The MotherDuck remote MCP server now supports write operations. Learn how zero-copy clones, snapshots, and hypertenancy make it safe to let agents build in your data warehouse.

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MotherDuck

MotherDuck's remote MCP server now supports write operations via a new `query_rw` tool, enabling AI agents to INSERT, UPDATE, DELETE, create tables, and modify schemas — not just run SELECT queries. Three safety mechanisms make this practical: zero-copy clones let agents work in isolated database copies, automatic snapshots enable point-in-time rollback, and hypertenancy gives each agent its own isolated compute instance (duckling) to prevent resource contention and cost blowouts. The feature unlocks multi-agent workflows where agents can persist intermediate results, build derived tables, and pass outputs to downstream agents using the database as a coordination layer.

Give Your Agent Write Access

Running Write Access Safely on MotherDuck