Release v1.9.0 — the tower-tip epoch (tip_mass 0.25 + MAP-containment law, ADR-019 Am. 3)#202
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…containment law (ADR-019 Amendment 3) → v1.9.0 (#201) The tower-tip MAP is now the median of the TOP floor of the published tower (tip_mass default 0.5 → 0.25), matching the design intent the name always promised. Evidence (research/map_hdi/tip_mass_study.py: 1000-replicate accuracy/stability battery, duplicate-capture frontier, the real-cell C-44 gate): the 0.5 shorth carried a structural rightward bias that does not shrink with S; 0.25 roughly halves it, beats the shorth on RMSE at pooled S, reads zero-inflated cells exactly, and passes the real-cell zero-stack gate with margin (masses <= 0.15 resurrect the C-44 signal loss; 0.20 has zero margin). New MAP-containment law in assert_summarizer_contract: every floor holding more than half the tip floor's draws (a mass-m floor spans floor(m*S)+1 draws; asymptotically m > tip_mass/2 = 12.5%) provably contains the tip — wider floors by nesting, narrower qualifying floors by the sub-window trim argument. All published bands (50/90/95/99) qualify; the unguaranteed region shrinks vs 0.5. Also: research/figures/ — permanent seeded generators for the PRN06 tower figures (upright tower: 99% base at the bottom narrowing to the red 25% top floor with the tip on it; degenerate zero-width bands rendered as open diamonds), reports/plots/ as the gitignored output home, and the provenance/ placement research note (plotting lives under research/, never src/ — the sibling charters exclude it six times over). Governance: ADR-019 Amendment 3; Summarize CIC §3 + header amendment; CHANGELOG [1.9.0]; README banner + chronicle (banner guard green). Consumer note: published MAPs shift toward the mode on skewed cells — the intended C-32 direction. CONFORMANCE_FLOOR stays 1.0.0. Gate: ruff / mypy (3.10+3.11) / pytest 100% line+branch / validate_docs all green. Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
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development→mainfor v1.9.0. Trial-merge clean; merged tree identical todevelopment. Merge with a MERGE COMMIT, not squash (dev/main-divergence rule).What ships (MINOR;
CONFORMANCE_FLOORstays 1.0.0)tip_mass0.5 → 0.25 (ADR-019 Amendment 3): the tower-tip MAP is the median of the topfloor of the published tower. Evidence in
research/map_hdi/tip_mass_study.py(bias halved,RMSE win at pooled S, exact zero-inflation reads, real-cell C-44 gate passed with margin).
assert_summarizer_contract(exact draw-count condition;asymptotically every HDI of mass > 12.5% provably contains the MAP).
research/figures/tower-figure toolkit + provenance note;reports/plots/gitignored.direction) — downstream repos (faoapi/reporting) will see numerically different MAPs.
After merge + green CI:
gh release create v1.9.0(version-guard: 1.9.0 > 1.8.1 on PyPI).🤖 Generated with Claude Code