emdash
Emdash is the Open-Source Agentic Development Environment (🧡 YC W26). Run multiple coding agents in parallel. Use any provider.
Install / Use
npx skills add generalaction/emdashInstalls into whichever agent you are using.
CLAUDE.md
Claude Code project instructions
Quality Score
Category
AI & Machine LearningSupported Platforms
Our assessment of emdash
emdash scores 86/100 on our quality scale, 525th of 965 AI & Machine Learning skills we index.
Its CLAUDE.md is 4.6 KB long, split into 7 sections with 1 code example: a solid amount of guidance for an agent.
With 6,198 GitHub stars, it is one of the more widely adopted skills in the catalogue.
Maintenance, license and trust
- The repository was last updated 3 days ago, so emdash is actively maintained.
- Our last check on 2026-10-18 found the source still online.
- It is released under the Apache-2.0 license, a permissive license that allows use, modification and commercial use with attribution.
- Its trust signals score 100/100, with no cautions. These come from repository metadata, not a code audit — read the skill file before letting an agent act on it.
Safety scan
No issues foundOur scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands. An AI review of the same text found nothing harmful.
AI review by kimi-k2.7-code on 2026-09-24. Automated pattern scan on 2026-09-24. It catches known dangerous patterns, not every risk — read a skill before letting an agent act on it.
emdash compared with similar skills
All 4 of these similar skills score higher than emdash; compare them before choosing.
| Skill | Score | Stars | Updated | Format |
|---|---|---|---|---|
| emdash (this skill)by generalaction | 86 | 6.2k | 3d ago | CLAUDE.md |
| claude-memby thedotmack | 100 | 113.5k | today | CLAUDE.md |
| taste-skillby Leonxlnx | 100 | 110.6k | today | CLAUDE.md |
| Agent-Reachby Panniantong | 100 | 109.2k | today | CLAUDE.md |
| Understand-Anythingby Egonex-AI | 100 | 90.9k | 10d ago | CLAUDE.md |
Frequently asked questions
- How do I install emdash?
- Run
npx skills add generalaction/emdash. The install tabs above show the steps for each supported agent. - Which AI agents does emdash work with?
- It is written for Claude Code, as a CLAUDE.md file. Other agents that read the same format can often use it too.
- Is emdash safe to use?
- Our scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands. An AI review of the same text found nothing harmful. It is Apache-2.0-licensed and scores 100/100 on trust signals. Skills are instructions an agent will follow, so read the file before installing it and do not approve commands you do not understand.
- Is emdash still maintained?
- The repository was last updated 3 days ago, so emdash is actively maintained.
Skill content
View source on GitHubDownload · Docs · Releases · Discord · Contributing
<br />
Emdash is a desktop app for running AI coding agents in parallel. Each task runs in its own Git worktree, so you can explore multiple fixes or features at once, review the diffs, and merge what works.
It works with local projects and remote machines over SSH. Bring the CLI agents you already use: Claude Code, Codex, OpenCode, Amp, and more.
<img alt="Emdash product screenshot" src="https://emdash.sh/media/blog/public-v1-beta/v1beta.jpg" />What You Can Do
- Run multiple coding agents at once without juggling terminals.
- Keep every agent isolated in its own Git worktree and branch.
- Send issues and tickets from Linear, GitHub, Jira, GitLab, Asana, Featurebase, Monday.com, Forgejo, or Plain into an agent.
- Review diffs, create pull requests, inspect CI checks, and merge from one place.
- Work locally or on your own remote machines over SSH/SFTP.
Installation
| Platform | Install |
| --- | --- |
| macOS | brew install --cask emdash · Apple Silicon · Intel |
| Windows | Installer · Portable |
| Linux | AppImage · Debian package |
See the latest release for all desktop builds.
Agents
Emdash detects installed provider CLIs automatically. It supports agents like Claude Code, Codex, Cursor, OpenCode, Amp, Devin, Qwen Code, Droid, and GitHub Copilot.
See Providers for the full list, setup commands, and provider-specific behavior.
Remote Projects
Connect to remote machines with SSH/SFTP and run the same parallel workflow on remote codebases. Emdash supports SSH agent, key, and password authentication, with credentials stored in your OS keychain.
See Remote Projects and Bring Your Own Infrastructure for setup details.
Privacy
Emdash is local-first. App state is stored in a local SQLite database, and Emdash does not send your code or chats to Emdash servers.
Agent CLIs may send code, prompts, and context to their own providers. Their data handling depends on the provider you choose.
Telemetry is optional and can be disabled in Settings or by launching with:
TELEMETRY_ENABLED=false
See Telemetry for details.
Contributing
Contributions are welcome. Read the Contributing Guide, open an issue, or join the Discord.
License
Licensed under the Apache-2.0 license.
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Languages
Trust signals
From repository metadata: license, adoption, age and documentation. Not a code audit — see the Safety scan above for what the skill file itself contains.