Agent Skills: RETIRED — Use iterative-todo

This skill should be used when the user asks to "create a todo", "add a plan", "plan this work", "track this work", "document this task", "complete a todo", "verify the implementation", "run architect verification", "hand off to the developer", "start the implementation", "update docs for this feature", "what's the next step", "what's the plan status", "resume the todo", "what's blocked", "pick up where we left off", "design this feature", "check business requirements", "review requirements", "review against requirements", "check for requirement conflicts", or mentions managing project todos, plans, and multi-agent workflows. Provides the structured workflow for creating, managing, and linking todo/plan files, and orchestrating agent collaboration through the full design-review-implement-verify-document lifecycle.