amux is an open-source agent harness and session multiplexer developed by Mixpeek. Built in Rust, it is designed to manage, isolate, and orchestrate terminal-based AI coding sessions across multiple concurrent execution lanes and development environments. Operating directly from the command line, amux allows developers to launch and monitor persistent agent workflows. It handles session states, manages local execution boundaries, inspects session freshness, and coordinates interactions across local shell environments or containerized runtimes. Unlike standalone coding assistants that execute directly within a single shell prompt, amux functions as an orchestrator layer (similar to tmux for agents). It is designed to track agent sessions, supervise resource utilization like disk space, and prevent silent execution failures across concurrent AI tasks. amux is open-source under a public repository on GitHub. It is actively maintained with continuous integration covering Rust test suites, linting, and Docker-based containerized deployments.
Tags: agent harness, ai agent, cli, coding agent, OpenSource, terminal