LENS identifies the bytes, encoding, structure and full SHA-256 first. FIX never trusts a filename alone.
Find the fault.
Repair the provable part.
FIX diagnoses the file before changing anything. It applies only bounded, deterministic repair rules, creates a new copy, verifies the result and can hand exact before/after text to DIFF.
JSONCSV / TSVYAML / XMLENCODINGZIPLOCAL
FIX ENGINE / V1.0DROP A FILE
DETERMINISTIC RULES ONLYNO SERVER UPLOADBEFORE / AFTER VERIFICATIONNO SILENT CORRUPTION
Only well-defined transformations are offered. Ambiguous truncation, excess columns and damaged archive structures remain review-only.
The source is untouched. The repaired File is analyzed again and receives its own full SHA-256 before download.
Compare text repairs against the original or send the verified output through BEAM Safe Send without a server file store.