task_charts__histogram__interval_mass

Contract

1. Domain: charts
2. Scene id: histogram
3. Source implementation scene: charts/histogram
4. Query ids: single
5. Semantic query details are recorded in query_id and trace params.

Implementation

1. Registered class: trace_tasks.tasks.charts.histogram.interval_mass.ChartsDistributionHistogramIntervalMassTask
2. Prompt lookup domain/scene: charts/histogram
3. Generation is deterministic from instance_seed, explicit params, prompt bundle, renderer config, and code versions.
4. Answers and annotation are produced from the same metadata execution trace.

Annotation Contract

1. Answer schema: integer_value.
2. Annotation schema: bbox_set.
3. Annotation marks the histogram bars included in the requested inside interval total.
4. Renderer context such as axes, decorative labels, titles, and distractor text is metadata unless the task explicitly asks for it as annotation.

Program Contract

Program: sum(count(bin) for bin where bin is inside query_interval); output=integer_value; annotation=bbox_set(included_bins); scene=histogram; scope=interval_mass

Candidate set: the visible histogram bins and axis/value labels inside the interval_mass 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 sum 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 integer_value value bound by integer_value. Annotation witnesses: bbox_set witnesses bound by bbox_set(included_bins). Annotation marks the histogram bars included in the requested inside interval total. Renderer context such as axes, decorative labels, titles, and distractor text is metadata unless the task explicitly asks for it as annotation. Query ids: single.

Reasoning Operations

Families: aggregation

Query Details

Query id	Program signature	Answer schema	Annotation schema
single	numeric.interval_mass(relation=inside)	integer_value	bbox_set