task_pages__timeline__interval_membership_count

Identity

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

Program Contract

1. Program schema: timeline_interval_membership_count(reference_event_pair, interval_relation) -> event_count; scene=timeline; scope=interval_membership_count
2. Scene: timeline
3. Scope: one rendered milestone timeline with dated event cards and two highlighted reference events.
4. Supported query_id values: between_reference_events_count, outside_reference_interval_count
5. Answer schema: integer
6. Annotation schema: bbox_set
7. Annotation roles: unordered event-card boxes for every counted event; empty set is valid for zero-count samples.
8. Query arguments: interval_relation=between|outside.
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, logical_composition

Prompt + Trace

1. Prompt bundle: pages_timeline_v1
2. Scene key: milestone_timeline
3. Task key: timeline_milestone_query
4. Prompt query keys: between_reference_events_count, outside_reference_interval_count
5. Trace records selected query_id, interval_relation, event order, dates, reference event ids, 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.