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Bun

Skill G1Joshi/Agent-Skills/skills/frameworks/bun

Bun fast JavaScript runtime and bundler. Use for fast JS development.From its SKILL.md

Install
npx -y skills add G1Joshi/Agent-Skills --skill bun

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

One thing to look at

  • 12 stars12 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.

SKILL.md

1.0 KB, 249 tokens by cl100k_base, as published. Nobody here has run it

Bun

Bun is a drop-in replacement for Node.js, written in Zig. It is fast. v1.1 brings Windows support.

When to Use

  • Speed: bun install is instant. bun run starts instantly.
  • Local Dev: Use it as a package manager even if you use Node.js for production.
  • Testing: bun test is a fast, Jest-compatible test runner.

Core Concepts

Drop-in Replacement

Implements Node APIs (fs, http, path).

Bundle / Transpile

Built-in transpiler for TS/JSX.

Macros

Run code at build time.

Best Practices (2025)

Do:

  • Use bun install: It's compatible with package-lock.json but faster.
  • Use bun test: It's much faster than Jest/Vitest.
  • Use Bun.serve: For max performance HTTP servers.

Don't:

  • Don't use for everything: Some niche Node C++ addons might still have issues.

References

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.

Keep looking

Skills are one crate of 325,949. Ordering is by how many stacks a row turns up in, so the top of any crate is what has actually been picked rather than what has the most stars.