Phase 05, Plan 01: LLM Judge & Example Selector Summary
Gemini Flash semantic equivalence judge with few-shot prompting and 4-category showcase selector for curated report examples
- Duration: 3 min 21 sec
- Started: 2026-02-20T14:42:35Z
- Completed: 2026-02-20T14:45:56Z
- Tasks: 2
- Files modified: 2
Accomplishments
- LLM judge evaluates semantic equivalence when exact GL account match fails
- Few-shot examples guide YES/NO verdicts (6801 vs 6800 = YES, 6801 vs 4000 = NO)
- Example selector identifies representative cases across 4 categories
- Format function prepares showcase data for Jinja2 HTML templates
Task Commits
Each task was committed atomically:
- Task 1: Create LLM-as-judge module -
32a21881 (feat)
- Task 2: Create example selector module -
501462cd (feat)
Plan metadata: ad29b5f9 (docs: complete plan)
Files Created/Modified
src/evaluation/llm_judge.py - Semantic equivalence judge using Gemini Flash with JUDGE_PROMPT, judge_semantic_equivalence(), batch_judge_mismatches()src/evaluation/example_selector.py - Showcase curation with select_showcase_examples(), format_showcase_for_display(), CATEGORY_DESCRIPTIONS
Decisions Made
- Few-shot prompting: JUDGE_PROMPT includes explicit YES/NO examples (office supplies same category = YES, expense vs revenue = NO)
- Temperature=0: Deterministic responses for consistent semantic equivalence evaluation
- Four categories: best_cases (all correct + agree), worst_cases (high similarity but wrong), edge_cases (3+ different predictions), llm_saves (LLM correct where embeddings failed)
- Category metadata: Each category has title, subtitle, description, icon, and color for rich HTML display
Deviations from Plan
None - plan executed exactly as written.
Issues Encountered
None.
User Setup Required
None - no external service configuration required (uses existing GOOGLE_API_KEY).
Next Phase Readiness
- LLM judge module ready for integration with report generator (Plan 02)
- Example selector provides curated showcase for final HTML report
- Both modules follow existing project patterns (lazy init, error handling)
Self-Check: PASSED
Phase: 05-reporting-llm-judge
Completed: 2026-02-20