Bun Development
GabrielMartinMoran/mind
Modern JavaScript/TypeScript development with Bun runtime. An agent skill from GabrielMartinMoran/mind.
Build fast applications with Bun JavaScript runtime. An agent skill from hoodini/ai-agents-skills.
No licenceAuto-check: notes
Install Bun
$ npx skills add hoodini/ai-agents-skills --skill bun -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install hoodini/ai-agents-skills bun --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/hoodini/ai-agents-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/bun .claude/skills/bun && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "bun" agent skill from https://github.com/hoodini/ai-agents-skills/tree/master/skills/bun into .claude/skills/bun/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bun", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/hoodini/ai-agents-skills/tree/master/skills/bunType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add hoodini/ai-agents-skills --skill bun -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install hoodini/ai-agents-skills bun --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hoodini/ai-agents-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/bun .agents/skills/bun && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "bun" agent skill from https://github.com/hoodini/ai-agents-skills/tree/master/skills/bun into .agents/skills/bun/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bun", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add hoodini/ai-agents-skills --skill bun -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install hoodini/ai-agents-skills bun --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hoodini/ai-agents-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/bun .cursor/skills/bun && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "bun" agent skill from https://github.com/hoodini/ai-agents-skills/tree/master/skills/bun into .cursor/skills/bun/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bun", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/hoodini/ai-agents-skills.git --path skills/bun--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add hoodini/ai-agents-skills --skill bun -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install hoodini/ai-agents-skills bun --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hoodini/ai-agents-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/bun .gemini/skills/bun && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "bun" agent skill from https://github.com/hoodini/ai-agents-skills/tree/master/skills/bun into .gemini/skills/bun/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bun", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install hoodini/ai-agents-skills bunInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add hoodini/ai-agents-skills --skill bun -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/hoodini/ai-agents-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/bun .github/skills/bun && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "bun" agent skill from https://github.com/hoodini/ai-agents-skills/tree/master/skills/bun into .github/skills/bun/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bun", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add hoodini/ai-agents-skills --skill bun -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install hoodini/ai-agents-skills bun --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hoodini/ai-agents-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/bun .opencode/skills/bun && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "bun" agent skill from https://github.com/hoodini/ai-agents-skills/tree/master/skills/bun into .opencode/skills/bun/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bun", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
bun- GitHub stars
- 281
- Token cost
- ~2.8k tokens
- SKILL.md length
- 108 words
- Files
- 1
- Skills in repo
- 30
- Repo updated
- First seen
- Licence
- None found
At a glance
Build fast applications with Bun JavaScript runtime. An agent skill from hoodini/ai-agents-skills.
- Creating Bun projects
- SKILL.md covers Quick Start, Package Management, Bun Runtime and Bun APIs, plus 8 more sections
- Calls bun, bunx and curl; reaches bun.sh and registry.npmjs.org; needs API_KEY
- Optimizing Node.js alternatives
What it does
Bun is an agent skill from hoodini/ai-agents-skills. Build fast applications with Bun JavaScript runtime. Use when creating Bun projects, using Bun APIs, bundling, testing, or optimizing Node.js alternatives. Triggers on Bun, Bun runtime, bun.sh, bunx, Bun serve, Bun test, JavaScript runtime.
Its SKILL.md is about 2.8k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It works with Bun, JavaScript and Node.js. The repository describes itself as: 🧠 AI Agent Skills Repository - A curated collection of specialized skills for AI coding agents (Claude Code, GitHub Copilot, Cursor, Windsurf). Created by Yuval Avidani using…
When your agent uses it
- Creating Bun projects
- Optimizing Node.js alternatives
- JavaScript runtime
Example prompts
- “/bun”
Requirements
- Node.js
- A credential in API_KEY
What it can do on your machine
Read from SKILL.md and the folder at commit f7a43d8. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
bunbunxcurlbash
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
bun.shregistry.npmjs.org
Also links to:
github.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
API_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Bun loads about 2.8k tokens when it runs. Until then it costs about 61 tokens; SKILL.md has 108 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NotePipes a well-known installer script into a shellSKILL.md:14
curl -fsSL https://bun.sh/install | bash - NotePipes a well-known installer script into a shellSKILL.md:17
powershell -c "irm bun.sh/install.ps1 | iex" - NoteMentions a .env fileSKILL.md:434
// .env file support (built-in, no dotenv needed!) - NoteMentions a .env fileSKILL.md:435
// .env - NoteMentions a .env fileSKILL.md:491
└── .env
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 108 words (~2,804 tokens).
“Build and run JavaScript/TypeScript applications with Bun's all-in-one toolkit.”
- name
- bun
Files
Just SKILL.md in skills/bun of hoodini/ai-agents-skills.
