Weft is a full-stack, AI-powered personal task management application built with React and Cloudflare Workers. It provides a Kanban-style board where users create tasks that can be executed by AI agents (Claude) using the Model Context Protocol (MCP) to interact with external services like Gmail, Google Docs, Google Sheets, and GitHub. The system features a sophisticated approval workflow: sensitive tool calls (e.g., sending email, creating PRs) require human approval with specialized UI components for reviewing diffs, documents, and spreadsheets. It supports scheduled task execution, real-time WebSocket updates, OAuth-based integrations, and a command palette for keyboard-driven navigation. The architecture leverages Cloudflare Durable Objects for stateful board management, Workflows for long-running agent execution, and a sandboxed environment for running untrusted code. The frontend is a single-page React application with a custom design system, while the backend is entirely serverless on Cloudflare's edge network.