PostgreSQL Query

Run read-only PostgreSQL queries via psql with writes blocked by default.

1|1|Updated Jan 23, 2026

Search Tags:#database #postgresql #schema #query #psql #read-only #data-exploration

Ready to run

npx skills add https://github.com/Anras573/AIchemist --skill postgresql-query

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: PostgreSQL Query
Source: https://github.com/Anras573/AIchemist/tree/main/skills/postgresql
Command: npx skills add https://github.com/Anras573/AIchemist --skill postgresql-query

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This skill enables safe PostgreSQL querying by performing automatic read operations while blocking writes by default, preventing accidental data modification during exploration.

Core Features & Use Cases

Read-first querying: automatic SELECTs and schema exploration without requiring explicit write permissions.
Safe data access: writes require explicit opt-in, ensuring guardrails during analytics and debugging.
Use Case: A data analyst quickly retrieves sample rows from a production database to validate a hypothesis without risking data integrity.

Quick Start

Run a simple SELECT query against the connected PostgreSQL database and return the results in a readable format.

Frequently Asked Questions about PostgreSQL Query

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I safely query a PostgreSQL database without accidentally modifying data?▼

You can safely query a PostgreSQL database by using a read-only mode that performs SELECT operations and blocks writes by default. This guardrail prevents accidental data modification during schema exploration and data retrieval.

Can I run write operations like INSERT or UPDATE through this PostgreSQL query tool?▼

Write operations like INSERT or UPDATE are blocked by default to ensure safe data access. You must provide explicit opt-in to enable writes, ensuring strict guardrails are in place during analytics and debugging sessions.

How do I explore a database schema using the psql client?▼

You can explore a database schema using the psql client by running automatic read operations against the connected PostgreSQL database. This allows quick data retrieval and schema exploration across different environments without write permissions.

Do I need a specific connection string to retrieve sample rows from a production database?▼

Yes, you need a POSTGRES_URL connection string to retrieve sample rows from a production database. The tool operates via the psql client using this URL to establish a safe, read-only connection for validating hypotheses.

What are the limitations of using a read-only PostgreSQL query approach?▼

The limitation of read-only PostgreSQL querying is that all write operations are blocked unless explicitly enabled. This means you cannot modify data during exploration without first opting into write permissions.