Open CLI
Curated task stack

Best CLIs for Data & DB.

Inspect schemas, run safe queries, and understand your data fast. This is a ready-to-share stack with install commands, verification checks, agent packs, and guardrails.

inspect a database →query CSVs with SQL →review schema changes →
Primary CLI
Harlequin

harlequin is a strong fit for data & db. harlequin responds locally and is ready for the first real command.

Agent pack
harlequin fits data & db well, especially for Exploring local SQL visually when a prompt-only shell is too cramped.
A solid pick from Ted Conbeer.
Verify with `harlequin --version` first.
Stack

Install, verify, then work.

1. Data & DB
Harlequin

Curated OpenCLI pick

Pack
Install
brew install harlequin
Verify
harlequin --version
Agent loop

Safe database loop

  1. 1Verify connection details and inspect tables or schema first.
  2. 2Run read-only queries and summarize findings.
  3. 3Propose follow-up queries or exports based on the result.
  4. 4Ask before writes, resets, or migrations.
Safety

Guardrails

  • • Automation can be brittle.
  • • Output is mostly plain text.
  • • Better for local use than CI.
  • • Ask before destructive, paid, deploy, send, merge, publish, or secret-exposing actions.