I Built 25 CLI Tools in One Month — Here's Everything I Learned

I Built 25 CLI Tools in One Month — Here's Everything I Learned Over the past month, I built and published 25 CLI tools on npm. Not toy projects — real tools that solve real problems: performance monitoring, dependency auditing, port scanning, environment validation, log processing, API health checking, and more. Along the way, I discovered patterns that work, patterns that don't, and the non-obvious decisions that separate professional tools from weekend projects. This article distills everything into actionable lessons. The Tools Here's what I built, roughly in order: websnap-reader — Reader mode for the terminal via Chrome DevTools Protocol ghbounty — GitHub bounty aggregator devpitch — Developer portfolio generator pricemon — Price monitoring CLI repo-readme-gen — Auto-generate README files gitpulse — Git repository health checker depcheck-ai — Smart dependency auditor ghprofile-stats — GitHub profile analytics urlmeta-cli — URL metadata extractor repocard-cli — Terminal repo cards