• Member: Uphold DNA; keep bid/ask fresh; deliver exchanges; log outcomes; Fountain contributions at sufficiency.
• Sponsor: Onboard/mentor; remain indefinitely accountable; intervene early; co-design repairs.
• Pair Lead (rotating): Cadence and micro-retros; ensure agreements are specific and measurable.
• Tetrad Coordinator: Use-case agreements; metrics; escalation path.
• Cohort Convenor: Agenda hygiene; resource votes; cross-tetrad synergies; membrane stewardship.
• Governance Council: Co-chairs Mark Nitzberg and Melanie Mullen; oversee first pilots (civil discourse → business salon) and publish learnings.