No drift. Every file in a governed scope has a reason. The validator proves it.
HYGIENE is the structural cleanliness gate. It enforces file naming schema, detects drift, and flags constraint duplication across the governance tree.
| Gate | Type | Behavior |
|---|---|---|
| Schema compliance | SOFT | Warn on non-schema files (won't break build) |
| Constraint dedup | SOFT | Warn on parent-copied constraints |
| Allowed exceptions | PASS | Whitelisted files skip drift check |
| *HYGIENE | TOOLCHAIN | MAGIC* |
| Date | Event |
|---|---|
| 2026-02-27 | Initial scope — schema + constraint dedup gates |