bun-runtime

bun-runtime is a skill for Claude Code, Codex from bcefghj/forks-collection. It costs 34 tokens per session (663 once invoked), scanned A, original, no licence file.

A skill about Bun, a JavaScript runtime that can also install packages, bundle code, and run tests. It covers choosing Bun or Node, moving projects between them, and using Bun with Vercel.

In plain words
What is it for?
Using Bun as a runtime, package manager, bundler, or test runner, and handling migration or Vercel deployment questions.
Why use it?
It helps developers decide whether Bun fits a project and understand the changes involved in adopting it.

Skill for Claude CodeCodex

Written for Claude Code and Codex: shipped in a Claude Code plugin, but also agents/openai.yaml present. Also seen: installed under .agents/ (shared by several agents).

Part of the everything-claude-code plugin — 50 skills, 64 commands, 30 agents, 6 MCP servers shipped together

Good fit Using Bun as a runtime, package manager, bundler, or test runner, and handling migration or Vercel deployment questions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/bcefghj/forks-collection/bun-runtime
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/bcefghj/forks-collection/bun-runtime
Any agent
npx skills add bcefghj/forks-collection --skill bun-runtime
Clone the repo
git clone --depth 1 https://github.com/bcefghj/forks-collection

Made for: Claude Code, Codex.

Or install everything-claude-code, the plugin that ships this one along with the rest of its 50 skills, 64 commands, 30 agents, 6 MCP servers.

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 bun-runtime

README.md
[![agentmods](https://agentmods.dev/badge/skills/bcefghj/forks-collection/bun-runtime.svg)](https://agentmods.dev/skills/bcefghj/forks-collection/bun-runtime)
Your own site
<a href="https://agentmods.dev/skills/bcefghj/forks-collection/bun-runtime"><img src="https://agentmods.dev/badge/skills/bcefghj/forks-collection/bun-runtime.svg" alt="Measured on agentmods" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 663 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
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 $0.00034 $0.00663
Opus 5 $0.00017 $0.00331
Sonnet 5 $0.00007 $0.00133
Haiku 4.5 $0.00003 $0.00066

Measured 6d ago against content hash 2929d1f22796, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

bun-runtime 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 6d 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.

fetch(req) {
claude-code-forks/everything-claude-code/.agents/skills/bun-runtime/SKILL.md · 85 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 6d ago First seen · 85 lines · 34 tokens per session scan A 2929d1f22796

Subscribe to this mod's changes

bun-runtime is a skill published in the GitHub repository bcefghj/forks-collection (5 stars, last pushed 5mo ago), with no licence file. It adds 34 tokens to every session and 663 once invoked, about $0.0002 per session on Opus 5. 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 2026-08-31.

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