Task and audience framing
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The same scorecard through time
Progress accelerated after 2023, but no common-core dimension has crossed into field-wide deliverability.
The rubric is fixed at the August 2026 ideal. Dates mark changes in public evidence, not annual averages. Exact cells are editorial synthesis, not normalized benchmark scores.
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Each lane repeats its dates so mobile readers do not need to remember a distant header.
Data, semantics, and provenance
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Visual construction fidelity
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Visual interpretation and reasoning
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Integrity critique and uncertainty
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Iterative steering and repair
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Interaction, responsiveness, and accessibility
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Reader and decision outcomes
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Production efficiency, governance, and maintenance
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The substrate became programmable.
Declarative grammars, constraints, learned generation, and natural-language specifications made parts of construction inspectable. Evidence remained example-led.
Understanding and LLM generation became repeatable.
Real-chart question answering and multi-stage LLM pipelines crossed into benchmarked capability, while outcome validation stayed absent.
Systems became steerable and executable.
Mixed initiative, render feedback, database execution, local edits, and coding harnesses moved several bounded workflows to usable maturity.
The frontier broadened sideways.
Professional, multilingual, multi-chart, document, state, replay, and judge-reliability tests expanded scope without closing the outcome and lifecycle gaps.