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.
npx agentmods add skills/oven-sh/bun/slowest-testsnpx skills add oven-sh/bun --skill slowest-testsgit clone --depth 1 https://github.com/oven-sh/bunWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00061 | $0.00948 |
| Opus 5 | $0.00030 | $0.00474 |
| Sonnet 5 | $0.00012 | $0.00190 |
| Haiku 4.5 | $0.00006 | $0.00095 |
Grade A, and why
slowest-tests scanned grade A with 0 findings 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 2d 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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
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.
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.
- 2d ago First seen · 51 lines · 61 tokens per session scan A 64faac05cc20
slowest-tests is a skill published in the GitHub repository oven-sh/bun (95,832 stars, last pushed today), with no licence file. It adds 61 tokens to every session and 948 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
bun-docs
Bun 1.2 — runtime, package manager, HTTP server, SQLite, test runner, bundler, TypeScript, FFI, shell API.
mcpp-style-ref
为 mcpp 项目应用 Modern/Module C++ (C++23) 编码风格。适用于编写或审查带模块的 C++ 代码、命名标识符、组织 .cppm/.cpp 文件，或用户提及 mcpp、module C++、现代 C++ 风格时。.
mbun-runtime-debugging
调试 mbun 运行时测试失败/崩溃时用。提供仓库实测可用的定位配方——选二进制、单文件跑测、gdb 抓 backtrace、按 API 定位源码、常见坑排查清单、何时跳过。凡处理 bun 测试跑不过/段错误/hang/断言失败，先读本 skill 再动手，避免每个 task 重复摸索拖慢。.
dev-process
在本仓开发任何改动前用。规定 issue 先行的开发流程,按 bugfix / 优化 / 新功能分流;新功能须经 issue 充分讨论并在 .agents/docs 落地设计方案;衔接 tdd-workflow 与本体验证 / 测试 / CI / PR 规范。开发前先读本 skill。.
issue-reporting
向本仓提交 issue / 发起讨论时用。规定一份好问题反馈的 SOP——软件/版本、报错信息、初步分析、相关资料,并去除本地隐私(用户名/token 等替换)。凡要创建 issue、反馈 bug、发起讨论,先读本 skill 再动手。.
tdd-workflow
在 mbun 项目中开发任何功能或修复缺陷时使用。规定以 bun/node 原生测试集为验收标准的 TDD 开发循环、checkpoint 提交约定与记录流程。.