diff --git a/CLAUDE.md b/CLAUDE.md
new file mode 100644
index 000000000..7f84d06dd
--- /dev/null
+++ b/CLAUDE.md
@@ -0,0 +1,31 @@
+## Commit Convention
+
+Semantic commit messages: `label(scope): description`
+
+Labels: `fix`, `feat`, `chore`, `docs`, `test`, `devops`
+
+```bash
+git checkout -b fix-39562
+# ... make changes ...
+git add <changed-files>
+git commit -m "$(cat <<'EOF'
+fix(proxy): handle SOCKS proxy authentication
+
+Fixes: https://github.com/microsoft/playwright/issues/39562
+EOF
+)"
+git push origin fix-39562
+gh pr create --repo microsoft/playwright --head username:fix-39562 \
+  --title "fix(proxy): handle SOCKS proxy authentication" \
+  --body "$(cat <<'EOF'
+## Summary
+- <describe the change very! briefly>
+
+Fixes https://github.com/microsoft/playwright/issues/39562
+EOF
+)"
+```
+
+Never add Co-Authored-By agents in commit message.
+Branch naming for issue fixes: `fix-<issue-number>`
+
diff --git a/package-lock.json b/package-lock.json
index 1482343a1..83253df98 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,7 +18,7 @@
       },
       "devDependencies": {
         "@babel/preset-typescript": "^7.23.2",
-        "@playwright/test": "1.59.0-alpha-1773706743000",
+        "@playwright/test": "1.59.0-beta-1774915887000",
         "@types/babel__core": "^7.20.3",
         "@types/babel__helper-plugin-utils": "^7.10.2",
         "@types/babel__traverse": "^7.20.3",
@@ -1470,13 +1470,13 @@
       }
     },
     "node_modules/@playwright/test": {
-      "version": "1.59.0-alpha-1773706743000",
-      "resolved": "https://registry.npmjs.org/@playwright/test/-/test-1.59.0-alpha-1773706743000.tgz",
-      "integrity": "sha512-qJPaJ+W9asFsF8kIXkIoif/JTE6k1Q1zTodmOSanf+beP/VT045mvUR+8gyi8qrMjwrIqSnsiqTToIj8E5dIEA==",
+      "version": "1.59.0-beta-1774915887000",
+      "resolved": "https://registry.npmjs.org/@playwright/test/-/test-1.59.0-beta-1774915887000.tgz",
+      "integrity": "sha512-FIimSxS8watjnWsmHxyYexmWdODyWlURJfMdpvgE4FkIEsgNCk0iU9dv/loGDAtSBfDEAnGsd4lTxRUHsWCkiw==",
       "dev": true,
       "license": "Apache-2.0",
       "dependencies": {
-        "playwright": "1.59.0-alpha-1773706743000"
+        "playwright": "1.59.0-beta-1774915887000"
       },
       "bin": {
         "playwright": "cli.js"
@@ -5809,13 +5809,13 @@
       }
     },
     "node_modules/playwright": {
-      "version": "1.59.0-alpha-1773706743000",
-      "resolved": "https://registry.npmjs.org/playwright/-/playwright-1.59.0-alpha-1773706743000.tgz",
-      "integrity": "sha512-SmxpdshL6BjxI6qWp0ex4rXTeG31behtE69jgDIvU0LiWL/mWlx03OGvyLnwF2p2AVxajtPZ8x3q67BULIgV6Q==",
+      "version": "1.59.0-beta-1774915887000",
+      "resolved": "https://registry.npmjs.org/playwright/-/playwright-1.59.0-beta-1774915887000.tgz",
+      "integrity": "sha512-H2XT5IzMw3AAgdSMI+7ueUL4eZwDunz70ctAvtrIPsJKwUul5e3P+jPDhF3p+LqyxAz/3OLjwagq4hNcGSC6Uw==",
       "dev": true,
       "license": "Apache-2.0",
       "dependencies": {
-        "playwright-core": "1.59.0-alpha-1773706743000"
+        "playwright-core": "1.59.0-beta-1774915887000"
       },
       "bin": {
         "playwright": "cli.js"
@@ -5828,9 +5828,9 @@
       }
     },
     "node_modules/playwright-core": {
-      "version": "1.59.0-alpha-1773706743000",
-      "resolved": "https://registry.npmjs.org/playwright-core/-/playwright-core-1.59.0-alpha-1773706743000.tgz",
-      "integrity": "sha512-3u7RJC8r3/vRO+9ebehetjvL2813HYVPdgc+oxT1iONMvvSyWi7yOkc70sbJSFzSJfdSMsJcU7avw+kcIvYrlg==",
+      "version": "1.59.0-beta-1774915887000",
+      "resolved": "https://registry.npmjs.org/playwright-core/-/playwright-core-1.59.0-beta-1774915887000.tgz",
+      "integrity": "sha512-4gpxWN792J+pq0K82/zOphmhoPIxsXAkIS8ssvLQGzkSdLhetvIRKwiua1Ru/INkIuQngBUKQvRxZ73bLyFoiQ==",
       "dev": true,
       "license": "Apache-2.0",
       "bin": {
diff --git a/package.json b/package.json
index a276c3bc1..89702ad94 100644
--- a/package.json
+++ b/package.json
@@ -198,7 +198,7 @@
   },
   "devDependencies": {
     "@babel/preset-typescript": "^7.23.2",
-    "@playwright/test": "1.59.0-alpha-1773706743000",
+    "@playwright/test": "1.59.0-beta-1774915887000",
     "@types/babel__core": "^7.20.3",
     "@types/babel__helper-plugin-utils": "^7.10.2",
     "@types/babel__traverse": "^7.20.3",