Expose the selected Mach-O slice and its container offset, derive that identity once, and map entrypoint and nonempty segment Evidence to container coordinates. Reject relocation sections whose byte length is not divisible by the entry size instead of silently accepting a floored count.
Validation: native parser and selected-architecture boundaries, actual public CLI and stdio MCP on a compiled universal Mach-O, and a pyelftools 0.33 malformed-table probe. Full Linux pwntools bridge verification was unavailable on this host.
Refs #1973
Keep the configured launcher alive while its limited Python child runs so ownership checks retain the admitted executable identity. Trigger memory exhaustion with one oversized ELF zero-fill tail rather than racing section traversal against a timeout.
Adapted from #1357. JavaScript syntax, strict C syntax compilation, formatting, and static checks passed. The Linux pwntools verification lane was not run on this macOS host.
Co-authored-by: You Wish <29498139+Y0UW1SH@users.noreply.github.com>