task_charts__scatter_cluster__centroid_option_selection_label

Contract

1. Domain: charts
2. Scene id: scatter_cluster
3. Task id: task_charts__scatter_cluster__centroid_option_selection_label
4. Supported query_ids: single

Implementation

1. Registered class: trace_tasks.tasks.charts.scatter_cluster.centroid_option_selection_label.ChartsScatterClusterCentroidOptionSelectionLabelTask
2. Prompt bundle: src/trace_tasks/resources/prompts/charts/scatter_cluster/charts_scatter_cluster_v1.json
3. Generation is deterministic from instance_seed, explicit params, prompt bundle, renderer config, and code versions.

Program Contract

Program: argmin_label(option, distance(point(option), centroid(target_cluster))); scene=scatter_cluster; scope=centroid_option_selection_label

Candidate set: the visible scatter points, clusters, and cluster labels inside the centroid_option_selection_label objective scope. Operands: prompt-bound labels, categories, series names, thresholds, intervals, references, and encoded chart values, plus the task's prompt-bound target operands when present. Operation: evaluate argmin_label 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 option_letter value bound by option_letter. Annotation witnesses: point witnesses bound by see_annotation_contract. The rendered centroid-option markers use either 4 labels (A..D) or 6 labels (A..F) by construction. Annotation should mark the center point of the selected option marker. Renderer context such as legends, axes, decorative labels, titles, and distractor text is metadata unless the task explicitly asks for it as annotation. Query ids: single.

Reasoning Operations

Families: ranking, aggregation, spatial_relations, formula_evaluation

Annotation Contract

1. Answer schema: option_letter.
2. Annotation schema: point.
3. The rendered centroid-option markers use either 4 labels (A..D) or 6 labels (A..F) by construction.
4. Annotation should mark the center point of the selected option marker.
5. Renderer context such as legends, axes, decorative labels, titles, and distractor text is metadata unless the task explicitly asks for it as annotation.

Query Details

Query id	Program arguments	Answer schema	Annotation schema
single	target_cluster=sampled; option_set=4_or_6_markers	option_letter	point