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feat(variation): add validated Morris sensitivity screening - #4393

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feat/4144-variation-export-continuationfrom
codex/4142-global-sensitivity
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feat(variation): add validated Morris sensitivity screening#4393
d-sorgcodexagent[bot] wants to merge 6 commits into
feat/4144-variation-export-continuationfrom
codex/4142-global-sensitivity

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Summary

  • add a deterministic, validated Morris elementary-effects design and analysis contract for epic Epic: Ensemble variation, swing quiet zones, and sensitivity attribution #4142 R13.2-R13.4
  • report signed and absolute effects, dispersion, standard error, adequacy, provenance, source locus, units, frame, and typed availability
  • preserve valid pre-impact/state-point metrics for no-impact trials while never fabricating impact or shot outputs
  • distinguish total typed no-impact pairs from output-unavailable no-impact pairs and retain failure/non-finite denominators
  • publish a versioned JSON golden contract for the future React consumer
  • update SPEC and all three canonical Rate of Closure handoffs in the implementation commit

Scope boundary

This PR intentionally does not implement the simulation execution adapter, React/PyQt views, exports, UpstreamDrift consumption, or large-ensemble performance qualification. Those remain tracked follow-ups. It does not touch the UI/export implementation in parent PR #4280.

Validation

  • full variation package: 109 passed
  • focused Morris suite: 16 passed
  • Ruff check and Ruff format: passed for the variation package
  • scoped MyPy: passed
  • changed-Python, docs-governance, minimum-test, file/function-size, and git diff --check: passed
  • independent critical engineering review: GO

Stack

Base: feat/4144-variation-export-continuation at 7fb5d7f489db49742b7bc82ef009570ad2502456 (PR #4280). Preserve parent order; do not retarget or merge this child before its protected parent.

Tracks #4142 and #4144.

dieterolson and others added 5 commits August 6, 2026 05:37
* feat(golf-club): add assembly physics contracts

* fix(golf-club): satisfy assembly mypy gate

* fix(club-builder): support Python 3.10 enums

* fix(ci): detect mirrored shared-package tests

* fix(ci): include UpstreamDrift package roots
…n default tab initializers (#4176)

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
Co-authored-by: dieterolson <198168927+dieterolson@users.noreply.github.com>
Replaced `.split(':')` and `.join(':')` with `indexOf` and `substring` in
the `parseKeyValue` function inside `ODESolverCalculator.tsx`.

This eliminates unnecessary intermediate array allocations and closure
executions, reducing garbage collection pressure and function call
overhead in the React component's rendering loop.

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
Co-authored-by: dieterolson <198168927+dieterolson@users.noreply.github.com>
…42-global-sensitivity

# Conflicts:
#	SPEC.md
#	src/shared/python/golf_club/__init__.py
#	tests/ops/test_cross_repo_python_integration.py
#	tests/shared/python/golf_club/test_contracts.py
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