diff --git a/.github/workflows/debug-v1765-e2e.yml b/.github/workflows/debug-v1765-e2e.yml
new file mode 100644
index 0000000..aefeb47
--- /dev/null
+++ b/.github/workflows/debug-v1765-e2e.yml
@@ -0,0 +1,56 @@
+name: Capture v17.6.5 E2E failures
+
+on:
+  push:
+    branches:
+      - feature/v17.6.5-stability
+    paths:
+      - .github/workflows/debug-v1765-e2e.yml
+
+permissions:
+  contents: write
+
+jobs:
+  debug:
+    if: github.actor != 'github-actions[bot]'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+      - run: npm install
+      - run: npx playwright install --with-deps chromium
+      - name: Capture failures
+        run: |
+          npx playwright test --config=tests/playwright.config.mjs --reporter=json > /tmp/pw.json || true
+          node <<'NODE'
+          const fs=require('fs');
+          const r=JSON.parse(fs.readFileSync('/tmp/pw.json','utf8'));
+          const out=[];
+          function walk(suite,path=[]){
+            const here=[...path,(suite.title||'')].filter(Boolean);
+            for(const spec of suite.specs||[]){
+              for(const test of spec.tests||[]){
+                const bad=(test.results||[]).filter(x=>x.status==='failed'||x.status==='timedOut');
+                if(!bad.length)continue;
+                out.push('TEST: '+[...here,spec.title].filter(Boolean).join(' > '));
+                for(const res of bad){
+                  out.push('STATUS: '+res.status);
+                  for(const e of res.errors||[])out.push(String(e.message||e.value||e).slice(0,6000));
+                }
+                out.push('---');
+              }
+            }
+            for(const child of suite.suites||[])walk(child,here);
+          }
+          for(const suite of r.suites||[])walk(suite,[]);
+          fs.writeFileSync('e2e-v1765-failures.txt',out.join('\n')||'NO FAILURES\n');
+          NODE
+      - name: Commit diagnostics
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git add e2e-v1765-failures.txt
+          git commit -m "Capture v17.6.5 E2E failures"
+          git push