__example_postgres__

A local connection that lets the agent inspect a PostgreSQL database's structure and run SQL queries that only read data. PostgreSQL is a database system, and SQL is the language used to query it.

In plain words
What is it for?
Use it to review tables and relationships, understand an existing schema, and answer questions with read-only database queries.
Why use it?
It lets the agent examine database information without changing records through the connection.

MCP server for Claude CodeCodexCursor

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.

agentmods
npx agentmods add mcp/sanpicule/claude-config/__example_postgres__
Clone the repo
git clone --depth 1 https://github.com/sanpicule/claude-config

Made for: Claude Code, Codex, Cursor.

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

__example_postgres__ 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 2d 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.

.mcp.json · 11 lines

What it actually says

{
  "__example_postgres__": {
    "__comment__": "例: PostgreSQL への読み取り専用接続。接続文字列はダミー。本番 DB を指定しないこと。",
    "command": "npx",
    "args": [
      "-y",
      "@modelcontextprotocol/server-postgres",
      "postgresql://user:pass@localhost:5432/dbname"
    ]
  }
}
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. 2d ago First seen · 11 lines scan A 61ef7602f8b1

Subscribe to this mod's changes

__example_postgres__ is an MCP server published in the GitHub repository sanpicule/claude-config (2 stars, last pushed 3mo ago), licensed MIT. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. 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.