perf(cloudflare): reuse response-stage invocations

[james-elicx]

Summary

• defer stored response-stage invocation serialization until a Response Store miss
• sanitize props and collect replay headers once for cacheable dispatches
• reuse the prepared invocation for cache identity, rendering context, and revalidation metadata
• preserve standalone regeneration paths that must prepare their own invocation

Performance

Cache hits no longer serialize a stored replay invocation. Cache misses no longer deep-clone props three times or serialize the same stored invocation twice.

Validation

• vp test run tests/cloudflare-response-store-worker.test.ts (3 passed)
• vp test run tests/response-store-data.test.ts from packages/cloudflare (17 passed)
• vp check packages/cloudflare/src/cache/response-store-adapter.worker.ts tests/cloudflare-response-store-worker.test.ts
• vp run @vinext/cloudflare#build
• git diff --check

This preserves Next.js-visible behavior and only changes Cloudflare adapter serialization work, so there is no corresponding Next.js test to port.

[pkg-pr-new]

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@vinext/cloudflare

npm i https://pkg.pr.new/@vinext/cloudflare@3388

create-vinext-app

npm i https://pkg.pr.new/create-vinext-app@3388

@vinext/types

npm i https://pkg.pr.new/@vinext/types@3388

vinext

npm i https://pkg.pr.new/vinext@3388

@cloudflare/workers-response-store

npm i https://pkg.pr.new/@cloudflare/workers-response-store@3388

commit: c7f6853

[github-actions]

Example	Preview	Production	Original
app-router-cloudflare	preview	production
pages-router-cloudflare	preview	production
app-router-playground	preview	production	original
realworld-api-rest	preview	production
nextra-docs-template	preview	production
benchmarks	preview	production
hackernews	preview	production	original
response-store-demo	preview	production
workers-cache	preview	production
kv	preview	production
static-export	preview	production
web	preview	production

[github-actions]

Performance benchmarks

Compared c7f6853 against base 43560b1 using alternating same-runner rounds. Next.js was unchanged and skipped.

1 improved · 0 regressed · 5 within ±1.5%

Scenario	Framework	Baseline	Current	Change
Client bundle size (gzip)	vinext	142.3 KB	142.3 KB	⚫ +0.0%
Client entry size (gzip)	vinext	129.7 KB	129.7 KB	⚫ -0.0%
Dev server cold start	vinext	3.40 s	3.38 s	⚫ -0.7%
Production build time	vinext	3.92 s	3.86 s	🟢 -1.7%
RSC entry closure size (gzip)	vinext	127.9 KB	127.9 KB	⚫ +0.0%
Server bundle size (gzip)	vinext	226.0 KB	226.0 KB	⚫ +0.0%

View detailed results and traces

_{🟢 improvement · 🔴 regression · ⚫ change below 1.5% · paired base/head}

[james-elicx]

/bigbonk review for issues

Time limit: 8 minutes. Complete the review and post all findings within that limit.

[ask-bonk]

LGTM!

github run