Calyx: A native macOS terminal app built on Ghostty for running and supervising coding agents

by yuuichieguchi · MCP Server · ★ 347

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

How to install Calyx

brew install --cask calyx
git clone --recursive https://github.com/yuuichieguchi/Calyx.git

Taken from the project's README on GitHub.

Security audit verdict: SAFE · quality 69/100

None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours.

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

agent-orchestrationagentic-aiai-agentsclaude-codecodexdeveloper-toolsghosttymacosmcpopencode

Quick Facts

Stars347
Forks23
LanguageSwift
CategoryMCP Server
LicenseMIT
Quality Score69/100
Last Updated2026-10-23
Created2026-03-08
Platformsclaude-code, codex, mcp
Est. Tokens~18k

About Calyx

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.

Compatible Skills

These tools work well together with Calyx for enhanced workflows:

  • zentty — semantic(0.56)+complementary+rare_topics+same_lang+similar_pop+shared_platform (74%)
  • termio — semantic(0.43)+complementary+rare_topics+same_lang+similar_pop+shared_platform (70%)
  • muxy — semantic(0.38)+complementary+rare_topics+same_lang+similar_pop+shared_platform (68%)
  • factoryfloor — semantic(0.28)+complementary+rare_topics+same_lang+similar_pop+shared_platform (64%)
  • cmux — semantic(0.46)+complementary+rare_topics+same_lang+shared_platform (61%)

Calyx alternative? Top 6 similar tools

Looking for a Calyx alternative? If you're comparing Calyx with other mcp server tools, these 6 projects are the closest alternatives on Agent Skills Hub — ranked by topic overlap, star count, and community traction.

  • termdock-issues by termdock · ⭐ 160

    Termdock is an AI terminal for macOS and Windows. Run Claude Code, Codex, Antigravity CLI (agy), OpenCode and

  • kooky by iAmCorey · ⭐ 653

    A minimal modern terminal for AI coding experience — Sidebar workspaces; horizontal / vertical split panes; on

  • zentty by dedene · ⭐ 325

    A native macOS terminal for agent-driven development, built on Ghostty.

  • herminal by hoangperry · ⭐ 205

    Local-first native macOS terminal with Vietnamese IME support and coding-agent observability

  • ouijit by ouijit · ⭐ 178

    Git worktree-based task manager with integrated terminals for CLI coding agents

  • tty7 by l0ng-ai · ⭐ 1.4k

    The terminal that outlives its window. Shells survive quitting the app, agents can drive other agents, and rem

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. 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:

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