Detect Ai

This connects to the HumanizerAI API to scan text and return an AI detection score from 0 to 100, along with breakdowns for perplexity, burstiness, readability, and a few other metrics. You'd use it before publishing content or submitting work when you need to verify it doesn't trip AI detectors. The skill formats results clearly and interprets scores into ranges like "likely AI-generated" versus "human-written." One thing to note is you'll need your own HumanizerAI API key to make it work. Straightforward for content creators and students who want to check their writing passes as human before it goes out the door.

skills.sh installs: 999
GitHub stars: 55
last updated: Aug 21, 2026

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Install

$ npx -y skills add humanizerai/agent-skills --skill detect-ai --agent claude-code

Installs into .claude/skills of the current project.

Files

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]

SKILL.md on GitHub

Details

Repository: github.com/humanizerai/agent-skills
Category: AI & Agent Building
First seen: Jun 3, 2026

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