---
name: "esbuild-fast-javascript-bundler"
description: "Bundle, transpile, and minify JavaScript, TypeScript, and CSS at 10-100x the speed of Webpack."
metadata:
  author: "Evan Wallace"
  version: "1.0.0"
  runtime_compatibility:
    - "codex"
    - "claude-code"
    - "cursor"
    - "windsurf"
triggers:
  - "bundle with esbuild script"
  - "minify javascript esbuild"
  - "esbuild custom plugin"
permissions:
  fs_read: true
  fs_write: "workspace"
  shell_exec: false
  net_access: false
---

# esbuild Extremely Fast Go-Powered JavaScript & CSS Bundler

Operates esbuild: writing build scripts using esbuild.build API, configuring entryPoints, bundle: true, minify: true, target (es2022), custom loader plugins, and source map generation.

## When to Invoke
Invoke this skill whenever you need to:
- bundle with esbuild script
- minify javascript esbuild
- esbuild custom plugin

## Execution SOP & Rules
1. Call API: await esbuild.build({ entryPoints: ['src/app.ts'], bundle: true, outfile: 'dist/app.js' }).
2. Specify platform: platform: 'node' for backend bundles or platform: 'browser' for frontend assets.
3. Configure target: target: 'es2022' to output modern clean JavaScript.
4. Enable build context with esbuild.context() for incremental rebuilds and watch server.

## Verification Checklist
- Run local linting, syntax validation, and type-checks before reporting completion.
- Ensure all created or modified files adhere to workspace boundaries and avoid uncommitted secrets.
- Verify tests or build commands exit cleanly with return code 0.