Crystal AI Agent
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.
Crystal is an open-source ai agent by stravu, written mainly in TypeScript, with 3,131 GitHub stars and the MIT license. Its code was last updated Feb 26, 2026.
Scan summary: scanned Nov 5, 2026 at commit 1e18e0b. Seen able to run shell commands, connect to the internet. Scan policy
What Crystal can touch
- Seen in this scan, either in the code or while it ran.Run shell commandsFound in the code by our scan
- Our checks did not find this. The tool may still do it.Run dynamic codeNot seen in this scan
- Our checks did not find this. The tool may still do it.Read or write filesNot seen in this scan
- Our checks did not find this. The tool may still do it.Read environment and secretsNot seen in this scan
- Our checks did not find this. The tool may still do it.Control a web browserNot seen in this scan
- Our checks did not find this. The tool may still do it.Connect to databasesNot seen in this scan
- Our checks did not find this. The tool may still do it.Read or send messagesNot seen in this scan
- Our checks did not find this. The tool may still do it.Touch money or tradingNot seen in this scan
- Seen in this scan, either in the code or while it ran.Connect to the internetFound in the code by our scan
"Not seen" means our checks did not find it, and the tool may still do it. Covers commit 1e18e0b, Nov 5, 2026. See the scan policy.
Before you install Crystal
AgenticMart scanned Crystal on Nov 5, 2026 with automated checks for hidden code, known-malicious packages, leaked secrets and vulnerable dependencies. The result covers one commit under our scan policy, so review what access you give it and check any advisories shown here.
What it can access
- An AI agent decides its own next steps and calls whatever tools you give it, so its risk depends on the access you grant.
- Based on its description and topics, it likely needs to use a code-hosting token (GitHub/GitLab).
Before you install
- Use a fine-grained token limited to the repos it needs.
- Pin the version you reviewed instead of always installing the latest release.
- Read the tool list or scripts before the first run, and keep approval prompts on for actions that write, send or delete.
- Maintained by stravu on GitHub, 3,131 stars and 196 forks. Popularity is not proof of safety.
- Last code change: Feb 26, 2026.
- Open-source license: MIT.
Crystal is an open-source ai agent by stravu, written mainly in TypeScript. (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.
At a glance
- Stars
- 3.1k
- Forks
- 196
- Language
- TypeScript
- License
- MIT
- Created
- Jun 2025
- Last update
- Feb 26, 2026
- Type
- AI Agent
- Price
- Free
Topics
Questions about Crystal
What is 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.
Who maintains Crystal?
Crystal is maintained by stravu on GitHub (stravu/crystal). AgenticMart lists it from public repository data.
Is Crystal safe to use?
AgenticMart scanned Crystal on Nov 5, 2026 with automated checks for hidden code, known-malicious packages, leaked secrets and vulnerable dependencies. The result covers one commit under our scan policy, so review what access you give it and check any advisories shown here.
What license does Crystal use?
It is published under the MIT license.
Crystal alternatives
View more →Similar ai agents in Coding Agents, ranked by GitHub stars. Compare licence, recent activity and scan status before you choose.
| Name | Stars | Licence | Last updated | Scan |
|---|---|---|---|---|
| Crystal (this page) stravu | 3.1k | MIT | Feb 26, 2026 | Scanned, no flagged issues |
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