Borrowing it
Nothing to install: this file belongs to jiangkoumo/toolfence. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/jiangkoumo/toolfence/main/AGENTS.mdgit clone --depth 1 https://github.com/jiangkoumo/toolfenceWrote 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.
[](https://agentmods.dev/instructions/jiangkoumo/toolfence/agents-md)<a href="https://agentmods.dev/instructions/jiangkoumo/toolfence/agents-md"><img src="https://agentmods.dev/badge/instructions/jiangkoumo/toolfence/agents-md.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00417 | $0.00417 |
| Opus 5 | $0.00209 | $0.00209 |
| Sonnet 5 | $0.00083 | $0.00083 |
| Haiku 4.5 | $0.00042 | $0.00042 |
Grade A, and why
toolfence 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.
What it actually says
ToolFence 项目约束
安全代理项目，改动必须小而明确，且要有拒绝路径（denial-path）测试。
提交前必跑
npm run verify # typecheck + 覆盖阈值测试 + build + demo + 打包冒烟 + pack dry-run
npm audit --omit=dev # 生产依赖审计
发布前再加 npm run release:check。
安全与信任边界
- 测试要覆盖受影响路径中的：成功、拒绝、畸形输入、取消、超时、断开。
- 改 proxy/CLI 时，stdout 只保留 MCP JSON-RPC，不打印调试信息。
- 不记录原始工具参数、命令参数、审批 token、原始上游结果（审计只记 hash / operation / resources）。
- fail-closed 是核心不变式：deny / timeout / 取消 一律「未转发」，不留可事后授权的幽灵审批。
- 漏洞走 SECURITY.md 私报，不开公开 issue。
发布与版本
- 只通过 GitHub Actions
publish.yml可信发布，不加 npm 长令牌。 - 保留
contentPolicy: "dual-use"和根目录DISCLOSURE（npm 声明为永久）。 - 发布失败不要复用或移动 tag：修好后升版本号再发。
跨仓库联合开发（AgentTape）
docs/AGENTTAPE_TOOLFENCE_ALIGNMENT.md必须与 AgentTape 仓库（~/Documents/ChatGPT/#）的同名文件字节一致，改动要两边镜像。- 每轮只改一个「主开发项目」，另一个固定在已记录的 commit/version 作为伴随观察器。
- 改行为或发布保证时，同步更新 README、TESTING、CHANGELOG。
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 · 33 lines · 417 tokens per session scan A e2fb71be7d6d
toolfence AGENTS.md is an instructions file published in the GitHub repository jiangkoumo/toolfence (100 stars, last pushed 2d ago), licensed MIT. It adds 417 tokens to every session, about $0.0021 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 2026-09-06.
Other instructions, from other repositories
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.