Repowise scores chem-william/tng-rs at 4.5 out of 10 for code health, which reads as needs work, alongside maintainability 3.9 and static performance 9.3 on the same scale. There are 1,061 open findings across the three pillars, and the lowest-scoring file is xtc3.rs at 1.4. Scores are computed from complexity, duplication, churn and git fix history, not from a linter.