Agent Runtime Surface

Changelog

May 29, 2026 — Live trip endpoint and demos page

trip.agentruntimesurface.com is now publicly available with the trip-app running live.

Includes:

  • the ARS surface at /ars for agents
  • a parallel web app at /web for humans
  • a demos page on the canonical site at /demos

April 26, 2026 — Initial public definition

AgentRuntimeSurface.com launches. The site defines Agent Runtime Surface as an application primitive for agent-facing runtime contracts.

Includes:

  • a working trip-app demo running in an agentic loop with Claude
  • the application vs capability distinction
  • positioning against adjacent patterns (MCP, CLI, REST, AG-UI, A2UI)
  • the three modes (Semantic UI, Capability, Discoverability)
  • what the application provides
  • the no-version-negotiation principle

The articles published prior to launch trace the discovery: