1. citadel
927 stars+2 this week
An open-source operating layer for Claude Code and OpenAI Codex.
penguin-harness alternatives: 12 Claude Code plugins like prism-shadow/penguin-harness
Flowy lists 1,115 other Development plugins like penguin-harness, ranked by shared technologies, then GitHub stars; nothing in this list is paid.
Published · Updated · By Flowy
How they compare
| Plugin | Stars | 7 days | Updated | License | Contains |
|---|---|---|---|---|---|
| penguin-harnessThis page | 2,955 | +139 | Oct 26, 2026 | Apache-2.0 | 35 skills |
| 1citadel | 927 | +2 | Oct 25, 2026 | MIT | 48 skills, 7 agents |
| 2plannotator | 9,701 | +176 | Oct 27, 2026 | Apache-2.0 | 8 skills, 4 commands |
| 3devspace | 5,300 | +15 | Oct 27, 2026 | MIT | 2 skills |
| 4socraticode | 3,358 | +7 | Oct 23, 2026 | AGPL-3.0 | 2 skills, 1 agent, 1 hook, 1 MCP server |
| 5mcp-nixos | 864 | +3 | Oct 26, 2026 | MIT | 3 agents, 2 commands, 1 MCP server |
| 6greenfield-inc-pane | 584 | +12 | Oct 28, 2026 | not available | 39 skills, 4 agents |
| 7claude-dashboard | 583 | +1 | Oct 16, 2026 | MIT | 4 commands, 1 hook |
| 8apm-studio | 437 | +1 | Jun 3, 2026 | MIT | 9 skills |
| 9dev-30 | 320 | +5 | Oct 27, 2026 | Apache-2.0 | 4 skills |
| 10anywhere-agents | 259 | +1 | Oct 26, 2026 | Apache-2.0 | 6 skills, 1 agent, 7 commands |
| 11codearbiter | 149 | 0 | Oct 28, 2026 | AGPL-3.0 | 56 skills, 20 agents, 38 commands |
| 12superloopy | 112 | 0 | Oct 15, 2026 | MIT | 10 skills, 6 agents, 5 hooks |
The 12 closest alternatives
2. plannotator
9,701 stars+176 this week
Plannotator is a local, browser-based review surface for AI coding agents: Claude Code, Codex, Copilot CLI, Gemini CLI, OpenCode, Kiro…
3. devspace
5,300 stars+15 this week
Minimal Coding Agent Harness on MCP for ChatGPT, Claude, Hermes, Grok Bot, OpenClaw
4. socraticode
3,358 stars+7 this week
= 18.17"> "There is only one good, knowledge, and one evil, ignorance." — Socrates Your AI reads code.
5. mcp-nixos
864 stars+3 this week
MCP-NixOS - Model Context Protocol Server for NixOS resources
6. greenfield-inc-pane
584 stars+12 this week
pnpm dlx runpane@latest
7. claude-dashboard
583 stars+1 this week
Comprehensive status line plugin for Claude Code — unified usage monitoring across Claude, Codex, Gemini, Antigravity, and z.ai CLIs, with…
8. apm-studio
437 stars+1 this week
A local GUI for Agent Package Manager packages: import agents, skills, prompts, hooks, and MCP configs, then sync them to Codex, Claude…
9. dev-30
320 stars+5 this week
Mission control for the One Person Studio — run a fleet of AI coding agents in parallel without losing your mind.
10. anywhere-agents
259 stars+1 this week
One config for every agent — Claude Code, Codex, and whatever comes next.
11. codearbiter
149 stars0 this week
Open-source governance and hard gates for AI coding agents across Claude Code, Codex CLI, and Pi.
12. superloopy
112 stars0 this week
Loop engineering for Codex, Claude Code, and Google Antigravity.
Questions about penguin-harness alternatives
What is the best alternative to penguin-harness?
citadel is the first of 12 alternatives to penguin-harness by shared technologies: it has 927 stars (behind penguin-harness), gained 2 stars this week and ships 48 skills against 35 for penguin-harness.
Which penguin-harness alternative has the most skills?
codearbiter has the most, with 56 skills of the 12 alternatives listed. penguin-harness has 35.
Is penguin-harness free?
Yes. penguin-harness is published under the Apache-2.0 license, so it is free to use.