STARDUSTLC666/dsh-sql

DeepSeek Harness 工程师级数据库插件:sql_list/query/exec/schema 四工具,SQLite/MySQL/PostgreSQL 三引擎、只读白名单、写审批门、行数钳制。· Databases for DeepSeek Harness agents.

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What it does

Database tools for agents: list/query/exec/schema across SQLite/MySQL/PostgreSQL, with lexer-grade read-only protection, row caps and an approval-gated write path.

Best for

  • Agents that need to inspect schemas and query SQLite, MySQL, or PostgreSQL through a consistent tool set.
  • Operational workflows that need lexer-level read-only checks, row caps, and streaming truncation for queries.
  • Controlled database maintenance where writes and DDL should pass through an approval gate.

Not ideal for

  • Headless environments that must perform writes while approval is enabled; writes are rejected when no approval channel exists.
  • Write workflows against connections configured in read-only mode.
  • SQLite deployments below Node.js 22.13, which lack the documented built-in node:sqlite requirement.

README

English

dsh-sql

你的 agent 会查库了:SQLite / MySQL / PostgreSQL 三引擎,只读白名单 + 写审批门。

DSH(DeepSeek Harness)工程师级数据库插件:四个工具覆盖连接管理、只读查询、写操作与结构探查。

npm version npm downloads license stars

Awesome DSH Plugin

安装

dsh plugin --profile web add dsh-sql

配置

- id: sql
  name: 'dsh-sql'
  config:
    connections:
      - name: local
        engine: sqlite
        file: E:\data\app.db          # 或 :memory:
      - name: prod
        engine: postgres
        host: db.internal
        database: app
        # password: xxx              # 推荐环境变量 DSH_SQL_PASSWORD_PROD
      - name: legacy
        engine: mysql
        host: 127.0.0.1
        port: 3306
        user: root
        database: legacy
    maxRows: 1000                     # 查询返回行数上限(1-10000)
    queryTimeoutMs: 60000             # 单次查询超时(默认 60 秒,5 秒 - 10 分钟)
    execTimeoutMs: 120000             # 单次写操作超时(默认 120 秒,5 秒 - 10 分钟)
    readOnly: false                   # true 时禁用 sql_exec
    writeApproval: true               # 写操作先弹审批(默认 true)

工具一览

工具 作用 安全
sql_list 列出连接 + 连通性测试 —
sql_query 只读查询(SELECT/PRAGMA/EXPLAIN/SHOW/DESCRIBE/WITH) 关键字白名单 + 拒绝多语句
sql_exec 写操作/DDL(可多语句脚本) readOnly 禁用 + 审批门
sql_schema 表清单 / 表结构 标识符白名单校验
示例
sql_list {}
sql_schema {}                                  # 列出所有表
sql_schema { table: users }                    # 看 users 表结构
sql_query { sql: SELECT * FROM orders WHERE status = 'pending' LIMIT 50 }
sql_exec { sql: UPDATE orders SET status = 'paid' WHERE id = 42 }

安全设计

  • 词法级只读保护:sql_query 先剥离字符串/注释再校验,拒绝 data-modifying CTE(WITH…DELETE/UPDATE)、SELECT INTO、FOR UPDATE/FOR SHARE、PRAGMA 赋值与多语句
  • 写审批门:sql_exec 默认弹审批(对齐 dsh-email 的发信审批),headless 环境无审批通道时拒绝执行
  • readOnly 模式:生产库可整体禁用写
  • 流式行数钳制:SQLite 迭代器 / MySQL stream / PostgreSQL portal 都按 maxRows+1 停表,大查询不会全量载入内存,超量标记 truncated
  • 标识符校验:表名只允许字母/数字/下划线,杜绝 schema 注入
  • 密钥不落配置:密码支持 DSH_SQL_PASSWORD_<连接名> 环境变量

引擎

  • SQLite:Node 22.13+ 内置 node:sqlite,零依赖
  • MySQL:mysql2 连接池
  • PostgreSQL:pg 连接池

开发

pnpm install
pnpm test       # 构建 + 35 个测试(含真实 SQLite 集成)

License

MIT

Frequently Asked QuestionsFAQ

Use the verified command dsh plugin --profile default add github:STARDUSTLC666/dsh-sql in a DSH-enabled shell. The command resolves the public package metadata and keeps the plugin attached to the catalog identity shown on this page.