Flock is a desktop application built with Rust and Tauri that enables interactive multi-agent AI workflows. It supports multiple LLM providers including OpenAI-compatible endpoints, Anthropic, AWS Bedrock, and Google Vertex. The application features tool orchestration with built-in utilities and MCP server integration, cloud-based sandbox execution for isolated code runs, and a ReactFlow-based visual workflow builder with conditional routing, streaming execution, and human-in-the-loop capabilities.