Build backlog Rune

Summary

Aggregation rune that queries the entity registry and renders a filtered, sorted, grouped view of work items and bugs. This is the first Phase 2 rune in the plan package — it requires the cross-page pipeline and entity registration (Add Entity Registration to @refrakt-md/plan) to function.

The backlog rune is also the rendering primitive used by the milestone auto-backlog feature (Milestone Auto-Backlog and Checklist Progress).

Attributes

Filter Syntax

Space-separated field:value pairs. Multiple values for the same field act as OR. Different fields act as AND.

{% backlog filter="status:ready priority:high" /%}
{% backlog filter="milestone:v0.5.0" sort="priority" group="status" /%}
{% backlog filter="assignee:bjorn status:in-progress" /%}
{% backlog filter="tags:tint" show="work" /%}

Card Layout

Each entity renders as a compact summary card showing id, status badge, priority badge, complexity dots, title, milestone, and checklist progress (if available).

Acceptance Criteria

• Rune schema in runes/plan/src/tags/backlog.ts with filter/sort/group/show attributes
• Filter parser handles field:value syntax with AND/OR semantics
• aggregate() pipeline hook queries entity registry for work and bug entities
• Results sorted by specified field
• Results grouped into sections when group specified
• Summary card rendering with BEM classes (rf-backlog, rf-backlog__card, etc.)
• Engine config in runes/plan/src/config.ts
• CSS in packages/lumina/styles/runes/backlog.css
• Tests for filter parsing, sorting, grouping, and card rendering
• Type definition in runes/plan/src/types.ts
• Exported from runes/plan/src/index.ts

Dependencies

• Add Entity Registration to @refrakt-md/plan (entity registration) must be complete first
• Uses PackagePipelineHooks.aggregate() from @refrakt-md/types