Read-only Phase 64 boundary
This Tool exposes one distinct Nintendo structural diagnostic already supported by strict SaveEditor parsers. It never repairs, decrypts, resigns, migrates, converts, inserts, deletes, or rewrites save bytes.
Fail-closed evidence
Output is bound to the selected source by SHA-256. Invalid geometry, malformed checksums, ambiguous redundant metadata, unsupported wrappers, or out-of-range header relations are refused rather than guessed.
N64 Controller Pak Index Page Inspector
Inspect the two checksum-protected Controller Pak index pages and agreement state.