Humanizer Plugin Uses Wikipedia AI Detection Guide to Alter Claude Output

WikiProject AI Cleanup, a volunteer group of Wikipedia editors, published a formal guide in August 2025 identifying 24 common language and formatting patterns that indicate AI-generated writing. This development led to new tools and processes for detecting and addressing AI-written content on Wikipedia and beyond.

The group has applied their guide by tagging more than 500 Wikipedia articles for review as potentially AI-generated. These actions are part of ongoing efforts to maintain content standards and transparency on the platform.

In response to the publication of the guide, tech entrepreneur Siqi Chen released an open-source plugin called Humanizer for Anthropic’s Claude Code AI assistant. The plugin incorporates the 24 patterns from the Wikipedia guide, instructing the AI to avoid writing in ways that resemble AI-generated text.

The Humanizer plugin is implemented as a Markdown-formatted skill file. This file appends structured instructions to Claude Code prompts, which the system interprets with greater precision than standard prompts. The plugin specifically directs Claude to avoid certain types of language, such as promotional terms, vague attributions, and collaborative phrases like “I hope this helps!”—all of which are flagged in the Wikipedia guide.

What the numbers show

• WikiProject AI Cleanup published its list of 24 patterns in August 2025
• Over 500 Wikipedia articles have been tagged for review as potentially AI-generated
• The Humanizer plugin reached more than 1,600 stars on GitHub shortly after release

According to published information, the Humanizer plugin became available on GitHub and quickly attracted attention from users, accumulating over 1,600 stars by the Monday following its release. This indicates a notable level of interest in tools that help AI systems produce more human-like text.

The plugin is designed to update automatically when the Wikipedia AI-spotting guide is revised. This feature aims to keep the plugin aligned with the latest community standards for identifying AI-generated writing on Wikipedia.

By directly referencing the Wikipedia list, the Humanizer plugin provides a procedural method for Claude Code to reduce the likelihood of generating text that matches known AI patterns. This approach reflects a technical response to the growing use of AI in online content creation.

WikiProject AI Cleanup continues to monitor Wikipedia articles and update its guidance as new patterns of AI-generated writing are identified. The ongoing collaboration between community editors and developers highlights the evolving landscape of content moderation and AI tool development.

* This article is based on publicly available information at the time of writing.