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SSI candidate undercount: modeled eligible mass far below SSA recipient counts

Status: Open.

#424 In PolicyEngine/populace;

· MaxGhenis opened on Jul 14, 2026

SNAP state take-up: fill rates use pre-mass-repair weights and the export drops the eligibility surface — calibrated caseloads don't reproduce from the artifact

Status: Open.

#419 In PolicyEngine/populace;

· daphnehanse11 opened on Jul 13, 2026

Child-support expense prevalence: survey-faithful 0.47% vs retired eCPS's drifted 2-3% vs OCSE-implied ~1.5-2%

Status: Open.

#417 In PolicyEngine/populace;

· MaxGhenis opened on Jul 13, 2026

Should *_would_be_qualified columns be derivations rather than QRF targets?

Status: Open.

#416 In PolicyEngine/populace;

· MaxGhenis opened on Jul 13, 2026

Published release exports can no longer serve as --base-h5: QBI input reconciliation requires base-only PUF columns

Status: Open.

#412 In PolicyEngine/populace;

· daphnehanse11 opened on Jul 13, 2026

Year-keyed support exclusions don't fence other vintages: ty2020 W-2 tips facts compiled the excluded tips family

Status: Open.

#411 In PolicyEngine/populace;

· daphnehanse11 opened on Jul 13, 2026

Regenerated ledger feeds fail the period contract: year-filtered bundles drop the CBO aging pivot and prior-year SOI tables

Status: Open.

#410 In PolicyEngine/populace;

· daphnehanse11 opened on Jul 13, 2026

ACS-multispine staging: SSI probe finds spine-inconsistent incidence (2.6% vs 1.9% baseline rate) and weight-composition skew (ASEC 1.5 persons/hh, ESS 0.3%)

Status: Open.

#403 In PolicyEngine/populace;

· MaxGhenis opened on Jul 13, 2026

Release contract needs dataset-role classes: national-default checks reject valid non-default local-area artifacts

Status: Open.

#398 In PolicyEngine/populace;

· MaxGhenis opened on Jul 12, 2026

Coverage gate: add effective-mass (weighted-support) semantics — signal on zero-weight rows must not count as restored

Status: Open.

#396 In PolicyEngine/populace;

· MaxGhenis opened on Jul 11, 2026

Canonical multispine operator ordering: assemble spines first, then clone/impute/derive/seed/simulate/calibrate

Status: Open.

#395 In PolicyEngine/populace;

· MaxGhenis opened on Jul 11, 2026

Dense arm fails input-mass parity on miscellaneous_income (−58%); Build M dense needs a target-side remedy

Status: Open.

#393 In PolicyEngine/populace;

· MaxGhenis opened on Jul 11, 2026