Dry-run deployments with Vercel CLI
Vercel ships dry-run deployments — agents can now auto-verify framework detection and file manifests before pushing code.
Why it matters
Developer infrastructure is becoming agent-native. Vercel's new dry-run feature with JSON manifest output enables autonomous agents to validate deployments, flag misconfigurations, and iterate without human intervention — a significant step toward agentic CI/CD workflows.
The key facts
10 to knowFeature: vercel deploy --dry command for preview deployments
JSON manifest output includes framework detection, file paths, directory sizes, largest files, file modes, content hashes
Agent use case: agents can verify framework detection, identify missing files, flag oversized assets, update .vercelignore without code uploads
CLI version requirement: v54.17.2 or later
Automation-ready: non-TTY output automatically returns JSON for agentic workflows
vercel deploy --dry command enables preview of framework preset and deployment files
JSON manifest output includes framework detection, file paths, directory size, largest files, file modes, content hashes
Agents can perform pre-deployment checks: verify framework detection, identify missing/unexpected files, flag oversized assets
Agents can iterate on manifest without uploading code or creating deployments
Feature available in Vercel CLI v54.17.2 or later
Go to the source
Vercel Blogvercel.com
Publisher excerpt: You can now preview the framework preset and files that Vercel CLI includes in a deployment before creating one. Run from a linked project:vercel deploy --dry For automation or further inspection, return the complete file manifest as JSON: JSON output includes the detected framework, included and…