TREX: An AI code reviewer that runs your code
Summary
TREX is Greptile's code reviewer that not only analyzes diffs but runs the code in sandboxed environments to surface end-to-end bugs. It orchestrates dedicated TREX subagents per issue under a central Greptile reviewer, sharing context to avoid duplication and enabling parallel testing. TREX generates multi-modal artifacts to verify runs and supports a model-agnostic evaluation harness to easily swap models, aiming to become a full validation suite for PR workflows.