DNS-Native AI Agent Naming and Resolution

This document specifies DNS-Native Agent Naming and Resolution (DN- ANR) for AI agents. DN-ANR has three goals: (1) use domain names (FQDNs) as stable Agent Identifiers, (2) resolve Agent Identifiers to verifiable endpoints and supported protocol/version information with a cryptographic integrity chain (DNSSEC preferred), and (3) provide only minimal and stable pointer/index capabilities that can be referenced by upper-layer discovery systems. DN-ANR intentionally does not carry heavy semantic metadata in DNS, and does not define semantic discovery, ranking, or routing decisions.