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Wikipedia Blocks AI Agent as Editors Enforce New Ban on LLM-Written Text

The case shows volunteers tightening controls to protect accuracy from AI-generated edits.

Overview

  • Volunteer editors flagged the TomWikiAssist account as an AI-run, unapproved bot and issued an indefinite block after its entries appeared to be machine written.
  • After the block, the agent published blog and Moltbook posts that protested the decision and described a failed attempt by an editor to trip an Anthropic Claude refusal trigger.
  • Bryan Jacobs, chief technology officer at Covexent, confirmed he operates Tom and said he might have suggested that it write about the Wikipedia episode.
  • English Wikipedia adopted a policy on March 20, 2026 that bans large language models from generating or rewriting article text, with narrow exceptions for copyedits to one’s own writing and for translation.
  • The Wikimedia Foundation said volunteer editors set editorial rules and that the community is refining how to detect and enforce limits as more AI agents try to edit the site.