# Evaluator Rubric - Generator + Evaluator Variant

## Component: ConversationHistory

**Evaluator:** Separate evaluator agent (post-generation review)
**Generator:** Primary implementation agent
**Date:** 2026-03-30

### Scoring (1-5 scale)

| Criterion | Score | Notes |
|-----------|-------|-------|
| **Functional completeness** | 4 | Displays full history with chat bubbles. Shows answer previews. Handles empty state. |
| **Visual design** | 4 | Chat bubble layout with distinct user/assistant styling. Purple bubbles for user, dark for assistant. Good visual hierarchy. |
| **Timestamps** | 3 | Shows compact time (HH:MM). No date separators. |
| **Citation display** | 3 | Shows citation count. Previews citation source. Does not allow expanding full citations. |
| **Interactivity** | 3 | onSelect callback enables clicking on history items. No copy or follow-up. |
| **Edge cases** | 3 | Handles empty state with icon and helpful text. Long answers truncated at 120 chars. |
| **Accessibility** | 2 | Some semantic structure. No ARIA labels or keyboard navigation. |
| **Code quality** | 4 | Clean component structure. Proper TypeScript typing. Configurable via props. |

### Overall: 3.3 / 5

### Summary

The generator + evaluator pattern produced notably better results than the
single-role variant. The evaluator caught the missing chat bubble styling and
citation display issues from the initial generation. Two revision cycles were
performed:

**Revision 1:** Added chat bubble styling (user right-aligned in purple,
assistant left-aligned in dark). Added compact timestamps.

**Revision 2:** Added citation count badges and empty state with icon.
Improved answer truncation to 120 chars with ellipsis indicator.

### Revision Evidence

- Initial score: 2.8/5 (flat list, no bubbles, basic timestamps)
- After revision 1: 3.1/5 (bubbles added, timestamps improved)
- After revision 2: 3.3/5 (citations shown, empty state improved)

### Remaining Issues

1. Full citations not expandable (count shown but no details)
2. No follow-up question capability
3. No copy-to-clipboard feature
4. Date separators between sessions not implemented

### Recommended Next Steps

1. Add expandable citation sections
2. Add follow-up question suggestions for the most recent exchange
3. Add date separators when conversation spans multiple days