Skill License Fingerprinter

Anti-Piracy for AI Skill Creators

The Skill License Fingerprinter is a specialized security tool for developers and creators selling AI agent skills via third-party platforms (like Gumroad or personal sites). It solves the problem of unauthorized redistribution by embedding unique, redundant identifiers into the SKILL.md file at the time of sale, allowing you to trace any leaked copy back to the original purchaser.

What it does

The system utilizes three distinct fingerprinting channels to ensure traceability even if a buyer attempts to "clean" the file:

• Invisible Zero-Width Encoding: Encodes buyer IDs directly into headings using non-printing characters that survive most copy-pasted transfers.
• Spacing Signatures: Encodes data through subtle variations in sentence spacing (single vs. double spaces) invisible in rendered markdown.
• Frontmatter Metadata: A clear YAML comment for immediate identification.

Why use this skill

Unlike standard watermarking, this skill provides a complete workflow: it generates a personalized LICENSE.md, maintains a secure local ledger of buyers, and includes a matching engine that calculates a confidence score based on how many fingerprint channels survived the leak. It bridges the gap between selling a plain text file and maintaining intellectual property rights.

Output

The skill produces a personalized skill folder ready for delivery to the buyer and generates a draft DMCA notice if a leak is detected and matched to a buyer in your ledger.

Built by Nex AI. More skills and info at nex-ai.be and slopsome.com.