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Bun runtime guide

Helps the agent write, run, test and migrate JavaScript/TypeScript projects using Bun instead of Node.

Source Download skill
Repository
affaan-m/ECC
Stars
295,127
Licence
MIT
Files
1 file

What it does

This skill gives the agent a reference for Bun, a fast all-in-one JavaScript and TypeScript toolkit that bundles a runtime, package manager, bundler and test runner. Once installed, the agent can advise when Bun or Node is the better choice, suggest commands such as bun install, bun run and bun test, and help move a Node project to Bun, including Vercel deployment settings. It also points to built-in Bun APIs before adding extra dependencies. The skill is text guidance only and does not itself run any code.

Great for

  • Developers starting a new JavaScript or TypeScript project who want one toolchain
  • Teams migrating an existing Node.js project to Bun and checking compatibility
  • Engineers configuring Bun on Vercel or setting up CI test options

Skip it if

  • Projects that depend on native Node addons or obscure Node internals, which may not work under Bun without testing
  • Security-sensitive dependency decisions: the skill's audit and fix guidance is advisory, and bun audit fix changes lockfiles and installed packages, so it should be reviewed rather than run blindly

Try asking

  • “Should I use Bun or Node for this new TypeScript API project?”
  • “Help me migrate this npm-based project to Bun and update the scripts.”
  • “Set up bun test with parallel execution and sharding in our CI pipeline.”
  • “Configure Bun for deployment on Vercel with a frozen lockfile install.”
Step-by-step guide: how to use Bun runtime guideInstall, first run, examples, tips and FAQs

Install in 3 steps

  1. 1

    Download the skill

    The ZIP contains the 1 original files, the MIT licence and an attribution note.

    bun-runtime.zip
  2. 2

    Add it to your agent

    Claude Code (all projects)

    mkdir -p ~/.claude/skills && unzip bun-runtime.zip -d ~/.claude/skills/

    Claude Code / Agent SDK (this project only)

    mkdir -p .claude/skills && unzip bun-runtime.zip -d .claude/skills/

    Claude apps (web/desktop): Settings → Capabilities → Skills → Upload skill, and choose the ZIP.

  3. 3

    Ask for the task

    No special command needed — the agent reads the skill's description and loads it when your request matches. Try one of the prompts above.

Get better results

  • Run bun --version first, because CLI flags can change between Bun releases.
  • Review bun audit fix changes and install lifecycle scripts before accepting them, and check that private package data is only sent to approved registries.
  • Commit bun.lock for reproducible installs and test native-addon dependencies before relying on them in production.

What's inside

  • SKILL.md

Redistributed unmodified from affaan-m/ECC under the MIT licence. The assessment was drafted with AI from the skill's files on 2026-10-29. Skills can instruct your agent to run code — read SKILL.md and any scripts before installing.