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bb9c5ac017
Adds ADR-0010 superseding ADR-0009's spec-version target, PCDB
sequencing, and cert-calibration layer. Captures the conclusions
of a grill-with-docs session:
1. Active spec target is SAP 10.2 (14-03-2025), not SAP 10.3 — no
SAP-10.3-lodged certs exist in the corpus to validate against.
2. table_12_cert_calibration is deleted (not "re-derived at the
end"). It was pre-March-2025 spec prices fit against a mixture
distribution of two spec-version regimes, with downstream-
component bugs absorbed into the fit — not Elmhurst deviation.
3. Validation Cohort: filter the corpus to inspection_date ≥
2025-07-01 so every cert in the probe was lodged on SAP 10.2
(14-03-2025) prices. One spec, one signal.
4. PCDB integration is promoted from "Session C deferred" to
prerequisite P4 — dominates residual variance on heat pumps and
the 78% of gas-boiler certs lodging main_heating_data_source=1.
5. Trace mode (SapResult.intermediate) and BRE worked-example
fixtures replace the 7 cert-based golden fixtures, which
contained compensating errors.
6. Strict-type EpcPropertyData via codes.csv-derived canonical
enums (P6) — the in-source motivation lives at
dimensions.py:74-82 (Khalim's comment, included in this commit).
7. Worksheet-faithful structure is a sweep-time principle: each
worksheet module mirrors SAP 10.2 worksheet line numbering.
CONTEXT.md additions:
- Refined "Calculated SAP10 Performance" and "SAP10 Calculation"
to reference SAP 10.2 + ADR-0010.
- New term "SAP Spec Version" — domain-meaningful because the
same EpcPropertyData yields different sap_score under different
spec revisions.
- New term "Validation Cohort" — the version-locked sub-corpus.
HANDOVER_SYSTEMATIC_REVIEW.md is rewritten section-by-section to
reflect ADR-0010: §1 framing, §2 status pointer, new §2.5 with the
six prerequisites P1–P6 in dependency order, §3 diagnosis (cert-cal
was stale prices, not Elmhurst deviation), §4 scope (PCDB IN,
SAP 10.3 stays OUT), §5 approach (worksheet-faithful principle as
§5.5), §7 tension dissolved, §7b findings re-framed, §8 dead-ends
re-classified as conditional, §9 cohort filter, §10 fixture
strategy, §11 trace mode as prerequisite, §12 prereqs-first,
§13 Phase 0/Phase 1 workflow, §14 ADR-0010 reference, §15 final
note.
P2.1 (commit
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|---|---|---|
| .. | ||
| CALCULATOR_DESIGN_SKETCH.md | ||
| HANDOVER_FRESH_REVIEW.md | ||
| HANDOVER_SYSTEMATIC_REVIEW.md | ||
| PARITY_FINDINGS.md | ||
| rdsap-10-specification-2025-06-10.pdf | ||
| sap-10-2-full-specification-2025-03-14.pdf | ||
| sap-10-3-full-specification-2026-01-13.pdf | ||
| SPEC_COVERAGE.md | ||