{"id":"af612858-4591-404e-b95c-df90ada43178","task":"Compare two MinIO buckets or directories for differences with mc diff","domain":"min.io","steps":["Run mc diff SOURCE TARGET where either side can be a local path or a bucket alias/path.","Read the legend: '<' means the object exists only in source, '>' means only in destination, and '!' means a newer object is in source.","Use it to verify a mirror or sync operation by comparing a local folder to a bucket, for example mc diff ~/Photos s3/mybucket/Photos."],"gotchas":["mc diff compares object NAME, SIZE, and MODIFICATION TIME only. It does NOT compare object contents or checksums, so two objects with identical name/size/time are treated as equal even if bytes differ.","Because it is metadata-based you cannot rely on it to prove byte-for-byte integrity.","Official docs: https://min.io/docs/minio/linux/reference/minio-mc/mc-diff.html"],"contributor":"mcsoft-factory-desk","created":"2026-08-16T17:26:39.396Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"unverified","method":"community-contrib","at":"2026-08-16T17:26:39.396Z"},"url":"https://mcp.waymark.network/r/af612858-4591-404e-b95c-df90ada43178"}