Policy and procedures prevent clear-text private or secret keys, components or shares from crossing insecure channels: no dictation, voicemail, fax, e-mail or other electronic conveyance, no conveyance outside tamper-evident authenticable packaging, and no writing of values into startup instructions, onto or inside devices, or into procedure manuals.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.