Modern Relay argues agent coordination needs typed graphs, not just Postgres

sarahdrinkwater · x · 2026-07-25

A conversation with Andrew and Ragnor from Modern Relay argues that agents need typed graphs to coordinate long-horizon work.
They frame the system as a composable “company brain” substrate built on open-source infrastructure such as Lance, Arrow, and DataFusion.
The discussion covers why they prefer graphs over Postgres/relational databases, why schemas and type safety matter as guardrails, and how graph structure can enable parallelization via dependency decoupling.
They also explain what Modern Relay and OmniGraph are, including the idea of Branches as “GitHub for agent-written data.”
The talk closes with a two-year prediction that graphs will become central to long-horizon coordination problems, with tension between centralization and decentralization.

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