Debug Vercel CDN caching — cache hit rate, stale content, revalidation behavior, ISR + PPR, per-request cache reasons (cacheReason) and PPR state (ppr_state), and costs.
Install
npx skills add vercel/vercel-plugin --skill cdn-cachingnpx skills add vercel/vercel-plugin --skill cdn-caching -a claude-code -gnpx skills add vercel/vercel-plugin --skill cdn-caching -a codex -ggemini skills install https://github.com/vercel/vercel-plugin.git --path skills/cdn-cachinggh skill install vercel/vercel-plugin cdn-cachinggit clone --depth 1 https://github.com/vercel/vercel-plugin /tmp/vercel__vercel-plugin
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/vercel__vercel-plugin/skills/cdn-caching ~/.claude/skills/cdn-caching # Claude Code
cp -R /tmp/vercel__vercel-plugin/skills/cdn-caching ~/.agents/skills/cdn-caching # Codex, Cursor, Gemini CLI, Copilot, OpenCode