# Postgres DB Demo

> Use this tool when you need to demonstrate and evaluate different approaches to interacting with a PostgreSQL database, from basic SQL queries to fully typed and annotated tools, in order to measure tool selection accuracy and optimize database exposure. It provides a range of interfaces, from free-form SQL to structured queries, and outputs evaluation metrics for tool performance. Ideal for educational settings, such as teaching database management and tool integration, or for testing and comparing database interaction methods.

Canonical page: https://skillsregistry.net/skills/pamelafox-postgres-db-demo  
JSON: https://api.skillsregistry.net/v1/skills/pamelafox-postgres-db-demo

## Description

Postgres DB Demo showcases four progressively stricter approaches to exposing a PostgreSQL database through MCP tools, from free-form SQL to fully typed annotated tools. Includes evaluation harnesses and agent implementations for measuring tool selection accuracy, developed as a teaching resource for the Posette 2026 conference.

## Trust

- **Trust score (0–1):** 0.63
- **Verification tier:** scanned
- **Last scanned:** 2026-09-01

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** database
- **Updated:** 2026-09-01

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/pamelafox-postgres-db-demo)
- **Repository:** <https://github.com/pamelafox/mcp-for-postgres-db-demo>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "pamelafox-postgres-db-demo"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/pamelafox-postgres-db-demo` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/pamelafox-postgres-db-demo/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt