Claude Code multi-agent

Crystal

Desktop app for running multiple Claude Code sessions in parallel git worktrees and comparing results.

3,130 stars 196 forksMulti-agent & worktrees Source

Install

From source
git clone https://github.com/stravu/crystal.git

From the README

https://nimbalyst.com/
  Download here

  Crystal Is Now Nimbalyst
  Crystal (formerly a multi-session AI code assistant manager) has been deprecated and replaced by Nimbalyst.
  Deprecated: February 2026.

Migration

- Download Nimbalyst: https://nimbalyst.com/
- Documentation: https://docs.nimbalyst.com/
- GitHub repository: https://github.com/Nimbalyst/nimbalyst

Nimbalyst Features

- AI-native workspace for human + AI collaboration
- AI agents that stream edits directly into open editors in real time
- Multi-editor environment for code, markdown, spreadsheets, diagrams, and visual docs
- Extension-first architecture for custom editor/file-type support
- Local-first file model using open formats like Markdown, JSON, and CSV
- Code-aware agent orchestration for implementation planning and task execution
- Git worktree isolation for safer parallel AI coding sessions
- Rich markdown editing with tables, code blocks, embeds, and formatting tools
- Monaco-based code editing experience for programming workflows
- RevoGrid-powered spreadsheet editing for CSV and tabular workflows
- Excalidraw integration for diagram and whiteboard workflows
- Visual data modeling tools for schema-centric work
- Visual mockup editing for interface ideation and iteration
- Unified editor lifecycle with consistent AI integration across editor types
- Auto-save and file watching for reliable local development workflows
- Project-level workspace management and AI session tracking
- Built on production-grade desktop foundations with Electron

FAQ

- Is Crystal discontinued? Yes. Crystal is deprecated and replaced by Nimbalyst.
- Can I still use Crystal? Yes. You can continue using Crystal, but we recommend moving to Nimbalyst for active updates.
- Where is Nimbalyst? https://nimbalyst.com/

For…
Read the full README on GitHub

Details

Repository
stravu/crystal
Language
TypeScript
License
MIT
Last updated
26 February 2026
Topics
agentic-aiaiai-codinganthropicclaudeclaude-codecodexcursordevelopment-environmentidellm-codingopenai-codex

FAQ

What is Crystal?

Desktop app for running multiple Claude Code sessions in parallel git worktrees and comparing results. It is a multi-agent for Claude Code, from stravu/crystal on GitHub.

How do I install Crystal?

Clone stravu/crystal from GitHub and follow the setup steps in its README.

Is Crystal popular?

stravu/crystal has 3,130 GitHub stars and 196 forks, and is included in 2 curated Claude Code lists. It was last updated on 26 February 2026.

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