bun-test

bun-test is a skill for Claude Code, Codex from LuigiColantuono/bun-docs-toolkit. It costs 40 tokens per session (31,928 once invoked), scanned A, original, no licence file.

A guide to Bun's built-in test runner. Bun is a JavaScript runtime, and its test runner checks whether code behaves as expected.

In plain words
What is it for?
Use it to create or maintain Bun tests, including checks for browser-like interfaces, test doubles, lifecycle steps, snapshots, and coverage reports.
Why use it?
It explains how to write and configure tests, inspect results, and use testing tools such as mocks, snapshots, and coverage.

Skill for Claude CodeCodex

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/luigicolantuono/bun-docs-toolkit/test
Any agent
npx skills add LuigiColantuono/bun-docs-toolkit --skill test
Clone the repo
git clone --depth 1 https://github.com/LuigiColantuono/bun-docs-toolkit

Made for: Claude Code, Codex.

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-test

README.md
[![agentmods](https://agentmods.dev/badge/skills/luigicolantuono/bun-docs-toolkit/test.svg)](https://agentmods.dev/skills/luigicolantuono/bun-docs-toolkit/test)
Your own site
<a href="https://agentmods.dev/skills/luigicolantuono/bun-docs-toolkit/test"><img src="https://agentmods.dev/badge/skills/luigicolantuono/bun-docs-toolkit/test.svg" alt="Measured on agentmods" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 31,928 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 $0.00040 $0.31928
Opus 5 $0.00020 $0.15964
Sonnet 5 $0.00008 $0.06386
Haiku 4.5 $0.00004 $0.03193

Measured 4d ago against content hash 5cdb886e8e8e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

bun-test 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 4d 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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

When a test times out, Bun kills any still-running processes that the test spawned with `Bun.spawn`, `Bun.spawnSync`, or `node:child_process`, and logs a message to the console. This prevents zombie processes from linger
skills/test/SKILL.md · 4,532 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. 4d ago First seen · 4,532 lines · 40 tokens per session scan A 5cdb886e8e8e

Subscribe to this mod's changes

bun-test is a skill published in the GitHub repository LuigiColantuono/bun-docs-toolkit (0 stars, last pushed 5d ago), with no licence file. It adds 40 tokens to every session and 31,928 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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