docs(decisions): D137 — cross-platform stripping + per-OS size ceilings#73
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docs(decisions): D137 — cross-platform stripping + per-OS size ceilings#73
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Records the architectural decisions behind PR #70: - Strip via LLD (`Module.strip = true` exposed as `-Dstrip=true`) instead of host `strip` tool. Portable across ELF / Mach-O / PE. - Per-OS ceilings (Mac 1.30 / Linux 1.60 / Windows 1.80 MB) with ~80-100 KB headroom each — regression guard, not parity target. - `size-matrix` becomes a 3-OS matrix because the same -Dstrip=true path solves the per-variant size measurement on every runner. Captures the alternatives we rejected (zig objcopy ELF-only; single global ceiling defeating the guard; default-true strip) so a future reader / bump knows why the current shape exists.
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… + per-OS size ceilings (#73)
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…fresh (#77) - CHANGELOG.md [Unreleased]: tag the Plan C-a/b/c/d/e/f and W52 entries with their PR numbers (#68/#69/#71/#70/#72/#74) so the next /release roll-up has authoritative provenance; add D137 to the Internal section (cross-platform stripping + per-OS size ceilings, recorded post-#73); add one-line entries for the doc-alignment sweep (#75) and the obsolete-checklist drop (#76). - .dev/memo.md ## Current Task: append #74/#75/#76 to the post- morning PR list (was "Six new PRs", now "Nine"); replace the "in flight: #74" paragraph with #74 in the merged list; bump bench-record range to #68..#76. The "Plan B sub-3 / W50 still pending" pointer through resume-guide.md remains intact. No behaviour change. Doc-only.
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Summary
Records the two architectural decisions that landed in PR #70 (Plan C-e + C-f) so a future reader / bump knows why the current shape exists rather than reverse-engineering it from the diff.
-Dstrip=true(build.zig) sets `Module.strip = true` on the CLI module; LLD strips on every Zig target — ELF, Mach-O, PE/COFF. The host `strip` path is unfixable on Windows and `zig objcopy --strip-all` is ELF-only.Also captures the alternatives we rejected (zig objcopy ELF-only; single global ceiling defeating the guard; default-true strip) and the future-bump policy (tightening encouraged on sustained reductions; loosening requires a CHANGELOG entry naming the regression source).
Test plan