Detect ai

Skill humanizerai/agent-skills/skills/detect-ai

HumanizerAI Agent Skills for Claude Code and Codex - AI detection and text humanization

Install

npx -y skills add humanizerai/agent-skills --skill detect-ai

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

What its author says it does

Copied from the file, not written here

Analyze text to detect if it was written by AI. Returns a score from 0-100 with detailed metrics. Use when checking content before publishing or submitting.

SKILL.md

1.9 KB, as published. Nobody here has run it

Detect AI Content

Analyze text to determine if it was written by AI using the HumanizerAI API.

How It Works

When the user invokes /detect-ai, you should:

Extract the text from $ARGUMENTS
Call the HumanizerAI API to analyze the text
Present the results in a clear, actionable format

API Call

Make a POST request to https://humanizerai.com/api/v1/detect:

Authorization: Bearer $HUMANIZERAI_API_KEY
Content-Type: application/json

{
  "text": "<user's text>"
}

API Response Format

The API returns JSON like this:

{
  "score": {
    "overall": 82,
    "perplexity": 96,
    "burstiness": 15,
    "readability": 23,
    "satPercent": 3,
    "simplicity": 35,
    "ngramScore": 8,
    "averageSentenceLength": 21
  },
  "wordCount": 82,
  "sentenceCount": 4,
  "verdict": "ai"
}

IMPORTANT: The main AI score is score.overall (not score directly). This is the score to display to the user.

Present Results Like This

## AI Detection Results

**Score:** [score.overall]/100 ([verdict])
**Words Analyzed:** [wordCount]

### Metrics
- Perplexity: [score.perplexity]
- Burstiness: [score.burstiness]
- Readability: [score.readability]
- N-gram Score: [score.ngramScore]

### Recommendation
[Based on score.overall, suggest whether to humanize]

Score Interpretation (use score.overall)

0-20: Human-written content
21-40: Likely human, minor AI patterns
41-60: Mixed signals, could be either
61-80: Likely AI-generated
81-100: Highly likely AI-generated

Error Handling

If the API call fails:

Check if HUMANIZERAI_API_KEY is set
Suggest the user get an API key at https://humanizerai.com
Provide the error message for debugging