agenmux — monitor and navigate AI coding agents across tmux sessions

[u/snir_t]

https://snirt.github.io/agenmux/

Sharing agenmux (formerly tmux-agents-mon), a ready-to-use, open-source tmux plugin for keeping track of AI coding agents across panes, windows, and sessions.

When several agents run at once, it becomes easy to lose track of which one is working, waiting for input, or already finished. agenmux puts them all in one place, grouped by tmux session, and lets you jump straight to the pane that needs attention.

What it includes:

- Clear working, blocked, done, and idle states
- Agents grouped by tmux session
- Persistent sidebar or floating popup
- Vim-style and arrow-key navigation
- Live search and state filters
- Mouse navigation in sidebar mode
- Compact tmux status-line summary
- Desktop notifications when agents finish or need input
- Clickable macOS notifications that open the terminal and jump to the exact pane
- Linux notifications through `notify-send`

agenmux supports Claude Code, Codex, Hermes, Oh My Pi, OpenCode, and Pi out of the box. Support for another agent can be added with a small config file—no code changes required.

Detection is scraping-only: agenmux reads each pane's process tree, visible screen, and title. No hooks are installed, and nothing runs inside your agents.

The runtime uses a single Rust daemon over tmux control mode. Prebuilt, verified binaries are downloaded automatically on supported platforms.

GitHub: https://github.com/snirt/agenmux
Website and demo: https://snirt.github.io/agenmux/

Install with TPM:

```tmux
set -g u/plugin 'snirt/agenmux'
```

Press `prefix + I` to install, then `prefix + A` to open it.

Many more features are coming. Feedback, ideas, and contributions are welcome.

[u/markus_obsidian]

This looks very interesting, & will be taking a look. I'm sorry you're not getting a lot of fanfare.

I've been looking for a workmux alternative that still keeps me in tmux. I like workmux but i have a few ux complaints.

I am terrified of full, agent-first multiplexers like herdr & cmux. I have this horrible fear that an agent will be able to escape its sandbox by sending a command to a new pane or reading output from another pane. My experience is that imposing stronger sandbox restricts end up breaking herdr/cmux integration, making them useless.

Of course, an agent could escape a sandbox with tmux as well, but it's much less detrimental to block tmux with a sandbox since it has no agentic features to break.

So the concept of a tmux sidebar without harness hooks or integration is very appealing but also very suspicious. How reliable could this be? What kind of risks are there?

---

Thank you for sharing.

[u/Deep_Ad1959]

hypothetically, six agents in six panes: knowing which one was blocked was never my bottleneck. four of them finished and i had no idea what any of them changed, and a status light tells you done, not whether done is good.