task_charts__violin__support_width_extremum_label

Public Contract

1. Domain: charts
2. Scene: violin
3. Source file: src/trace_tasks/tasks/charts/violin/support_width_extremum_label.py
4. Prompt assets: src/trace_tasks/resources/prompts/charts/violin/charts_violin_v1.json
5. Supported sampled query_id: widest_support, narrowest_support

Program Contract

Program: arg_extreme(label, support_span(distribution(label)), direction={widest,narrowest}); output=string_label; annotation=bbox(selected_violin); scene=violin; scope=support_width_extremum_label

Candidate set: the visible violin glyphs, summary markers, and group labels inside the support_width_extremum_label objective scope. Operands: prompt-bound labels, categories, series names, thresholds, intervals, references, and encoded chart values, plus the active query id's comparator, direction, target role, or extremum focus when present. Operation: evaluate arg_extreme over the candidate set using the filters, comparisons, aggregations, rankings, projections, or counterfactual edits named in the program expression; generation enforces a unique final answer. Output binding: answer is the unspecified value bound by string_label. Annotation witnesses: unspecified witnesses bound by bbox(selected_violin). The Annotation Contract below defines the prompt-facing witnesses. Query ids: widest_support, narrowest_support.

Reasoning Operations

Families: ranking, formula_evaluation

Contract Notes

This task uses the current source layout. The public task file owns support-width direction selection, answer binding, annotation binding, prompt branch selection, and task-specific trace fields; scene-local shared code only provides violin sampling, rendering, prompt, and annotation primitives.

Query Details

Query id	Program signature	Answer schema	Annotation schema
widest_support	argmax(label, support_span(distribution(label)))	string_label	bbox
narrowest_support	argmin(label, support_span(distribution(label)))	string_label	bbox