Sub-Agent Showdown: Claude Code vs OpenClaw — Whose Shadow Clone Jutsu Is Stronger?

Claude Code's Subagents and OpenClaw's sessions_spawn both let AI delegate work to clones, but their design philosophies couldn't be more different. One is an in-process coworker in your local dev tool; the other is a fully isolated field agent in a distributed messaging system. Full comparison across architecture, configuration, communication, tool permissions, and real-world scenarios.