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/chicogong/html-tools/claude-mdgit clone --depth 1 https://github.com/chicogong/html-toolsWhat 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 | $0.01118 | $0.01118 |
| Opus 5 | $0.00559 | $0.00559 |
| Sonnet 5 | $0.00224 | $0.00224 |
| Haiku 4.5 | $0.00112 | $0.00112 |
Grade A, and why
html-tools CLAUDE.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 3d 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.
How it starts
The opening of the file, as written. The whole thing — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
本文件说明 WebUtils 仓库的工程约定。事实以当前 package.json、tools.json 和 CI 工作流为准。
项目概述
WebUtils 是静态优先的浏览器工具集。每个工具以独立 HTML 页面交付,源码共享 tool-base.css 和 tool-chrome.js,发布时通过构建脚本生成 dist/。
多数格式化、计算和生成任务在浏览器本地处理;网络客户端、公共 API、CDN、字体和图片等功能会连接页面标明或用户选择的第三方。不要对全部工具统一承诺“完全离线”或“绝不联网”。
开发命令
npm ci # 按锁文件安装依赖
npm run dev # 本地开发服务器
npm run build # 同步数据并生成 dist/
npm test # 结构、数据、同步、工具页、重定向和共享能力测试
npm run lint # HTMLHint + Stylelint + ESLint
npm run format:check # Prettier 只读检查
npm run format # Prettier 写入格式化
npm run sync:tools # 同步 tools.json 到生成内容
npm run check:version # 校验版本元数据
提交前至少运行:
npm run build
npm test
npm run lint
npm run format:check
git status --short
数据与生成边界
tools.json 是工具目录的单一事实源。tools 是以连续数字字符串为 key 的对象,不是数组。
npm run sync:tools 会更新:
index.html内联的分类、工具、计数和 SEO 信息;README.md、sitemap.xml、manifest.json、llms.txt;i18n/*.json的工具数;tools/<分类>/index.html分类落地页。
修改 tools.json 后必须同步并检查生成差异。不要手工修改会被同步脚本覆盖的数据区块。
首页架构
index.html:语义结构、产品文案和内联工具数据;assets/css/main.css:首页 token、布局和组件;assets/js/main.js:搜索、分类、收藏、URL 状态和卡片渲染;assets/js/recent-tools.js:最近使用过滤;assets/js/tool-chrome.js:主题初始化、最近访问记录、工具页外壳和 Service Worker。
首页控制器依赖 .tool-card 的 data-category、data-keywords 等属性。调整卡片结构或选择器前,必须同时检查搜索、分类、收藏与最近使用逻辑。
工具页与共享设计层
所有存量工具共享:
assets/css/tool-base.css:设计 token、兼容变量、基础组件、焦点/动效规则;assets/js/tool-chrome.js:返回首页、主题切换、最近访问和 fallback 样式。
工具内联 CSS 只实现任务特有布局。新增颜色、间距或通用控件前,先判断是否应进入共享层。视觉与无障碍标准见 docs/design-system.md。
新工具推荐以 tools/calculator/tip-calculator.html 为结构参考,并确保:
- 一个非空
<h1>和一个<main>; - 标签、键盘操作、可见焦点和移动触控目标完整;
- 隐私、联网和离线能力描述准确;
- 使用共享 token,不复制新的全局主题;
- 不使用
transition: all,支持prefers-reduced-motion。
添加工具
- 在
tools/<category>/创建 HTML 文件。 - 在
tools.json.tools中使用下一个连续数字 key 注册完整元数据。 - 运行
npm run sync:tools。 - 运行完整本地门禁并检查生成差异。
项目已有 1000+ 工具,默认优先修复和打磨高价值工具,不以继续增加数量为目标。
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.
- 3d ago First seen · 97 lines · 1,118 tokens per session scan A d2b187aee255
html-tools CLAUDE.md is an instructions file published in the GitHub repository chicogong/html-tools (138 stars, last pushed 4d ago), licensed MIT. It adds 1,118 tokens to every session, about $0.0056 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 instructions, from other repositories
htmldeck CLAUDE.md
Claude Code instructions for uchimata2/htmldeck, covering htmldeck — working conventions, what loads every turn, and what bounds it, what this is, the rules that must survive and voice.
electron CLAUDE.md
Instructions for electron/electron, covering electron development guide, running nodemodules binaries, project overview, directory structure and build tools setup.
hyperframes AGENTS.md
AGENTS.md instructions for heygen-com/hyperframes, covering hyperframes, skills, build & test, linting & formatting and composition validation.
gentelella copilot-instructions.md
Instructions for ColorlibHQ/gentelella, covering github copilot instructions — gentelella v4, hard rules, file layout, anti-patterns and commands.
Windows-MCP CLAUDE.md
Claude Code instructions for CursorTouch/Windows-MCP, covering claude.md, project overview, build & development commands, architecture and code style.
jupyter-mcp-server copilot-instructions.md
Instructions for datalayer/jupyter-mcp-server, covering jupyter mcp server, working effectively, environment setup, build and install (critical: network limitations) and standard installation (may fail with network issues).