feat: Initial agent-skills repo — 4 adapted skills for Mosaic Stack

Skills included: - pr-reviewer: Adapted for Gitea/GitHub via platform-aware scripts (dropped fetch_pr_data.py and add_inline_comment.py, kept generate_review_files.py) - code-review-excellence: Methodology and checklists (React, TS, Python, etc.) - vercel-react-best-practices: 57 rules for React/Next.js performance - tailwind-design-system: Tailwind CSS v4 patterns, CVA, design tokens New shell scripts added to ~/.claude/scripts/git/: - pr-diff.sh: Get PR diff (GitHub gh / Gitea API) - pr-metadata.sh: Get PR metadata as normalized JSON Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-16 16:03:39 -06:00
commit d9bcdc4a8d
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--- a/skills/vercel-react-best-practices/rules/bundle-defer-third-party.md
+++ b/skills/vercel-react-best-practices/rules/bundle-defer-third-party.md
@@ -0,0 +1,49 @@
+---
+title: Defer Non-Critical Third-Party Libraries
+impact: MEDIUM
+impactDescription: loads after hydration
+tags: bundle, third-party, analytics, defer
+---
+
+## Defer Non-Critical Third-Party Libraries
+
+Analytics, logging, and error tracking don't block user interaction. Load them after hydration.
+
+**Incorrect (blocks initial bundle):**
+
+```tsx
+import { Analytics } from '@vercel/analytics/react'
+
+export default function RootLayout({ children }) {
+  return (
+    <html>
+      <body>
+        {children}
+        <Analytics />
+      </body>
+    </html>
+  )
+}
+```
+
+**Correct (loads after hydration):**
+
+```tsx
+import dynamic from 'next/dynamic'
+
+const Analytics = dynamic(
+  () => import('@vercel/analytics/react').then(m => m.Analytics),
+  { ssr: false }
+)
+
+export default function RootLayout({ children }) {
+  return (
+    <html>
+      <body>
+        {children}
+        <Analytics />
+      </body>
+    </html>
+  )
+}
+```