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Supabase

Python RLS for Agents: Row-Level Security in LangGraph and Multi-Tenant LLM Workflows An agent we shipped last quarter returned a row from the wrong tenant. The agent did what the prompt asked. The database did what the agent asked. The third jurisdiction of every agentic workflow is the database, and Pydantic and TypedDict cannot reach it. Engineering quality Your single Postgres pool will eventually eat your whole startup Small-team ops platforms on Vercel + Supabase work for ten months, then 504s start appearing while Postgres looks healthy. Diagnosis, the connection-bulkhead pattern, and the queue architecture that actually fixes it.