💻emdash
generalaction/emdash · homepage ↗
Emdash is the Open-Source Agentic Development Environment (🧡 YC W26). Run multiple coding agents in parallel. Use any provider.
⭐ Popular: 5k stars, gaining about 50 a week
View on GitHub ↗repo profile
momentum
durability
bus factor = how many people it takes to cover more than half the commits (6 months). 1 is a solo project; higher means the work is spread across a team. top-author share is the single busiest author's slice of those commits.
since we covered it
why it's a big deal
- Lets developers run several coding agents at once without juggling terminals, targeting people who already work across tools like Claude Code, Codex, Cursor, Gemini, and Amp.
- Each agent runs on its own Git branch, so competing solutions to the same problem can be explored in isolation and compared.
- Pulls tickets from Linear, GitHub, Jira, GitLab, and Asana, and lets you review diffs, open pull requests, check CI, and merge from one dashboard.
under the hood
- Desktop application written almost entirely in TypeScript, with a local SQLite database holding state.
- Isolates each agent in its own Git worktree and branch so parallel runs do not collide.
- Local-first design keeps code and conversations on the machine, with optional telemetry and support for SSH and SFTP to remote hosts.
Radar summary, generated from the project's public sources
star history
curve is sampled from GitHub's star history, plus our own daily readings since we covered it; the dashed stretch is before we first covered it, the solid line since. figures at coverage are the numbers we printed then (approx.), current count is live.
understory
Deep in the understory, shipping hard, still flying under the radar.
- output, commits & releases
- clout, star velocity
output = commits & releases; clout = star velocity, both 0 to 100 monthly indices; the gap where output runs above clout is the understory. The understory →
covered in
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Open-source Agentic Development Environment for running parallel coding agents
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Provider-Agnostic Parallel Agent Orchestration
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Orchestrate multiple coding agents in parallel using isolated Git worktrees
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