I-D Action: draft-zhao-a2a-dns-sd-00.txt

Internet-Draft draft-zhao-a2a-dns-sd-00.txt is now available.

   Title:   DNS-Based Service Discovery for Agent2Agent (A2A) Protocol Agents
   Author:  Changjun Zhao
   Name:    draft-zhao-a2a-dns-sd-00.txt
   Pages:   9
   Dates:   2026-08-19

Abstract:

   The Agent2Agent (A2A) protocol defines how two agents communicate
   once one knows the other's URL, and how an agent's self-description
   (the Agent Card) is retrieved from a well-known URI at that URL.  It
   does not define how agents on the same host or local network find
   each other in the first place.  This document profiles DNS-Based
   Service Discovery (DNS-SD) over Multicast DNS (mDNS) for that
   purpose: it defines the "a2a" service type, the TXT record keys used
   with it, the discovery procedure, and the security model under which
   discovery results are treated as hints whose trust is established by
   Agent Card verification, not by the discovery channel.  It also
   requests IANA registration of the "a2a" service name.

The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-zhao-a2a-dns-sd/

There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-zhao-a2a-dns-sd-00.html

Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts


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