Drives dependency-ordered child work through the native workflow tool, one run per phase with retry/amend/send recovery. Use when the user asks for mass-ulw, a DAG of tasks, or fan-out work where some tasks must wait…

Agent skill published as a SKILL.md in code-yeongyu/oh-my-openagent (folder packages/omo-senpi/skills/mass-ulw). Install it with one command using the open skills CLI, or copy the folder into ~/.claude/skills/.