harlequin

popularlocal-onlydatabasebrew

Ted Conbeer · A SQL IDE for DuckDB, SQLite, and Postgres in the terminal.

$ brew install harlequin
One-liner to try
$ harlequin

Agent pack

Copy into an agent

A markdown-ready setup brief with install, verify, safe starting commands, and guardrails for AI agents.

Open .mdJSON
Readiness
Human-first CLI · 10/100
Verify
harlequin --version
Agent URL
/cli/harlequin/agent.md

Quick reference

Install
brew install harlequin
Verify
harlequin --version
First command
harlequin
Machine JSON
/cli/harlequin.json

About

A SQL IDE for DuckDB, SQLite, and Postgres in the terminal. Built by Ted Conbeer. Start with `harlequin` and go from there. Runs entirely on your machine.

Example workflow

1. harlequin
2. harlequin --adapter sqlite
3. harlequin --help

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