A2A 1.0 emerges as standard agent protocol

The author examines the state of chat systems and protocols for AI agents as of late 2026, analyzing how independent agents communicate, how frameworks handle group chats, and how workspaces incorporate agents alongside human users. While stable protocols like A2A handle cross-vendor task delegation and Slack supports agent-to-agent messaging, agent-native workspaces remain in early beta or invite-only status. The analysis highlights ongoing gaps in cross-vendor turn-taking, idle agent wake-up mechanisms, and unified owner oversight. Open article →