V3 bounded local rsync preview capability pack. By-value connector composition (service_kind=cli, no separate ingredient): one local rsync CLI ingredient exposes fixed operations for readiness, source tree listing, recursive dry-run sync preview, archive-mode dry-run sync preview, and checksum dry-run sync preview. All filesystem operations require approval because they can reveal local path names, directory shape, file sizes, modification times, planned deletions, and sync topology. Every non-version operation is fixed to --dry-run, rejects remote rsync/SSH syntax by disallowing colons and URL-like inputs, and exposes no actual transfer, delete mutation, remote endpoint, rsync daemon, SSH transport, filter/include/exclude files, password file, batch write/read, backup paths, chmod, partial files, progress streaming, arbitrary flags, environment override, stdin, output-file write, or shell wrapper. Requires rsync or OpenRsync on PATH.