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🧬 Helix

GitHub release CI E2E Tests Coverage Security

Visual workflow editor for AI agent systems

Helix — from the Greek ἕλιξ, meaning “spiral” — mirrors the architecture of intelligent systems. Like a DNA helix, it represents intertwined layers of AI agents: autonomous, interdependent, evolving.

Screenshot 2025-09-24 at 11 39 13

Create and collaborate on AI workflow diagrams with real-time editing. Built with Elixir/Phoenix and React.

⚠️ Early Development

  • Visual design and planning only — workflows are not executable yet.
  • Workflows are stored in the browser's localStorage (no sync/backups). Clearing browser data or switching devices will lose unsaved workflows. To avoid data loss, export your diagrams before clearing browser data or moving to a new device.
  • Server-side persistence and execution are planned for future releases.

Quick Start

git clone https://github.com/ccarvalho-eng/helix.git
cd helix
mix setup
mix phx.server

Open localhost:4000 and start designing workflows.

Requirements: Elixir 1.17+, Erlang/OTP 26+, Node.js 18+, PostgreSQL 14+ (for development)

What it does

  • Drag and drop nodes to create workflow diagrams
  • Connect nodes to show how agents interact
  • Multiple people can edit the same workflow simultaneously
  • Real-time sync via WebSockets
    • Last-write-wins: concurrent edits may overwrite each other
    • No queuing: edits made while disconnected are lost and not replayed on reconnect
    • No state resync: reconnecting clients do not receive missed changes
    • No granular access control: assume all connected users with the link can edit
    • Recommendation: coordinate edits or duplicate flows to avoid unintended overwrites
  • Sessions are managed by Elixir GenServers
  • Export diagrams as PNG images

Development

mix test && npm test      # run all tests
mix credo --strict        # code quality
npm run test:e2e          # end-to-end tests

Contributing

See our contributing guide for more details.

Documentation

License

Apache 2.0


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