What it does

Provides a structured diagnosis and remediation guide for frequent Vercel deployment problems across three layers: build pipeline, serverless function runtime, and edge/routing. Includes commands to inspect deployments and logs, common error patterns with root causes, and concrete fixes you can apply and verify.

When to use it

Use this skill when a deployment fails, you see HTTP 5xx/4xx errors from Vercel, functions time out or are throttled, build commands fail, or when debugging environment variable/configuration mismatches between preview and production. Trigger with references to Vercel errors, build failures, function timeouts, or routing problems.

What's included

Scripts: none embedded, but references present and CLI examples provided (Vercel CLI, curl for API).
References: yes — links to Vercel docs and logs usage are included in the skill's references folder.
Instructions: step-by-step diagnosis flow (identify error layer, reproduce locally, check logs, adjust vercel.json, reduce bundle size, update env var scopes), plus quick fixes for BUILD_FAILED, MISSING_BUILD_SCRIPT, FUNCTION_INVOCATION_FAILED, TIMEOUT, THROTTLING, and edge errors.