Eidos

Choose how you want to start

Open the Web Editor without installing anything, use the CLI to create and edit a local file, or choose Eidos Lite for a complete local Space.

Explore Eidos Lite ↓ Open the Web Editor ↗ Open locally with CLI ↓

Primary desktop product · active development

Eidos Lite

Use an ordinary folder as a Space for .eidos files, everyday files, and local version history. Local features need no account; add Eidos Sync only when you want it.

Download Eidos Lite

Choose your operating system and processor architecture. Links always point to the latest stable release.

Eidos Sync is currently an invite-only Private Preview. Join the waitlist; approval adds 5 Promotional Eidos Credits, which you explicitly use from your account to start one month. Join the Sync waitlist →

Release notes and all files ↗

Legacy · kept for existing users

Eidos Desktop Legacy

The original all-in-one Electron app remains available through its historical installers and maintenance line, but it is no longer the recommended starting point for new users or development.

Open the Desktop Legacy release archive →

Local editor · agents · automation

Eidos CLI

The CLI is a standalone local tool. Use it to create an Eidos File and launch the shared Web Editor, or give agents and automation a safe boundary with revisions, exact matching, typed mutations, and validation.

  1. 01 · Install

    Install Eidos CLI

    macOS and Linux 

    curl -fsSL https://download.eidos.space/cli/install.sh | sh

    Windows PowerShell 

    irm https://download.eidos.space/cli/install.ps1 | iex

  2. 02 · Local Web Editor

    Create a file and open it in your browser

    The same commands work on macOS, Linux, and Windows. The server listens only on localhost and can display sibling assets files; content stays local and no account is required.

    Run after installing the CLI 

    eidos create tracker.eidos
eidos serve tracker.eidos --open

  3. 03 · Agent workflow

    Add the Eidos Skill to your coding agent

    The CLI owns the typed transaction boundary. The Skill teaches coding agents with Agent Skills support to use context, apply, validation, and Graft. It installs from the same public tag as the stable CLI—not the moving development branch.

    Choose an agent · global install · Node.js 18+ 

    npx skills add \
  https://github.com/mayneyao/eidos/tree/cli-v0.36.6/skills/eidos \
  --skill eidos -g

    The Skill installs from the public tag that matches the stable CLI release. Start a new task in the selected agent after installation.

  4. 04 · First task

    Begin with a read-only check

    Have the agent load compact context and confirm the file and revision before deciding whether to mutate anything. 

    Use the Eidos skill to inspect ./tracker.eidos.
Show context first and do not mutate yet.

Stable release. The installer resolves the stable release and verifies the download against its SHA256SUMS before replacing the binary.

Read the CLI docs →