From 390a81858706cd824818598bf01e3f2bbfe2cba2 Mon Sep 17 00:00:00 2001
From: Khalim Conn-Kowlessar <kconnkowlessar@gmail.com>
Date: Wed, 15 Jul 2026 00:05:13 +0000
Subject: [PATCH] Ratchet the pashub accuracy gauge to 19% within-0.5 / MAE
 1.39

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
---
 .../tests/test_pashub_sap_accuracy.py              | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/backend/documents_parser/tests/test_pashub_sap_accuracy.py b/backend/documents_parser/tests/test_pashub_sap_accuracy.py
index e84f3d037..37ada113f 100644
--- a/backend/documents_parser/tests/test_pashub_sap_accuracy.py
+++ b/backend/documents_parser/tests/test_pashub_sap_accuracy.py
@@ -84,7 +84,9 @@ _MANIFEST_PATH = _FIXTURES_DIR / "manifest.json"
 # dispatched into the §2 ACH cascade instead of defaulting to NATURAL): 76/205
 # cohort fixtures lodge a mechanical system; observed 18.5% within-0.5,
 # MAE 1.730 — the campaign's largest single move.
-_MIN_WITHIN_HALF: float = 0.18
+# Ratcheted 0.18 -> 0.19 by the dig-round-3 fixes (see the MAE note below):
+# observed 20.0% (41/205).
+_MIN_WITHIN_HALF: float = 0.19
 # Ratcheted 2.71 -> 2.64 by #1590 bug 2 (roof "Insulation At: None" -> explicit
 # zero thickness): observed MAE 2.632 — the two ~7-SAP roof over-raters
 # (507665533138 / 507670893756) correcting is exactly 14/205 ≈ 0.07 of MAE.
@@ -103,7 +105,15 @@ _MIN_WITHIN_HALF: float = 0.18
 # the accredited 43 (was pashub's preliminary 53). 58 Hackle Street D58 and
 # 16 Bingley Close E52 were CONFIRMED correct — our +7.8/+5.7 deviations there
 # are extraction bugs to hunt. Observed MAE 1.551.
-_MAX_SAP_MAE: float = 1.56
+# Ratcheted 1.56 -> 1.39 (and within-0.5 0.18 -> 0.19) by the dig-round-3
+# fixes: (a) RIR roof-insulation threading now respects the per-surface
+# "insulation known? No" answers (Brightholme, whose loft hatch was screwed
+# shut, +7.3 -> +0.6); (b) the surveyed "Wall Dry-Lined? Yes" (39/205
+# fixtures) reaches the §5.8/Table 14 wall-U adjustment; (c) the Bingley
+# community residual — cylinder insulation label int-coded so storage loss
+# bills, Table 3 primary loss + RdSAP p.59 flat-rate charging default on the
+# water-only heat-network branch (+5.7 -> +3.2). Observed 20.0% / MAE 1.383.
+_MAX_SAP_MAE: float = 1.39
 
 _KNOWN_GAP_REASON = (
     "pashub `from_site_notes` mapper does not int-code a main-heating "