File contents Globals
Use Bun's global objects
Bun implements the following globals.
1 --- 2 name: bun-globals 3 description: Use Bun's global objects 4 --- 5 6 # Globals 7 8 > Use Bun's global objects 9 10 Bun implements the following globals. 11 12 | Global | Source | Notes | 13 | ----------------------------------------------------------------------------------------------------------------------- | -------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | 14 | [`AbortController`](https://developer.mozilla.org/en-US/docs/Web/API/AbortController) | Web | | 15 | [`AbortSignal`](https://developer.mozilla.org/en-US/docs/Web/API/AbortSignal) | Web | | 16 | [`alert`](https://developer.mozilla.org/en-US/docs/Web/API/Window/alert) | Web | Intended for command-line tools | 17 | [`Blob`](https://developer.mozilla.org/en-US/docs/Web/API/Blob) | Web | | 18 | [`Buffer`](https://nodejs.org/api/buffer.html#class-buffer) | Node.js | See [Node.js > `Buffer`](/runtime/nodejs-compat#node-buffer) | 19 | `Bun` | Bun | Subject to change as additional APIs are added | 20 | [`ByteLengthQueuingStrategy`](https://developer.mozilla.org/en-US/docs/Web/API/ByteLengthQueuingStrategy) | Web | | 21 | [`confirm`](https://developer.mozilla.org/en-US/docs/Web/API/Window/confirm) | Web | Intended for command-line tools | 22 | [`__dirname`](https://nodejs.org/api/globals.html#__dirname) | Node.js | | 23 | [`__filename`](https://nodejs.org/api/globals.html#__filename) | Node.js | | 24 | [`atob()`](https://developer.mozilla.org/en-US/docs/Web/API/atob) | Web | | 25 | [`btoa()`](https://developer.mozilla.org/en-US/docs/Web/API/btoa) | Web | | 26 | `BuildMessage` | Bun | | 27 | [`clearImmediate()`](https://developer.mozilla.org/en-US/docs/Web/API/Window/clearImmediate) | Web | | 28 | [`clearInterval()`](https://developer.mozilla.org/en-US/docs/Web/API/Window/clearInterval) | Web | | 29 | [`clearTimeout()`](https://developer.mozilla.org/en-US/docs/Web/API/Window/clearTimeout) | Web | | 30 | [`console`](https://developer.mozilla.org/en-US/docs/Web/API/console) | Web | | 31 | [`CountQueuingStrategy`](https://developer.mozilla.org/en-US/docs/Web/API/CountQueuingStrategy) | Web | | 32 | [`Crypto`](https://developer.mozilla.org/en-US/docs/Web/API/Crypto) | Web | | 33 | [`crypto`](https://developer.mozilla.org/en-US/docs/Web/API/crypto) | Web | | 34 | [`CryptoKey`](https://developer.mozilla.org/en-US/docs/Web/API/CryptoKey) | Web | | 35 | [`CustomEvent`](https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent) | Web | | 36 | [`Event`](https://developer.mozilla.org/en-US/docs/Web/API/Event) | Web | Also [`ErrorEvent`](https://developer.mozilla.org/en-US/docs/Web/API/ErrorEvent) [`CloseEvent`](https://developer.mozilla.org/en-US/docs/Web/API/CloseEvent) [`MessageEvent`](https://developer.mozilla.org/en-US/docs/Web/API/MessageEvent). | 37 | [`EventTarget`](https://developer.mozilla.org/en-US/docs/Web/API/EventTarget) | Web | | 38 | [`exports`](https://nodejs.org/api/globals.html#exports) | Node.js | | 39 | [`fetch`](https://developer.mozilla.org/en-US/docs/Web/API/fetch) | Web | | 40 | [`FormData`](https://developer.mozilla.org/en-US/docs/Web/API/FormData) | Web | | 41 | [`global`](https://nodejs.org/api/globals.html#global) | Node.js | See [Node.js > `global`](/runtime/nodejs-compat#global). | 42 | [`globalThis`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/globalThis) | Cross-platform | Aliases to `global` | 43 | [`Headers`](https://developer.mozilla.org/en-US/docs/Web/API/Headers) | Web | | 44 | [`HTMLRewriter`](/runtime/html-rewriter) | Cloudflare | | 45 | [`JSON`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON) | Web | | 46 | [`MessageEvent`](https://developer.mozilla.org/en-US/docs/Web/API/MessageEvent) | Web | | 47 | [`module`](https://nodejs.org/api/globals.html#module) | Node.js | | 48 | [`performance`](https://developer.mozilla.org/en-US/docs/Web/API/performance) | Web | | 49 | [`process`](https://nodejs.org/api/process.html) | Node.js | See [Node.js > `process`](/runtime/nodejs-compat#node-process) | 50 | [`prompt`](https://developer.mozilla.org/en-US/docs/Web/API/Window/prompt) | Web | Intended for command-line tools | 51 | [`queueMicrotask()`](https://developer.mozilla.org/en-US/docs/Web/API/queueMicrotask) | Web | | 52 | [`ReadableByteStreamController`](https://developer.mozilla.org/en-US/docs/Web/API/ReadableByteStreamController) | Web | | 53 | [`ReadableStream`](https://developer.mozilla.org/en-US/docs/Web/API/ReadableStream) | Web | | 54 | [`ReadableStreamDefaultController`](https://developer.mozilla.org/en-US/docs/Web/API/ReadableStreamDefaultController) | Web | | 55 | [`ReadableStreamDefaultReader`](https://developer.mozilla.org/en-US/docs/Web/API/ReadableStreamDefaultReader) | Web | | 56 | [`reportError`](https://developer.mozilla.org/en-US/docs/Web/API/reportError) | Web | | 57 | [`require()`](https://nodejs.org/api/globals.html#require) | Node.js | | 58 | `ResolveMessage` | Bun | | 59 | [`Response`](https://developer.mozilla.org/en-US/docs/Web/API/Response) | Web | | 60 | [`Request`](https://developer.mozilla.org/en-US/docs/Web/API/Request) | Web | | 61 | [`setImmediate()`](https://developer.mozilla.org/en-US/docs/Web/API/Window/setImmediate) | Web | | 62 | [`setInterval()`](https://developer.mozilla.org/en-US/docs/Web/API/Window/setInterval) | Web | | 63 | [`setTimeout()`](https://developer.mozilla.org/en-US/docs/Web/API/Window/setTimeout) | Web | | 64 | [`ShadowRealm`](https://github.com/tc39/proposal-shadowrealm) | Web | Stage 3 proposal | 65 | [`SubtleCrypto`](https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto) | Web | | 66 | [`DOMException`](https://developer.mozilla.org/en-US/docs/Web/API/DOMException) | Web | | 67 | [`TextDecoder`](https://developer.mozilla.org/en-US/docs/Web/API/TextDecoder) | Web | | 68 | [`TextEncoder`](https://developer.mozilla.org/en-US/docs/Web/API/TextEncoder) | Web | | 69 | [`TransformStream`](https://developer.mozilla.org/en-US/docs/Web/API/TransformStream) | Web | | 70 | [`TransformStreamDefaultController`](https://developer.mozilla.org/en-US/docs/Web/API/TransformStreamDefaultController) | Web | | 71 | [`URL`](https://developer.mozilla.org/en-US/docs/Web/API/URL) | Web | | 72 | [`URLSearchParams`](https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams) | Web | | 73 | [`WebAssembly`](https://nodejs.org/api/globals.html#webassembly) | Web | | 74 | [`WritableStream`](https://developer.mozilla.org/en-US/docs/Web/API/WritableStream) | Web | | 75 | [`WritableStreamDefaultController`](https://developer.mozilla.org/en-US/docs/Web/API/WritableStreamDefaultController) | Web | | 76 | [`WritableStreamDefaultWriter`](https://developer.mozilla.org/en-US/docs/Web/API/WritableStreamDefaultWriter) | Web | |
jarle/bun-skills/tree/main/skills/bun-runtime-globals commit 2e189a354b
Frequently asked questions How do I install the Bun Globals skill? Run npx skillmds@latest add jarle/bun-globals in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.
What does the Bun Globals skill do? Use Bun's global objects It is listed under Coding & Dev Tools on SkillMD.
Is Bun Globals safe to use? This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.
Which AI agents work with Bun Globals? This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.
Is Bun Globals free to use? Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.
Who published Bun Globals? jarle (@jarle) published this skill. Their other Agent Skills are listed on their SkillMD profile.