What problem does it solve? It replaces custom Next.js API route backend logic with server-side DaaS runtime extensions, letting you validate, transform, and audit data operations without redeploying code. ## Core Features & Use Cases - Filter Hooks: Run blocking validation and payload transformation before create, update, or delete operations, with the ability to reject invalid writes. - Action Hooks: Run non-blocking async side effects after operations, such as audit logging, notifications, and external webhook calls. - MCP Management: Create, test, activate, clone, and delete extensions through the mcp_daas_extensions tool with top-level parameters. - Use Case: When a new order is created, an action hook automatically writes an entry to an order_status_log collection using elevated permissions while keeping the user in the audit trail. ## Quick Start Ask the AI to create a DaaS filter extension that validates article titles before items are created.