task_pages__timeline__date_threshold_event_count

Identity

1. Domain: pages
2. Scene id: timeline
3. Source scene: timeline
4. Task id: task_pages__timeline__date_threshold_event_count

Program Contract

1. Program schema: timeline_date_threshold_event_count(threshold_date, side) -> event_count; scene=timeline; scope=date_threshold_event_count
2. Scene: timeline
3. Scope: one rendered milestone timeline with dated event cards and one prompt-specified threshold date.
4. Supported query_id values: before_threshold_date_count, after_threshold_date_count
5. Answer schema: integer
6. Annotation schema: bbox_set
7. Annotation roles: unordered event-card boxes for every counted event card.
8. Query arguments: side=before|after; counted cards must be strictly before or strictly after the prompt date.
9. Render arguments: month/year, event count, scene variant, style variant, accent color, render dimensions, and post-render noise.

Reasoning Operations

Families: filtering, counting, comparison

Prompt + Trace

1. Prompt bundle: pages_timeline_v1
2. Scene key: milestone_timeline
3. Task key: timeline_milestone_query
4. Prompt query keys: before_threshold_date_count, after_threshold_date_count
5. Trace records selected query_id, threshold relation, threshold date, event order, dates, answer event ids, event-card bboxes, style metadata, and projected annotation.
6. Generation is deterministic from instance_seed; answer and annotation come from the finalized render metadata.