# Grainulation > Open tools for clearer AI work. Grainulation builds Grainulator. Grainulation builds open tools for work with AI. Grainulator is its main product. It helps people keep the facts behind a result, check the work, and see what still needs review. ## Product - [Grainulator](https://grainulator.app/): product overview and a saved example of an evidence check. - [Setup guide](https://github.com/grainulation/grainulator/blob/main/docs/AGENT-SETUP.md): use Grainulator with Claude Code, Codex, or another agent. - [Source](https://github.com/grainulation/grainulator): code and documentation. The saved example does not make a new model request. Check the [setup guide](https://github.com/grainulation/grainulator/blob/main/docs/AGENT-SETUP.md) for installation details.