vercel

Deploy, manage, inspect, and troubleshoot Vercel projects from the command line. Use for Vercel deployments, Vercel Toolbar comments, build failures, projects and teams, environment variables, domains and DNS, logs, metrics, Speed Insights, Core Web Vitals, request traces, usage, activity, alerts, firewall rules, cache, cron jobs, deploy hooks, Edge Config, feature flags (`vercel flags`), integrations, connectors, Blob storage, Container Registry (VCR), microfrontends, rolling releases, custom environments, Sandbox, agent/MCP setup, preview access, local development, or `vercel api` fallback.

Use for packages/cli changes that affect command UX, prompts, help, output layout, progress, success, warnings, errors, JSON/stdout/stderr contracts, non-interactive/agent behavior, copy, or tests for those surfaces. Do not load for implementation-only refactors with unchanged CLI surface.