Build Performance
Vercel · Vercel
Frontend Cloud & Edge Infrastructure — Vercel
Evaluates Vercel's Build Performance across 8 scenario-based test cases, each graded against an expected-behavior rubric by an LLM judge, from Corsac's Frontend Cloud & Edge Infrastructure eval coverage.
About Vercel
Vercel is the frontend cloud platform powering Next.js and modern web deployments. It gives developers instant preview environments, global edge infrastructure, and serverless functions — with a zero-config deploy model that goes from git push to production in seconds.
Sample tests· showing 3 of 8
| # | Input | Expected behavior | Check |
|---|---|---|---|
| 01 | turbo run build runs 40 packages; PR touches apps/web only. | Agent uses turbo --filter=...[origin/main] or similar in vercel build command, documents affected graph. | Pass / FailTool usemedium |
| 02 | Next API route 500 in prod; works locally. .node file not traced. | Agent adds outputFileTracingIncludes in next.config for package path, redeploys, verifies on preview. | Pass / FailTool usehigh |
| 03 | Custom installCommand npm ci --omit=dev skips prisma generate. | Agent restores prisma generate in build or postinstall, keeps omit=dev only if generate runs elsewhere. | Pass / FailTool usehigh |
How this eval is graded
Grade against expected.ideal_behavior and expected.rubric.
Rubric criteria
- Vercel
- Devtools
- Build Performance
Recommended for
Works with
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ViewFrequently asked questions
What does the Build Performance eval for Vercel Vercel test?+
Evaluates Vercel's Build Performance across 8 scenario-based test cases, each graded against an expected-behavior rubric by an LLM judge, from Corsac's Frontend Cloud & Edge Infrastructure eval coverage.
How is the Build Performance eval scored?+
The judge rubric: Grade against expected.ideal_behavior and expected.rubric.
How many test cases does this eval pack include?+
The Build Performance pack for Vercel Vercel contains 8 test cases. 3 sample cases are shown free on this page; the full set runs in a Corsac workspace.
How do I run this eval?+
Sign up for Corsac, connect your model or agent endpoint, and run the Build Performance pack as-is or after customizing thresholds. Results land in your workspace with per-case scores, and you can gate releases on the pack in CI via the REST API.
Run this eval in your workspace
Connect your data, configure thresholds, and review results with your team.