web-vitals-cli

CLI tool to set up and analyze Core Web Vitals metrics (LCP, FID, CLS, TTFB, INP)

Installation

npm install -g web-vitals-cli

Usage

Initialize configuration

web-vitals init
web-vitals init --template advanced
web-vitals init --output custom-config.json

Validate configuration

web-vitals validate
web-vitals validate path/to/config.json

View configuration

web-vitals show
web-vitals show --env production
web-vitals show --json

Modify configuration

web-vitals set settings.debug true
web-vitals set settings.logLevel \"warn\"

Compare configurations

web-vitals diff config-dev.json config-prod.json

List templates

web-vitals templates

Templates

| Template | Description | |----------|-------------| | minimal | Bare minimum configuration | | standard | Recommended defaults for most projects | | advanced | Full-featured with security, caching, and multi-environment support |

Why web-vitals-cli?

• Zero dependencies at runtime — just commander and chalk
• Template-based — start with minimal, standard, or advanced presets
• Validation built-in — catch config errors before deployment
• Environment-aware — manage dev/staging/production configs in one file
• Diff support — compare configs across environments

License

MIT