mngr

mngr is an open-source, Unix-style command-line tool for creating, managing, and orchestrating AI agents across any compute environment. Think of it as "git for agents": just as git lets you commit, push, pull, and clone versions of code, mngr lets you create, destroy, list, clone, and message agents running locally, in Docker containers, or on remote hosts like Modal. Built on SSH, git, and tmux, mngr requires no managed cloud service and gives you full control over your infrastructure.

• Agent lifecycle management — Use mngr create, destroy, start, stop, list, and clone to manage agents with simple, composable commands.
• Multi-environment support — Run agents locally, in Docker containers, or on Modal sandboxes using the agent@host address syntax.
• Fast startup — Agents launch in under 2 seconds, keeping iteration cycles short.
• Snapshot and fork — Use mngr snapshot to capture the full state of an agent's host, then fork it to create new agents from that checkpoint.
• Data sync — Use mngr push, pull, and pair to move files between your local machine and remote agents, including continuous sync.
• Programmatic messaging — Send messages to agents and retrieve transcripts with mngr message and mngr transcript.
• Security controls — Supports SSH key isolation, network allowlists, CIDR-based traffic restrictions, and full container control.
• Cost transparency — The CLI is free; agents auto-shutdown when idle so you only pay for inference and compute.
• Extensible via plugins — Add new agent types, provider backends, CLI commands, and lifecycle hooks through the plugin system.
• Built-in help — Use mngr ask to get usage answers without leaving the terminal.
• Shell completion — Tab completion for commands, options, and agent names is supported in bash and zsh.