.getActiveWorkflowName()
+      expect(openWorkflows).toEqual(
+        expect.arrayContaining([workflowA, workflowB])
+      )
+      expect(openWorkflows.indexOf(workflowA)).toBeLessThan(
+        openWorkflows.indexOf(workflowB)
+      )
+      expect(activeWorkflowName).toEqual(workflowB)
+    })
+  })
+
   test('Auto fit view after loading workflow', async ({ comfyPage }) => {
     await comfyPage.settings.setSetting(
       'Comfy.EnableWorkflowViewRestore',