dev-server

Start any project's dev server and monitor it for errors in real-time. Universal — works with Node.js (Next.js, Vite, Remix, Astro, SvelteKit, Nuxt, Angular, Gatsby, Expo), Python (Django, Flask, FastAPI, Uvicorn), Ruby (Rails, Sinatra), Go, Rust (Cargo), Java (Spring Boot, Gradle, Maven), PHP (Laravel, Symfony), Elixir (Phoenix), and Docker Compose. Auto-detects the stack and package manager from project files. Uses the Monitor tool to stream only errors, warnings, and crashes — not routine request logs. Use this skill whenever the user says "start dev server", "run dev", "start the app", "launch the server", "npm run dev", "cargo run", "python manage.py runserver", "rails server", "go run", or anything that implies starting a local development server. Also trigger when the user asks to "monitor the server", "watch the build", "check for errors while I work", or simply "dev".