How-To: Terminal
A sourced use case from @sudoingX on keeping many AI agent sessions running in parallel without context bleeding, using tmux as a practical isolation layer.
This guide summarizes and adapts an original post by @sudoingX.
Original source: https://x.com/sudoingX/status/2050612561817813405?s=20
The original use case describes running many Hermes agent sessions in parallel, often across one terminal environment with many tabs. Each session handles different tasks — research, coding, drafting, and benchmarking.
The problem is that agent contexts bleed into each other. One window accidentally gets focus, you type into the wrong pane, the wrong agent responds — chaos. Worse, processes in one session can crash into another, terminal output from a long-running benchmark floods your research session, and when one session hangs it blocks your entire workflow.
tmux is the separation layer.
tmux (Terminal Multiplexer) lets you create named terminal sessions that live independently of any terminal window. You attach to a session from any terminal, detach (leaving it running in the background), and reattach later. Each session is a completely isolated environment.
Think of it as "screens" for the modern era. No more fragile terminal windows that die when your SSH drops. No more lost long-running processes. No more context bleeding.
The core insight: name each tmux session after the project or purpose. This is your separation layer — not tabs, not windows, not workspaces. Sessions.
The original post outlines a practical naming convention for tmux sessions: <purpose> — short, single-word, lowercase.
agent — Primary Hermes agent session (always running)
bench_nemotron — Nemotron model benchmarking
coding_qwen — Qwen agent coding session
content_drafts — Content creation and drafting
hermes_dev — Hermes development work
main — General-purpose / default session
monitor — System monitoring and logs
research_models — Model research and evaluation
server — Server management / deployments
telegram_gw — Telegram gateway processes
Here's the essential tmux workflow — the commands you'll use daily:
# Create a new detached session
tmux new -s agent
# Create with a working directory
tmux new -s bench_nemotron -c ~/projects/benchmarks
# Create with initial command already running
tmux new -s monitor -d -f htop
# Attach to an existing session
tmux attach -t agent
# Switch to it without detaching current (multi-attach)**
tmux switch -t coding_qwen
# Detach (leave running)**
Ctrl+B D
# Kill a session
tmux kill -t content_drafts
# List all active sessions **
tmux ls
# Check session details **
tmux display -p "Session: #S Windows: #W"
# Rename a session
tmux rename -t main old-main
# Start server only (headless mode) **
tmux new-s -d -s server -c /var/www
The biggest risk in multi-agent workflows is not performance — it's context bleeding. When you're running multiple agent sessions in parallel, the isolation layer between them is the difference between a clean workflow and an unpredictable mess.
Pro tip (from the original use case): Use tmux ls as a daily dashboard. A quick scan prevents wasted time hunting for the right session and reduces mistakes from typing into the wrong agent window.
Add this to your ~/.tmux.conf for a better default experience:
# Use vim-style pane navigation **
bind h select-pane -L
bind l select-pane -R
bind j select-pane -D
bind k select-pane -U
# Split panes with + (easier than v/h) **
bind + split-window -v
bind - split-pane -h
# Show session names in the status line **
set -g status-format '#S'
# Allow mouse (scroll, resize) **
set -g mouse on
# Set paste buffer from clipboard **
set -g copy-driver tmux
tmux is the cheapest, simplest, most reliable way to keep agent contexts from bleeding into each other. It costs nothing, requires zero configuration beyond your first session, and works the same on macOS, Linux, WSL, and any SSH connection.
Start naming sessions after projects. List them. Keep them running. Detach. Reattach. This separation layer works because sessions are genuinely isolated from each other.