AI Preferences T. R. Zehta Internet-Draft Creative Commons Intended status: Informational 6 August 2026 Expires: 7 February 2027 AIPREF Vocabulary Parameters draft-zehta-aipref-parameters-00 Abstract This document defines how parameters can be added to AI Preferences. About This Document This note is to be removed before publishing as an RFC. The latest revision of this draft can be found at https://TimidRobot.github.io/ietf-aipref-parameters/draft-zehta- parameters.html. Status information for this document may be found at https://datatracker.ietf.org/doc/draft-zehta-aipref-parameters/. Discussion of this document takes place on the AI Preferences Working Group mailing list (mailto:ai-control@ietf.org), which is archived at https://mailarchive.ietf.org/arch/browse/ai-control/. Subscribe at https://www.ietf.org/mailman/listinfo/ai-control/. Source for this draft and an issue tracker can be found at https://github.com/TimidRobot/ietf-aipref-parameters. Status of This Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at https://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on 7 February 2027. Zehta Expires 7 February 2027 [Page 1] Internet-Draft AIPREF Vocabulary Parameters August 2026 Copyright Notice Copyright (c) 2026 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/ license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Revised BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Revised BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Conventions and Definitions . . . . . . . . . . . . . . . . . 2 3. Parameters . . . . . . . . . . . . . . . . . . . . . . . . . 2 3.1. URI-refernces . . . . . . . . . . . . . . . . . . . . . . 3 3.2. Examples . . . . . . . . . . . . . . . . . . . . . . . . 3 4. Security Considerations . . . . . . . . . . . . . . . . . . . 3 5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 3 6. References . . . . . . . . . . . . . . . . . . . . . . . . . 3 6.1. Normative References . . . . . . . . . . . . . . . . . . 3 6.2. Informative References . . . . . . . . . . . . . . . . . 4 Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 4 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 4 1. Introduction This document defines how parameters can be added to AI Preferences [VOCAB]. 2. Conventions and Definitions The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all capitals, as shown here. 3. Parameters As noted in Section 6 of [VOCAB]: The format relies on the Dictionary type defined in Section 3.2 of [FIELDS]. Zehta Expires 7 February 2027 [Page 2] Internet-Draft AIPREF Vocabulary Parameters August 2026 The AI Preferences can be extended with parameters. The parameter syntax is defined in (Section 3.1.2 of [FIELDS]): Parameters are an ordered map of key-value pairs that are associated with an Item (Section 3.3) [...]. The keys are unique within the scope of the Parameters they occur within, and the values are bare items (i.e., they themselves cannot be parameterized; see Section 3.3). 3.1. URI-refernces If the value of a parameter contains a URI-reference (Section 4.1 of [URI]) and its value is not a valid URI-reference, the parameter MUST be ignored. If its value is a relative reference (Section 4.2 of [URI]), it MUST be resolved (Section 5 of [URI]) before being used. 3.2. Examples Generic example: ai-train=n;foo=bar Assuming a content holder wants to highlight the presense of a tip jar: ai-train=y;tipjar=/tipjar Example of categories from [DISPLAY] converted to parameters: ai-train=n,search=y;display-text=y;max-text-length=160 4. Security Considerations See [VOCAB]. 5. IANA Considerations This document has no IANA actions. 6. References 6.1. Normative References [FIELDS] Nottingham, M. and P. Kamp, "Structured Field Values for HTTP", RFC 9651, DOI 10.17487/RFC9651, September 2024, . Zehta Expires 7 February 2027 [Page 3] Internet-Draft AIPREF Vocabulary Parameters August 2026 [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997, . [RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174, May 2017, . [URI] Berners-Lee, T., Fielding, R., and L. Masinter, "Uniform Resource Identifier (URI): Generic Syntax", STD 66, RFC 3986, DOI 10.17487/RFC3986, January 2005, . [VOCAB] Keller, P. and M. Thomson, Ed., "A Vocabulary For Expressing AI Usage Preferences", Work in Progress, Internet-Draft, draft-ietf-aipref-vocab-06, August 2026, . 6.2. Informative References [DISPLAY] Madhavan, K., Canel, F., Gimbel, J., and S. Cooper, "A Vocabulary for Controlling Usage of Content Collected by Search and AI Crawlers", Work in Progress, Internet-Draft, draft-madhavan-aipref-displaybasedpref-02, 25 March 2026, . Acknowledgments The following individuals made significant contributions to this document: * Sara Lovell Author's Address Timid Robot Zehta Creative Commons Email: timid@creativecommons.org Zehta Expires 7 February 2027 [Page 4]