@techreport{jakab-dawn-agent-discovery-mdns-00, number = {draft-jakab-dawn-agent-discovery-mdns-00}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-jakab-dawn-agent-discovery-mdns/00/}, author = {LorĂ¡nd Jakab and Frank Brockners}, title = {{Zero-Configuration Agent Discovery}}, pagetotal = 20, year = 2026, month = jul, day = 6, abstract = {Protocols for communication between autonomous software agents typically discover agents through documents retrieved over HTTPS from a well-known URI. This model requires a discovering party to already know an agent's host name or URL, or to consult a centralized catalog. It provides no zero-configuration mechanism for enumerating agents that are present on a local network. This document describes how existing, widely deployed protocols, Multicast DNS (mDNS) and DNS-Based Service Discovery (DNS-SD), can be used to advertise and discover agents on a local link, with no new protocol machinery. It presents a general, protocol-independent two- stage discovery model in which lightweight enumeration over DNS-SD is followed by retrieval of full agent metadata over the agent's native transport. It gives a worked instantiation of that model for the Agent2Agent (A2A) protocol, as an example.}, }