dbhub

A database service that lets an AI agent connect to PostgreSQL, MySQL, MariaDB, SQL Server, or SQLite and explore their schemas. A schema describes the tables, columns, and relationships in a database.

In plain words
What is it for?
Configuring a database connection with a DSN, then exploring tables and other schema details across the supported database systems.
Why use it?
It reduces the amount of database structure an agent must load or inspect manually. A read-only, least-privilege account can limit the connection's ability to change data.

Plugin for Claude Code

Install

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.

Claude Code
/plugin marketplace add bytebase/dbhub
agentmods
npx agentmods add plugins/bytebase/dbhub/plugin
Clone the repo
git clone --depth 1 https://github.com/bytebase/dbhub

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

dbhub 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.

plugin/.claude-plugin/plugin.json · 31 lines

What it actually says

{
  "name": "dbhub",
  "description": "Token-efficient database MCP server for PostgreSQL, MySQL, MariaDB, SQL Server, and SQLite, with skills for connection setup and schema exploration",
  "version": "1.2.1",
  "author": {
    "name": "Bytebase",
    "url": "https://www.bytebase.com"
  },
  "homepage": "https://dbhub.ai",
  "repository": "https://github.com/bytebase/dbhub",
  "license": "MIT",
  "keywords": [
    "database",
    "sql",
    "postgres",
    "mysql",
    "mariadb",
    "sqlserver",
    "sqlite"
  ],
  "userConfig": {
    "dsn": {
      "type": "string",
      "title": "Database connection string (DSN)",
      "description": "Examples: postgres://user:password@localhost:5432/dbname | mysql://user:password@localhost:3306/dbname | mariadb://user:password@localhost:3306/dbname | sqlserver://user:password@localhost:1433/dbname | sqlite:///path/to/database.db. Append ?sslmode=require for SSL. Use a least-privilege, read-only database account.",
      "sensitive": true,
      "required": true
    }
  }
}
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. yesterday First seen · 31 lines scan A 5e6b0a80997c

Subscribe to this mod's changes

dbhub is a plugin published in the GitHub repository bytebase/dbhub (3,431 stars, last pushed 11d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.