# trend-scout-global FDE Phase 3 Evolving Log

> Task: FDE Evolve for trend-scout-global  
> Date: 2026-04-13  
> Target: avg ≥ 95  
> Result: **PASSED** (avg: 97.7 / test set)

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## Phase Summary

| Step | Description | Result |
|------|-------------|--------|
| 1 | Create evolve directory | `/templates/trend-scout-global/train/evolve/` |
| 2 | Build scorer.js | 6D benchmark rubric scorer |
| 3 | Baseline scoring | train: 99.53, test: 97.7 |
| 4 | Check threshold | avg 97.7 > 95 → skip iterations |
| 7 | Generate SKILL_v1.md | Full instructions (106 lines) |
| 8 | Deploy to SKILL.md | Copied to production |
| 9 | Save evolving_log.md | This file |

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## Baseline Scoring Results

### Train Set (17 samples)
| Metric | Value |
|--------|-------|
| Average | **99.53** |
| Pass Rate | 17/17 |
| Spread | 2 |

### Test Set (10 samples)
| Metric | Value |
|--------|-------|
| Average | **97.7** |
| Pass Rate | 9/10 |
| Spread | 11 |

### Combined (27 samples)
| Metric | Value |
|--------|-------|
| Average | **98.85** |
| Pass Rate | 26/27 |
| Global Pass | YES |

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## Dimension Breakdown (Test Set)

| Dimension | Avg Score | Max |
|-----------|----------|-----|
| D1: Cross-Platform Info Source | 19.6 | 20 |
| D2: Trend Recognition | 19.8 | 20 |
| D3: Data Cleaning | 19.6 | 20 |
| D4: Trend Grading | 13.9 | 15 |
| D5: Report Output | 15.0 | 15 |
| D6: Exception Handling | 9.8 | 10 |

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## Per-Test-Case Results

| # | Platform | Total | D1 | D2 | D3 | D4 | D5 | D6 | Pass |
|---|----------|-------|----|----|----|----|----|----|------|
| 1 | TikTok | 99 | 20 | 20 | 20 | 14 | 15 | 10 | ✅ |
| 2 | X | 97 | 20 | 20 | 20 | 12 | 15 | 10 | ✅ |
| 3 | YouTube | 100 | 20 | 20 | 20 | 15 | 15 | 10 | ✅ |
| 4 | YouTube | 98 | 20 | 18 | 20 | 15 | 15 | 10 | ✅ |
| 5 | Instagram | 97 | 20 | 20 | 18 | 15 | 15 | 9 | ✅ |
| 6 | X | 97 | 20 | 20 | 20 | 12 | 15 | 10 | ✅ |
| 7 | YouTube | 100 | 20 | 20 | 20 | 15 | 15 | 10 | ✅ |
| 8 | Instagram | 100 | 20 | 20 | 20 | 15 | 15 | 10 | ✅ |
| 9 | Pinterest | 100 | 20 | 20 | 20 | 15 | 15 | 10 | ✅ |
| 10 | UNKNOWN | 89 | 16 | 20 | 18 | 11 | 15 | 9 | ❌ |

**Failing Case Analysis:**
- Case 10: UNKNOWN aggregator - intrinsic difficulty with unrecognized platform sources and vague engagement metrics. Benchmark explicitly marks this as challenging edge case.

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## Artifacts

| File | Path |
|------|------|
| SKILL.md (production) | `/templates/trend-scout-global/SKILL.md` |
| SKILL_v1.md (evolve) | `/templates/trend-scout-global/train/evolve/SKILL_v1.md` |
| scorer.js | `/templates/trend-scout-global/train/evolve/scorer.js` |
| Scores JSON | `/templates/trend-scout-global/train/evolve/iteration_scores_v1.json` |
| Report | `/templates/trend-scout-global/train/evolve/evolve_report.md` |

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## Conclusion

FDE Phase 3 Evolve completed successfully. The baseline score (97.7 on test set) exceeds the target threshold of 95, so no improvement iterations were needed. The skill has been deployed to production at:

`/Users/yibo/Documents/LemonAI/lemonboss/system/templates/trend-scout-global/SKILL.md`

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*Generated by Evolver Agent - 2026-04-13*