AI Content Disclosure for HTML (github.com)

A proposed new HTML attribute, `ai-disclosure`, aims to standardize the way web authors disclose AI involvement in content creation at the element level. Currently, existing methods only allow for page-level disclosures, making it difficult to specify whether individual sections—like a human-written article versus an AI-generated summary—have different origins. This initiative emerges in response to concerns raised by over 40 commenters in the WHATWG community who recognize the importance of individual content transparency, especially as regulations like the EU AI Act, effective August 2026, will mandate machine-readable marking of AI-generated text. The introduction of the `ai-disclosure` attribute is significant for the AI/ML community as it not only addresses transparency but also prepares content creators for upcoming regulatory compliance. By associating the attribute values with existing standards like the IETF AI-Disclosure header and the IPTC Digital Source Type vocabulary, this approach ensures a consistent method for identifying AI involvement, fostering trust and clarity in digital content. The move represents a critical step toward a more accountable and well-defined relationship between AI systems and their users, thereby enhancing the integrity of online information.