Mistral Vibe is a production-grade terminal-based AI coding agent by Mistral AI. It provides an interactive CLI powered by Textual for multi-turn LLM conversations, file editing, shell execution, and subagent delegation. The system is architected around a core agent loop that orchestrates tool calls with a permission system, session management (resume, rewind, fork), and an event-driven checkpointing mechanism for file state snapshots. It integrates with multiple LLM providers (Mistral, Anthropic, OpenAI, Vertex) via a backend adapter pattern, and supports external integrations through MCP (Model Context Protocol) servers, custom hooks, and a skill system. The codebase heavily employs layered configuration, ports/adapters for audio, notifications, and update checking, and includes an app server for IDE integration via the ACP (Agent Communication Protocol). It also features telemetry via OpenTelemetry and GrowthBook-based experiments. The repository is actively maintained with recent commits, a comprehensive test suite (>1400 tests), and CI/CD pipelines for PyPI releases and PyInstaller binaries.