agent-manager
agent-manager is an open-source terminal user interface (TUI) built on tmux for managing multiple AI coding agent sessions. It provides a live status overview of running agents, a group tree for organizing sessions, and the ability to send prompts directly to a specific pane without attaching to it manually. The tool supports popular CLI coding agents including Claude Code, Codex, OpenCode, Grok, Gemini CLI, and Pi. One of its standout features is an in-terminal diff review workflow: users can review changes produced by an agent inside the TUI and send line-level comments back to the agent, streamlining the iterative development process without leaving the terminal. The interface is designed for keyboard-driven workflows and aims to reduce context switching when working with multiple agents in parallel. The project targets macOS, Linux, and Windows via WSL2. As an open-source tool, it is distributed via GitHub and can be installed and run locally, giving developers full control over their agent orchestration environment.
- Category
- AI Agents
- Pricing
- Open Source
Problem solved
agent-manager solves the challenge of managing multiple AI coding agents running in separate tmux panes by providing a unified TUI for live status monitoring, prompt injection, and diff review. It reduces the friction of switching between terminal panes and agent outputs, enabling developers to coordinate parallel coding tasks and review changes efficiently.
Use cases
- Monitor live status of multiple Claude Code, Codex, or Gemini CLI sessions in one tmux view
- Send a prompt directly to a specific agent pane without attaching to it
- Review code diffs in-terminal and send line-level comments back to an agent
- Organize agent sessions into a group tree for parallel task management
- Run on macOS, Linux, or Windows via WSL2 to manage local coding agents
Audience
- Developers
- ML Engineers
- Data Scientists
Pros
- Unified tmux TUI consolidates multiple agent sessions
- Live status and group tree improve situational awareness
- In-terminal diff review with line comments keeps workflow inside the terminal
- Supports multiple popular coding agents (Claude Code, Codex, OpenCode, Grok, Gemini CLI)
- Cross-platform (macOS, Linux, Windows via WSL2)
Cons
- Requires tmux and familiarity with terminal workflows
- May have a learning curve for non-tmux users
- Dependent on external coding agents for actual code generation
- Open-source project with no formal commercial support
Official website: https://github.com/YoanWai/agent-manager
Canonical LambdaBase page: https://www.lambdabase.com/tools/agent-manager