Validator errors should be treated as typed evidence. The goal is to move from a path-aware failure to a concrete fix without guessing.
| Error class | Likely meaning | Fix path |
|---|---|---|
| Missing field | A required field is absent for the selected profile. | Check profile requirements and add the missing value. |
| Type mismatch | A value exists but does not match the expected shape. | Check schema type, enum, array, or object requirements. |
| Registry mismatch | A compact or referenced value does not resolve against the registry. | Check the canonical registry route and refresh stale data. |
| Integrity failure | A checksum or reproducible anchor does not match the payload. | Regenerate the integrity record from the exact payload. |