The practitioner takes an engagement only after: having no reason to think the relevant ethical requirements, including independence, will be breached; concluding that the people doing the work together have the necessary competence and capabilities; concluding that the preconditions are satisfied; and agreeing with the engaging party a shared understanding of the terms, reporting responsibilities included.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.