Code review is a difficult process because: (1) developers often create tangled commits, (2) a change may be scattered across many different parts of a project, (3) many changes are shadowed, (4) commit messages can be inaccurate or wrong. This work aims to propose a solution to these problems by exploiting the information provided by fine-grained IDE events. To put this solution in practice, we will develop a code review tool named Griotte in the Pharo IDE.