Individual skill
esbuild-pro
Use esbuild for extreme-speed builds: bundling, transforming, plugins, and integration into larger pipelines. Use when build speed is the bottleneck.
skills/esbuild-pro/SKILL.md
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# esbuild Pro
A practical guide to esbuild: the Go-written bundler/transformer that's 10–100x faster than JS-based tools — CLI and JS API, bundling, plugins, and how it slots into bigger pipelines (Vite dev, build scripts, CLIs).
## Overview
esbuild does one thing extraordinarily well: **transform and bundle JavaScript/TypeScript fast**, by being written in Go with parallelism from the ground up. It's intentionally narrower than webpack/Rollup (no type checking, limited HMR story, simpler plugin model). Use it where speed matters most: dev transforms, CLI bundling, build-script steps, and as the engine inside other tools.
## When to use
- Bundling CLIs, scripts, and server code where startup speed matters.
- Replacing `tsc`/`babel` in build pipelines for transpile-only steps.
- Vite dev dependency optimization (esbuild under the hood — knowing it helps debug).
- One-off bundling tasks and code transforms in scripts.