Astra will build a test suite for a typo fix unless you tell it not to. Paste this first on small tasks, at low or medium: API reasoning.effort "low" for a rename or a config change, Codex Astra Light. The rules are OpenAI's own recommended text for two documented Astra behaviours: it tests more broadly than small tasks need, and it asks more questions than earlier models where a reasonable assumption would do. Free template — copy and paste into ChatGPT, Claude, or Copilot.