mcp-database-server: Instructions file for Codex

AGENTS.md

mcp-database-server AGENTS.md is an instructions file for Codex, OpenCode from pixel2012/mcp-database-server. It costs 1,821 tokens per session, scanned A, original, MIT.

A project instruction file for an MCP database server, which lets AI clients connect to databases through a standard tool interface. It documents the project, its commands, supported startup methods, and integration examples.

In plain words
What is it for?
Use it when working on the server's TypeScript build, development, watch, cleanup, and example commands, or when configuring it for local use, an MCP gateway, or Claude Desktop.
Why use it?
It gives an AI coding assistant the project-specific information needed to build, run, test, and connect the server without guessing. The instructions also explain how to use SQLite or MySQL configurations.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: positional $N argument.

This is pixel2012/mcp-database-server's own configuration. It tells Codex and OpenCode how to work on mcp-database-server itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything mcp-database-server configures →

Reuse

Borrowing it

Nothing to install: this file belongs to pixel2012/mcp-database-server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/pixel2012/mcp-database-server/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/pixel2012/mcp-database-server

Made for: Codex, OpenCode.

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Per session 1,821 This file is loaded in full into every session.
When invoked 1,821 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01821 $0.01821
Opus 5.5 $0.00728 $0.00728
Sonnet 5.5 $0.00364 $0.00364
Haiku 4.5 $0.00182 $0.00182

Measured 2mo ago against content hash 40de8b9f65e9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mcp-database-server 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 2mo 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.

AGENTS.md · 168 lines

How it starts

The opening of the file, as written. The whole thing — 168 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MCP Database Server — AI 助手指南

项目概述

这是一个基于 Model Context Protocol (MCP) 的数据库服务器,通过 MCP 工具和资源接口让 AI 客户端(如 Claude)与多种数据库交互。

  • npm 包名: @executeautomation/database-server(或发布为 @pixel2012/mcp-database-server)
  • GitHub: https://github.com/pixel2012/mcp-database-server
  • 入口文件: src/index.ts → 编译为 dist/src/index.js
  • MCP SDK: @modelcontextprotocol/sdk v1.9.0
  • 许可: MIT

构建与运行

命令 用途
npm run build 编译 TypeScript
npm run dev 编译并立即运行
npm run watch 监听模式编译
npm run clean 删除 dist/
npm run example 运行示例脚本

部署方式

本地直接运行

node dist/src/index.js <sqlite-path>
node dist/src/index.js --mysql --host <host> --database <db> --user <user> --password <pass>

集成到 mcp-gateway / Claude Desktop

方式一:本地路径(适合开发调试)

{
  "mcpServers": {
    "mysql-db": {
      "command": "node",
      "args": [
        "/absolute/path/to/mcp-database-server/dist/src/index.js",
        "--mysql", "--host", "10.60.5.47",
        "--database", "dify_db", "--port", "3306",
        "--user", "root", "--password", "xjgc@1234"
      ]
    }
  }
}

方式二:发布到 npm(推荐,启动快有缓存)

# 修改 package.json 中的 name 字段后发布
npm publish
{
  "command": "npx",
  "args": ["-y", "@yourname/mcp-database-server", "--mysql", ...]
}

方式三:GitHub 直拉(推代码即用,无需发布)

{
  "command": "npx",
  "args": ["-y", "github:pixel2012/mcp-database-server", "--mysql", ...]
}

npx 会自动 clone → npm install(触发 prepare 脚本自动 npm run build)→ 运行。首次启动较慢,后续有缓存。

Docker 部署

docker build -t mcp-database-server .
docker run --rm -i mcp-database-server /path/to/database.db

项目结构

src/
├── index.ts                  # 入口:CLI 参数解析、MCP 服务器初始化
├── db/
│   ├── adapter.ts            # DbAdapter 接口 + 工厂函数
│   ├── index.ts              # 数据库工具函数(init, dbAll, dbRun 等)
│   ├── sqlite-adapter.ts     # SQLite 实现
│   ├── sqlserver-adapter.ts  # SQL Server 实现
│   ├── postgresql-adapter.ts # PostgreSQL 实现
│   └── mysql-adapter.ts      # MySQL 实现(含 AWS IAM 认证)
├── handlers/
│   ├── toolHandlers.ts       # MCP 工具列表分发
│   └── resourceHandlers.ts   # MCP 资源列表与读取
├── tools/
│   ├── queryTools.ts         # read_query, write_query, export_query
│   ├── schemaTools.ts        # create_table, alter_table, drop_table, list_tables, describe_table
│   └── insightTools.ts       # append_insight, list_insights
└── utils/
    └── formatUtils.ts        # CSV/JSON 格式化、错误/成功响应

Read the full file on GitHub · 168 lines

Changes

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.

  1. 2mo ago First seen · 168 lines · 1,821 tokens per session scan A 40de8b9f65e9

Subscribe to this mod's changes

mcp-database-server AGENTS.md is an instructions file published in the GitHub repository pixel2012/mcp-database-server (0 stars, last pushed 3mo ago), licensed MIT. It adds 1,821 tokens to every session, about $0.0073 per session on Opus 5.5. 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.

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