crystal

(Crystal is now Nimbalyst) Run multiple Codex and Claude Code AI sessions in parallel git worktrees. Test, compare approaches & manage AI-assisted development workflows in one desktop app.

3,106
Stars
196
Forks
TypeScript
Language
8/23/2026
Added
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⚠️ Third-Party Software Notice

This skill is third-party open-source software developed and hosted independently on GitHub. SkillTip is an informational directory and does not control or maintain the underlying repository. Any security checks displayed are automated and limited in scope. Review the source code before installing.

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Installation

Add to your Claude Code skills directory:

# Add to your Claude Code skills
git clone https://github.com/stravu/crystal

Getting Started

Guides for using skills like crystal.

Security Report

Verified

Last scanned: —

{
  "status": "PASSED",
  "issues": []
}

README.md

Crystal Is Now Nimbalyst

Crystal (formerly a multi-session AI code assistant manager) has been deprecated and replaced by Nimbalyst.

Deprecated: February 2026.

Migration

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 downloads, documentation, and updates, go to https://nimbalyst.com/.

Frequently Asked Questions

What is crystal?

crystal is an open-source ai agents skill for AI coding assistants such as Claude Code, Codex CLI, and ChatGPT, built by stravu. (Crystal is now Nimbalyst) Run multiple Codex and Claude Code AI sessions in parallel git worktrees. Test, compare approaches & manage AI-assisted development workflows in one desktop app. It has 3,106 GitHub stars.

Is crystal safe to use?

crystal returned warnings in SkillsLLM's automated security scan. It has no critical vulnerabilities, but review the flagged issues in the Security Report section before adding it to your workflow.

How do I install crystal?

Clone the repository with "git clone https://github.com/stravu/crystal" and add it to your Claude Code skills directory (see the Installation section above).

What programming language is crystal written in?

crystal is primarily written in TypeScript. It is open-source under stravu on GitHub, so you can review or fork the full source.

Are there alternatives to crystal?

Yes. SkillsLLM lists many other AI Agents skills you can browse and compare side by side. Open the AI Agents category from the badge at the top of this page, or use the Related Skills and comparison links further down to weigh crystal against similar tools.

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