Curated scenario surface: deltas-only API over the cached pinned run - #4
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- src/define_uk/scenarios.py: registry of all 22 upstream scenarios (4 blocks; power-sector block under 5 expectation regimes); run_scenario() returns annualised scenario-minus-baseline delta paths with calendar years, provenance, and mandatory deltas-only framing. Reads the cached run only; never runs R. - tests/test_scenarios.py: gates deltas finite, cross-block baseline consistency, cached-number-grounded sign sanity, 11 pinned points. - VALIDATION.md targets 2/3 PARTIAL (oracle-gated; published-figure comparison pending — no machine-readable numbers on define-model.org). - README: scenario surface documented, local-only, deltas-only. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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What
src/define_uk/scenarios.py: curated registry of all 22 upstream scenarios found in the cached pinned run (blocks:gvt_investment,housing_regulation,power_sector_regulationunder five expectation regimes,mixed).list_scenarios()-> [{name, block, description}];run_scenario(name, variables=("GDP_R","EMIS","UPLOT","CONS_R"), horizon_years=15)-> annualised scenario-minus-baseline delta paths (level and %), calendar years (1987Q1 anchor), provenance (pinned commit, cache path, R run date),result_type="scenario deltas"and mandatory caveats (demand-led closure; deltas only — baseline levels not validated; emissions vintage divergence; experimental; unlicensed upstream, local cache only). Reads the CACHED run; never runs R — raises with instructions if no cache.tests/test_scenarios.py(skips without cache): deltas finite + framing fields present for all 22 scenarios; baselines identical across block folders; sign sanity grounded in the cached numbers (green public investment: early GDP dip then +4.08/+7.75 by 2030/2035 with emissions falling; housing regulation contractionary throughout with emissions falling; mixed policy largest 2035 emissions cut); 11 pinned delta points so silent changes fail.Tests
116 passed, 1 skipped locally against the cached run at
846081a.🤖 Generated with Claude Code