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 instructions/pdone/jset/agents-mdgit clone --depth 1 https://github.com/pdone/jsetWhat 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 | $0.01912 | $0.01912 |
| Opus 5 | $0.00956 | $0.00956 |
| Sonnet 5 | $0.00382 | $0.00382 |
| Haiku 4.5 | $0.00191 | $0.00191 |
Grade A, and why
jset AGENTS.md 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 237 lines — stays where its author put it; the contents beside it link to each section on GitHub.
jset - Tampermonkey Userscripts
本项目包含用于 Tampermonkey 的浏览器用户脚本集合，用于定制和增强网页功能。
维护者信息
📁 项目结构
jset/
├── 📄 AGENTS.md # 编码规范和项目指南
├── 📄 README.md # 项目说明
└── 📂 src/ # 用户脚本源代码
└── *.user.js # 用户脚本文件
构建和测试
本项目为纯 JavaScript 用户脚本，无需构建步骤。
- 无 package.json - 不使用 npm/yarn 依赖管理
- 无构建命令 - 脚本直接复制到 Tampermonkey 中使用
- 无测试框架 - 手动测试脚本功能
- 安装方式: 复制
.user.js文件内容到 Tampermonkey 编辑器，或使用 "Install from URL"
文件命名规范
- 脚本文件必须以
.user.js结尾 - 使用 kebab-case 命名:
site-feature.user.js - 示例:
github-dark-mode.user.js,bilibili-auto-like.user.js
代码风格指南
1. 元数据块 (Metadata Block) - 必需
每个脚本必须以标准元数据块开头：
// ==UserScript==
// @name 脚本中文名称
// @name:en Script English Name
// @namespace http://tampermonkey.net/
// @version 1.0.0
// @description 脚本功能描述
// @description:en Script description
// @author 作者名
// @match https://example.com/*
// @grant GM_addStyle
// @grant GM_setValue
// @grant GM_getValue
// @run-at document-end
// @license MIT
// ==/UserScript==
必需字段：
@name- 脚本名称（支持多语言:zh-CN,:en）@namespace- 命名空间（通常用 URL 或唯一标识）@version- 版本号（语义化版本，如 1.0.0）@match- 匹配的 URL 模式（推荐用@match替代@include）@description- 脚本描述（支持多语言）
常用可选字段：
@author- 作者名称@grant- 声明使用的 GM API（见下方说明）@run-at- 执行时机：document-start,document-end(默认),document-idle@require- 引入外部库 URL@resource- 引入静态资源@icon- 脚本图标 URL@license- 许可证
2. GM API 使用规范
必须显式声明 @grant：
// @grant GM_addStyle // 添加 CSS 样式
// @grant GM_setValue // 存储数据
// @grant GM_getValue // 读取数据
// @grant GM_deleteValue // 删除数据
// @grant GM_xmlhttpRequest // 跨域请求
// @grant GM_openInTab // 打开新标签页
// @grant GM_notification // 显示通知
// @grant GM_registerMenuCommand // 注册菜单命令
// @grant unsafeWindow // 访问页面 window 对象
// @grant none // 不使用沙箱（直接使用页面环境）
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.
- yesterday First seen · 237 lines · 1,912 tokens per session scan A c52d37e32595
jset AGENTS.md is an instructions file published in the GitHub repository pdone/jset (5 stars, last pushed 6mo ago), licensed MIT. It adds 1,912 tokens to every session, about $0.0096 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 2026-08-31.
Other instructions, from other repositories
Browser4 CLAUDE.md
Instructions for platonai/Browser4, covering browser4 — project context for claude, architecture, key dispatch chain (cli → browser), batch commands and e2e test structure.
spring-ai-agentcore AGENTS.md
Instructions for spring-ai-community/spring-ai-agentcore, covering agents.md, project overview, architecture, key components and artifact store classes.
flyto-core CLAUDE.md
Instructions for flytohub/flyto-core, covering claude notes, cross-agent handoff and shared code intelligence.
metamask-extension AGENTS.md
AGENTS.md instructions for MetaMask/metamask-extension, covering agents.md, agent instructions summary, critical rules for agents, comprehensive guidelines location and quick setup.
deckforge AGENTS.md
Instructions for tph-kds/deckforge, covering deckforge agent entry point, code intelligence, read order, default routing and non-negotiable implementation rules.
fast-browser CLAUDE.md
Claude Code instructions for m4ttstack/fast-browser, covering fast browser plugin, where a change belongs, fork branch: use fast-browser-runtime, releasing a new runtime and re-pinning this repo: use the script.