VaultRoom: A DeFi Risk Agent Where Notion Is the Control Plane

This is a submission for the Notion MCP Challenge What I Built DeFi operators managing lending positions across multiple blockchains face a familiar problem: alerts scattered across Discord bots, risk tracking in spreadsheets, and critical decisions made via Telegram messages. There's no single source of truth, no structured escalation workflow, and no clean way for a human to stay in the loop when an AI agent flags something dangerous. VaultRoom is a multi-chain DeFi risk monitoring agent that turns Notion into a bidirectional control plane. The agent monitors on-chain positions across Cardano and Ethereum, detects anomalies using rule-based checks and Gemini 2.5 Pro analysis, and manages a living Notion workspace — where human operators set thresholds, approve escalations, and receive AI-written daily digests. Every single Notion interaction flows through the remote Notion MCP server via OAuth. Zero @notionhq/client SDK usage. MCP is the protocol layer between the agent and Notion. T