No red flags found in any of the 11 categories — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →
by yuuichieguchi · MCP Server · ★ 302
Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h
🔒 Is Calyx safe to install? View the security audit →
Calyx Run more coding agents without babysitting more terminals. Calyx is a native macOS terminal for running and supervising coding agents (Claude Code, Codex, OpenCode, Hermes, Grok, and pi...) in parallel. It keeps every agent visible and controllable with one approval inbox, live status, persistent sessions, agent-readable command history, and inline diff review -- without replacing the terminal workflow you already use. Documentation · Latest release · MIT license Demo Three Claude Code agents run in parallel while Calyx keeps approvals and command output in one control surface (36s): https://github.com/user-attachments/assets/a04e1161-e296-4791-9b7c-3ef84d990089 Install Homebrew Manual download Download from the latest release. Unzip it and move to . Calyx requires macOS 26 Tahoe or later. Direct downloads update through Sparkle; Homebrew installations update with . Why Calyx See which agent needs you The Agents Sidebar shows every connected agent as working, blocked, idle, or done. Unread badges and click-to-focus navigation replace the loop of checking terminal tabs one by one. Approve tool calls from one inbox Claude Code and Codex permission
| Stars | 302 |
| Forks | 21 |
| Language | Swift |
| Category | MCP Server |
| License | MIT |
| Quality Score | 68.7143081352071/100 |
| Open Issues | 1 |
| Last Updated | 2026-09-08 |
| Created | 2026-03-08 |
| Platforms | claude-code, codex, mcp |
| Est. Tokens | ~18k |
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Calyx is A native macOS terminal app built on Ghostty for running and supervising coding agents. It is categorized as a MCP Server with 302 GitHub stars.
Calyx is primarily written in Swift. It covers topics such as agent-orchestration, ai-agents, claude-code.
You can find installation instructions and usage details in the Calyx GitHub repository at github.com/yuuichieguchi/Calyx. The project has 302 stars and 21 forks, indicating an active community.
Calyx is released under the MIT license, making it free to use and modify according to the license terms.
The top alternatives to Calyx on Agent Skills Hub include herminal, takt, agent-deck. Each offers a different approach to the same problem space — compare them side-by-side by stars, quality score, and community activity.
Grades come from a rule-based scan built on the SlowMist agent-security taxonomy, covering 11 red-flag categories including credential harvesting, data exfiltration, and curl | sh installers. It is a first-layer scan, not a manual audit — we say so rather than overstate it.
The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.
Sources & who's responsible: