bun: Command for Claude Code

.claude/commands/upgrade-nodejs.md

upgrade-nodejs is a command for Claude Code from oven-sh/bun. It costs 0 tokens per session (913 once invoked), scanned A, original, no licence file.

A guide for changing the Node.js version that Bun reports for compatibility with Node.js packages and native add-ons. Bun is a JavaScript runtime that can run many Node.js packages.

In plain words
What is it for?
Use it when upgrading or adjusting the Node.js compatibility version reported by Bun.
Why use it?
It helps when a package checks the reported Node.js version and refuses to install or run with Bun's default value.

Command for Claude Code

Written for Claude Code: installed under .claude/.

This is oven-sh/bun's own configuration. It tells Claude Code how to work on bun itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything bun configures →

Reuse

Borrowing it

Nothing to install: this file belongs to oven-sh/bun. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/oven-sh/bun/main/.claude/commands/upgrade-nodejs.md
Clone the repo
git clone --depth 1 https://github.com/oven-sh/bun

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for upgrade-nodejs

README.md
[![agentmods](https://agentmods.dev/badge/commands/oven-sh/bun/upgrade-nodejs/github.svg)](https://agentmods.dev/commands/oven-sh/bun/upgrade-nodejs)
Your own site
<a href="https://agentmods.dev/commands/oven-sh/bun/upgrade-nodejs"><img src="https://agentmods.dev/badge/commands/oven-sh/bun/upgrade-nodejs/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for upgrade-nodejs

Your own site · 80×15
<a href="https://agentmods.dev/commands/oven-sh/bun/upgrade-nodejs"><img src="https://agentmods.dev/badge/commands/oven-sh/bun/upgrade-nodejs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 913 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00000 $0.00913
Opus 5.5 $0.00000 $0.00365
Sonnet 5.5 $0.00000 $0.00183
Haiku 4.5 $0.00000 $0.00091

Measured 1mo ago against content hash c2cb6e219d6e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

upgrade-nodejs scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s https://nodejs.org/dist/index.json | jq '.[0]'
.claude/commands/upgrade-nodejs.md · 99 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago Changed · +7 lines c2cb6e219d6e
  2. 2mo ago First seen · 92 lines · 0 tokens per session scan A c8d5be8e4a38

Subscribe to this mod's changes

upgrade-nodejs is a command published in the GitHub repository oven-sh/bun (96,454 stars, last pushed today), with no licence file. It costs nothing until one of its globs matches a file; then it loads 913 tokens. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.