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Slice S0380.29: tighten _ASHP_COHORT_CHAIN_TOLERANCE 0.07 → 0.04

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Post-S0380.28 (Appendix N footnote 43 reciprocal η interpolation), the
ASHP-cohort chain-test residuals collapsed:

  Summary path:
    cert 0380:  +0.000001  (was +0.034)
    cert 0350:  +0.000022  (was ~+0.046)
    cert 2225:  -0.000048  (was ~+0.044)
    cert 2636:  -0.014945  (was ~+0.003 — cantilever-specific)
    cert 3800:  -0.000020  (was +0.021)
    cert 9285:  -0.000034  (was +0.021)
    cert 9418:  -0.000000  (was +0.00004)

  API path (cohort handover thread 4 — open):
    cert 0380:  +0.025273
    cert 0350:  +0.030594  (worst)
    cert 2225:  +0.028517
    cert 2636:  +0.014705
    cert 3800:  +0.023327
    cert 9285:  +0.028674

The previous 0.07 tolerance gave 130%+ headroom over the pre-slice
worst residual; with S0380.28 closing the cluster the same tolerance
gives 130%+ headroom over the post-slice API worst (0.031), letting
regressions hide for a long time before firing.

0.04 gives ~30% headroom over the API path's worst residual (cert
0350 +0.0306) and ~170% over the Summary path's worst (cert 2636
-0.015 — the cantilever fixture). Fires loudly on any regression
beyond the documented API-path residual cluster.

Tightens 15 chain tests (8 Summary path + 7 API path). All pass.

Tests: 710 pass (unchanged), 10 expected fails unchanged.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Khalim Conn-Kowlessar 2026-05-28 11:49:56 +00:00
parent 081bb8fd7e
commit e27b923bca
1 changed files with 10 additions and 2 deletions
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12
backend/documents_parser/tests/test_summary_pdf_mapper_chain.py
View file

@ -1729,8 +1729,16 @@ _API_9285_JSON = (
/ "9285-3062-0205-7766-7200.json"
)
_ASHP_COHORT_CHAIN_TOLERANCE: float = 0.07
"""SAP-precision floor for the 7-cert ASHP cohort — see handover."""
_ASHP_COHORT_CHAIN_TOLERANCE: float = 0.04
"""ASHP-cohort chain-test tolerance after S0380.28 (reciprocal-linear
PSR interpolation per SAP 10.2 Appendix N footnote 43). Pre-slice the
cohort sat at +0.03..+0.06 SAP and this constant was 0.07. Post-slice:
Summary path: 6 of 7 certs hit < 1e-4; cert 2636 -0.015 (cantilever)
API path: all 6 certs hit +0.014..+0.031 (cohort-residual cluster
— open thread; Summary EPC ≠ API EPC for a load-bearing
field — see [[project-api-to-sap-residual-test]])
0.04 gives ~30% headroom over the API path's worst residual (cert 0350
+0.031) and fires loudly on regression beyond the documented residuals."""
def test_api_0380_full_chain_sap_within_spec_floor_of_worksheet() -> None: