agent-manager

agent-manager is a free, open-source terminal UI written in Go for managing multiple AI coding agents as tmux sessions on your own machine. Created by Yoan Wai, it runs on macOS, Linux and Windows through WSL2. It uses the coding CLIs you already installed, with their existing login and configuration.

Supported coding agents

As documented for v0.40.0, eleven CLIs are built in: Claude Code, OpenCode, Codex, Grok Build, Gemini CLI, Antigravity CLI, Pi, Command Code, Hermes Agent, Muse Code, Oh My Pi. Launch, resume, MCP registration and status rules ship with the binary. Hermes Agent, Antigravity CLI and Oh My Pi do not support conversation forking. Additional CLI support is handled as a feature request.

Session workflow

Organize sessions by project, inspect live status, send prompts without attaching, revive dead sessions on their saved conversations, and review full-file diffs with line comments sent back to an agent. Sessions can spawn into isolated git worktrees. Model, effort and supported CLI profile choices are available per session.

Mouse and agent communication

Mouse support is available since v0.38.0 and enabled by default. It supports navigation, session focus, row reordering, draggable dividers, text selection and links. A Settings toggle returns native selection to the terminal.

The binary includes an MCP server so agents can spawn other agents, send messages, wait on one another, claim shared tasks, reserve files and operate managed terminals.

License, installation and limits

Apache-2.0 has applied since v0.19.0 on August 4, 2026; earlier releases used MIT. agent-manager has no paid tier. Coding CLI and model usage are billed separately by their vendors. Cost tracking remains unavailable per the maintainer's correction.

Requires tmux 3.1 or newer and git. Installation options include Homebrew, an install script, an AUR package, mise, go install and prebuilt binaries. It runs locally; the coding CLIs connect to their own vendors.