bunjs-development

name	bunjs-development
description	Build and review Bun.js applications, APIs, scripts, and tooling. Use for Bun runtime behavior, package management, tests, bundling, native APIs, and Node compatibility.

Bun.js Development

Purpose

Help engineers use Bun for fast scripts, services, and tooling while respecting Node compatibility boundaries and production constraints.

Workflow

1. Identify Bun version and whether the project targets Bun-only or Node-compatible execution.
2. Use Bun-native APIs when they simplify code and the runtime target is Bun-only.
3. Keep compatibility notes when using Node libraries or ESM/CJS interop.
4. Prefer bun test, lockfile discipline, and explicit scripts.
5. Check startup, file IO, HTTP server behavior, and bundling assumptions.

Checklist

• bun.lock, install scripts, and supply-chain controls.
• ESM/CJS compatibility and package exports.
• Native Bun.serve, file, shell, SQLite, and bundler APIs.
• Test runner behavior and mocks.
• Container image, signals, health checks, and environment variables.

Output

Return:

• Runtime compatibility notes.
• Implementation summary.
• Test/build commands.
• Deployment constraints.