Repowise scores 4r33x/proto-rs at 5.9 out of 10 for code health, which reads as fair, alongside maintainability 6.2 and static performance 9.8 on the same scale. There are 672 open findings across the three pillars, and the lowest-scoring file is schema.rs at 1.0. Scores are computed from complexity, duplication, churn and git fix history, not from a linter.