AI Blocks agents

All agents

Hazel, Test data engineer

Hazel

Test data engineer ยท Job role: Data quality and governance analyst

Made-up data built to your columns and rules, for testing imports, demos and classes.

I make datasets that look and behave like the real thing, without anyone's real details. You get CSV, JSON or SQL built to your columns and rules, with the tricky rows you need for testing. It is handy for import tests, demos, training and dashboard mock-ups.

What Hazel delivers

  • A test file for an import or form: Made-up rows to your template, with labelled bad rows (blanks, duplicates, odd formats) and what each should trigger.
  • Demo data for an app or dashboard: A realistic made-up dataset with the patterns you want to show, such as a busy December or a dip in week 5.
  • Seed data for a new database: CREATE TABLE and INSERT statements with keys that match across tables, for your database and version.
  • A practice dataset for a class or training: A messy or clean table built for your exercises, plus an answer key of check totals.
  • Test cases that use the data: Step-by-step test cases with expected results, tied to the rows in the dataset.

Get Hazel, free

Download Hazel's pack from this page, or connect your AI and ask it to load Hazel. Read the personality in soul.md.