Show HN: Seshions – Orchestrate multi-agent coding agents from one terminal

I run 3-5 AI coding agents in parallel (Claude Code, Codex, Gemini) and the bottleneck was never the agents, it was managing them. Switching panes, losing track of which agent had which role, re-typing the same setup every time.

Seshions is a terminal UI that gives you one dashboard to launch, route prompts to, and monitor parallel coding agents via tmux. What makes it different from other tmux session managers:

- Blueprints: define a multi-agent team once (planner, builder, reviewer, etc.) and launch the whole group in one action

- Orchestration: dispatch a prompt to a single role, or broadcast to every agent in a group — from one composer

- Works across tools: Claude Code, Codex, Gemini CLI, OpenCode, or any custom shell command

- One command: npx seshions@latest

Demo + repo: https://github.com/danhergir/seshions

Built with Bun + TypeScript. I would love to get feedback on the UX and what workflows you'd want supported.