Hello, I had this patch (for issue 11992) for a while now at the bug system. The problem I'm having is that in order to to run the test suite properly I need to run some code before merging the slice and then just before running the test suite. And as a consequence, I'm not notified whenever some other patch that gets integrated breaks my code. I have read that you can use metacello to configure post and preLoad hooks for a project. I'm not sure if this could work for the fogbugz CI, also since you need to add a class in order to use metacello it would probably get integrated into the image which is not what I intend. Is there then some easy way so run some code before the CI merges the patch and just before the test suite runs?. PS1: Sorry is the answer for this turns out being pretty obvious, I'm not that familiar with metacello. PS2: The issue haven't receive a lot of attention probably because it's been at 'Work Needed' state since forever, maybe it would help if the test suite passes. PS3: Here's a link to the issue https://pharo.fogbugz.com/f/cases/11992/Remove-tokens-from-the-AST-Core-Node... . Thanks, Pablo