playbook/antigravity-awesome-skills/plugins/antigravity-awesome-skills-.../skills/vercel-optimize/references/support-topics/runtime-cache-reusable-data.md

1.2 KiB

id title status candidateKinds frameworks priority citations maxBriefChars
runtime-cache-reusable-data Runtime Cache for reusable server data active
slow_route
external_api_slow
*
84
https://vercel.com/docs/caching/runtime-cache
https://vercel.com/docs/functions/functions-api-reference/vercel-functions-package
850

Investigation Brief

Runtime Cache is only useful when the same server-side result is reused across requests. Treat it as a measured alternative when CDN response caching is unsafe or incomplete.

Evidence To Check

Use p75/p95 latency, call count, caller routes, and transfer bytes. In source, identify database queries, external API calls, or expensive computations that return the same result for many viewers.

Do Not Recommend When

Skip per-user data, mutations, secrets, one-off requests, or unknown freshness. Skip Runtime Cache when CDN caching solves the route. For Next with Cache Components, check use cache: remote first; use Runtime Cache only as a justified fallback.

Verification

Name the reusable data, observed route or hostname pressure, required freshness window, and the exact call site to wrap.