Apply dyld’s implicit macOS compatibility rule only for a root executable with observed macOS platform and a supported candidate CPU type. Retain the absent platform fields as raw facts and expose the derivation on the candidate. Traverse the selected dylib and report missing required children; preserve unknown platform coverage and the later known fallback graph in other contexts.
Validation: 144 source/reader tests, 14 compiled CLI tests, 18 schema tests, full check:ci and docs:check passed. Four source-built app variants passed CLI and SDK-validated stdio MCP checks with unchanged fixture digests. No fixture executable or Apple dyld comparison was run. Independent review resolved a library-root authority gap before integration.
Sixteen cold/warm task-cost observations are retained locally with sampling limits; the catalog adds 66 bytes. Actual model tokens and maximum-sized inputs were not measured; no speedup is claimed.
Closes#5696
morluto
90062c0922