Open the folder on GitHubat commit f7a43d8
Compare with similar skills
Bun next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Bun this skillhoodini/ai-agents-skills | 281 | — | ~2.8k | Automated safety check: Notes | None | |
| Bun DevelopmentGabrielMartinMoran/mind | 148 | 12 repos | ~3.5k | Automated safety check: Notes | MIT | |
| Bungalfrevn/apollo | 237 | — | ~2k | Automated safety check: Notes | MIT | |
| Bunbastani-inc/atomic | 846 | — | ~2.8k | Automated safety check: Pass | Custom licence | |
| Bun Runtime and Toolkitmweinbach/agent-coworker | 156 | — | ~2.2k | Automated safety check: Notes | Custom licence | |
| Chrome CDP Browser Controlzenstory-ai/oh-story-claudecode | 7.4k | 3 repos | ~1.2k | Automated safety check: Pass | MIT |
Similar skills
Bun
galfrevn/apollo
A skill your agent uses when building, running, testing, or bundling JavaScript/TypeScript applications.
Bun
bastani-inc/atomic
A skill your agent uses when building, testing, and deploying JavaScript/TypeScript applications.
Bun Runtime and Toolkit
mweinbach/agent-coworker
Quick reference for using Bun to run TypeScript and JavaScript, install packages, bundle code, run tests and serve HTTP, with the key files and commands.
Chrome CDP Browser Control
zenstory-ai/oh-story-claudecode
Drives a Chrome window over the DevTools Protocol with the agent-browser CLI, so the agent can reuse your logged-in sessions, read pages and pull tokens.
Generate Release Notes
teambit/bit
Generate comprehensive release notes for Bit from git commits and pull requests.
More from hoodini/ai-agents-skills
All 30 skills in this repoParallax Scroll-Scrub Landing Page
hoodini/ai-agents-skills
Turns a short video into a one-screen landing page where scrolling scrubs through the extracted frames while five text scenes crossfade over the footage.
Yuv Viral Video
hoodini/ai-agents-skills
Edit any selfie or screen-share footage into a viral short-form video in YUV.AI's signature style — Apple-style liquid-glass cards (real CSS backdrop-filter), dark-mode polish, MrBeast-paced cuts…
Meta Ads
hoodini/ai-agents-skills
Pull, analyze, manage, and CREATE Meta ads (Facebook, Instagram, Messenger, Threads, Click-to-WhatsApp) via the Marketing API.
YUV Video Director
hoodini/ai-agents-skills
Turns an idea or script into a branded MP4 by routing each scene to HyperFrames, Lottie, Manim or GSAP, wrapping it in one brand frame file, then checking and rendering.
Video To Landing Page
hoodini/ai-agents-skills
Turn any video into a cinematic scroll-driven landing page — Apple-style hero where scrolling progresses the visible frame through the video.
Mermaid Diagrams
hoodini/ai-agents-skills
Create diagrams and visualizations using Mermaid syntax. An agent skill from hoodini/ai-agents-skills.
Related
Works with
Questions about Bun
What does Bun do?
Build fast applications with Bun JavaScript runtime. An agent skill from hoodini/ai-agents-skills. Bun is an agent skill from hoodini/ai-agents-skills. Build fast applications with Bun JavaScript runtime.
When should I use Bun?
Bun fits situations like: creating Bun projects; optimizing Node.js alternatives; javaScript runtime.
How do I install Bun in Claude Code?
Run `npx skills add hoodini/ai-agents-skills --skill bun -a claude-code`. Or copy the skill folder (skills/bun in hoodini/ai-agents-skills) into .claude/skills/bun in your project. Claude Code loads it when a task matches its description.
How do I install Bun in Codex?
Run `npx skills add hoodini/ai-agents-skills --skill bun -a codex`. Or copy the skill folder (skills/bun in hoodini/ai-agents-skills) into .agents/skills/bun in your project. Codex loads it when a task matches its description.
Can I use Bun in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add hoodini/ai-agents-skills --skill bun -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/bun, .gemini/skills/bun, .github/skills/bun and .opencode/skills/bun in your project.
What does Bun need to run?
Going by SKILL.md and its folder, Bun needs the command-line tools its instructions call (bun, bunx, curl and bash) and credentials named API_KEY. Our summary lists: Node.js; A credential in API_KEY.
Does Bun access the network?
SKILL.md names 3 domains. In commands or code: bun.sh and registry.npmjs.org; the agent is likely to contact these when it follows the instructions. As links in the text: github.com. This is read from the text; nothing was executed.
Is Bun safe to install?
Our automated static check of SKILL.md found notes only (pipes a well-known installer script into a shell; mentions a .env file), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does Bun use?
No licence was found for Bun or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Bun use?
About 2.8k tokens (SKILL.md is roughly 11k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Bun?
Skills that share tags, products or a category with Bun: Bun Development (GabrielMartinMoran/mind, 148 stars), Bun (galfrevn/apollo, 237 stars), Bun (bastani-inc/atomic, 846 stars) and Bun Runtime and Toolkit (mweinbach/agent-coworker, 156 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Bun?
hoodini (a GitHub user) maintains it in hoodini/ai-agents-skills, which has 281 GitHub stars. The repository holds 30 skills in this directory. The repository was last updated on July 11, 2026.
Source: hoodini/ai-agents-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.