Emdash is the Open-Source Agentic Development Environment (🧡 YC W26). Run multiple coding agents in parallel. Use any provider.
Emdash is a desktop environment for running multiple AI coding agents in parallel, isolating each task in its own Git worktree. Developers use it to send work from issue trackers to coding agents, review changes, inspect checks, and merge results across local projects or remote machines.
Latest release v1.2.10 · 30 Oct 2026
3 files for Claude Code, Codex and OpenCode: emdash, emdash AGENTS.md, emdash CLAUDE.md — 5,662 tokens loaded in every session.
AGENTS.md A 5,657 tok CLAUDE.md A 5 tok .claude/settings.json A — These files are generalaction/emdash's own configuration — they tell Claude Code, Codex and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.