Borrowing it
Nothing to install: this file belongs to chenxuyaun/free_web_mcp. 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/chenxuyaun/free_web_mcp/main/AGENTS.mdgit clone --depth 1 https://github.com/chenxuyaun/free_web_mcpWrote 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/chenxuyaun/free_web_mcp/agents-md)<a href="https://agentmods.dev/instructions/chenxuyaun/free_web_mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/chenxuyaun/free_web_mcp/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 | $0.00988 | $0.00988 |
| Opus 5 | $0.00494 | $0.00494 |
| Sonnet 5 | $0.00198 | $0.00198 |
| Haiku 4.5 | $0.00099 | $0.00099 |
Grade A, and why
free_web_mcp 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 5d 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 — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
项目状态
Free Web MCP — Verifiable Web Evidence Network：给 AI Agent 免费网页访问，对网页来源的断言做证据化验证，并把证据指纹 SHA-256 锚定到 BNB Smart Chain Testnet。双栈 pnpm monorepo。
当前进度（v0.3，M4-M8 已完成）：dashboard + evidence engine + SQLite 持久化 + 8 个 MCP 工具 + EvidenceRegistry 合约（Anvil 本地链验证锚定 exists()=true）+ Demo Mode + SSRF/限流。
技术栈
| 层 | 技术 |
|---|---|
| 前端/Dashboard | Next.js 14 / React 18 / Tailwind / better-sqlite3 / lucide |
| 证据引擎 | TypeScript（packages/evidence）+ Vitest |
| 链上 | Solidity 0.8.24 / Foundry / viem（packages/blockchain + contracts/） |
| MCP Server | Python 3.12 / FastMCP / DuckDuckGo（apps/mcp-server，uv 管理） |
| 包管理 | pnpm workspace + uv（Python 侧独立） |
目录
apps/
web/ Next.js dashboard + API 路由（evidence/demo/anchor/health）
mcp-server/ Python MCP server（8 工具，44+ 测试）
packages/
evidence/ claims/engine/hash/package（TS，15 vitest）
blockchain/ viem client for EvidenceRegistry（chains/registry）
contracts/ EvidenceRegistry.sol + forge test（6 测试）
scripts/ seed-demo.ts、demo.ts（pnpm demo）
docs/ ｜examples/ ｜.github/workflows/ci.yml
分层规则（必须遵守）
- MCP 工具层（apps/mcp-server/src/free_web_mcp/mcp/tools.py）绝不直接碰存储或链——
extract_claims/find_counter_evidence是本地纯函数，create_evidence_record/get_evidence走 dashboard API（MCP_SERVER_URL环境变量）。 - Dashboard API 层拥有 SQLite（
apps/web/lib/db.ts）和链上签名器（apps/web/lib/blockchain.ts）。 - 链上写操作必须：服务端 signer（
WALLET_PRIVATE_KEY只从 env 读）+ 请求显式{confirm:true}+ 限流。 - SSRF 防护在
apps/mcp-server/src/free_web_mcp/web/client.py：拒绝 localhost/私网/链路本地地址。 - 私钥永不入代码/日志/前端/MCP 输出。
关键命令
pnpm install # Node 依赖
cd apps/mcp-server && uv sync # Python 依赖
# 三个终端跑起来
cd apps/mcp-server && uv run --no-sync free-web-mcp --transport http --host 127.0.0.1 --port 8765
pnpm dev # dashboard :3000
anvil --port 8545 # 本地链（锚定用）
pnpm demo # CLI 演示（需 8765 + dashboard 在跑）
cd contracts && forge test # 合约测试
pnpm -r test && pnpm -r typecheck # Node 测试/类型
cd apps/mcp-server && uv run pytest -q # Python 测试
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.
- 5d ago First seen · 68 lines · 988 tokens per session scan A 546eb004358e
free_web_mcp AGENTS.md is an instructions file published in the GitHub repository chenxuyaun/free_web_mcp (0 stars, last pushed 7d ago), licensed MIT. It adds 988 tokens to every session, about $0.0049 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
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.
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).
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).
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.
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.