I did! The issue however, is having a clear, deterministic method of defining when the code review was 'done'. So the hooks can fire off subagents, but they are non-deterministic and often miss vital code review comments - especially ones that are marked in an inline comment, or are marked as 'Out of PR Scope' or 'Out of range of the file' - which are often the MOST important comments to address!

So gtg builds all of that in and deterministically determines whether or not there are any actionable comments, and thus you can block the agent from moving forward until all actionable comments are thoroughly reviewed, acted upon or acknowledged, at which point it will change state and allow the PR to be merged.