# 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: Oct 23, 2026 · Updated: Oct 30, 2026 · Author: Flowy
Canonical: https://www.flowy.sh/alternatives/prism-shadow-penguin-harness

## How they compare

| Plugin | Stars | 7 days | Updated | License | Contains |
| --- | ---: | ---: | ---: | --- | --- |
| [penguin-harness](https://www.flowy.sh/listings/prism-shadow-penguin-harness) | 2,955 | +139 | Oct 30, 2026 | Apache-2.0 | 35 skills |
| [citadel](https://www.flowy.sh/listings/sethgammon-citadel) | 927 | +2 | Oct 25, 2026 | MIT | 48 skills, 7 agents |
| [plannotator](https://www.flowy.sh/alternatives/backnotprop-plannotator) | 9,701 | +176 | Oct 27, 2026 | Apache-2.0 | 8 skills, 4 commands |
| [devspace](https://www.flowy.sh/alternatives/waishnav-devspace) | 5,300 | +15 | Oct 27, 2026 | MIT | 2 skills |
| [socraticode](https://www.flowy.sh/alternatives/giancarloerra-socraticode) | 3,358 | +7 | Oct 23, 2026 | AGPL-3.0 | 2 skills, 1 agent, 1 hook, 1 MCP server |
| [mcp-nixos](https://www.flowy.sh/listings/utensils-mcp-nixos) | 864 | +3 | Oct 26, 2026 | MIT | 3 agents, 2 commands, 1 MCP server |
| [greenfield-inc-pane](https://www.flowy.sh/listings/dcouple-pane) | 584 | +12 | Oct 28, 2026 | – | 39 skills, 4 agents |
| [claude-dashboard](https://www.flowy.sh/listings/uppinote20-claude-dashboard) | 583 | +1 | Oct 16, 2026 | MIT | 4 commands, 1 hook |
| [apm-studio](https://www.flowy.sh/listings/apm-studio-apm-studio) | 437 | +1 | Jun 3, 2026 | MIT | 9 skills |
| [dev-30](https://www.flowy.sh/listings/h0x91b-dev-3-0) | 320 | +5 | Oct 27, 2026 | Apache-2.0 | 4 skills |
| [anywhere-agents](https://www.flowy.sh/listings/yzhao062-anywhere-agents) | 259 | +1 | Oct 26, 2026 | Apache-2.0 | 6 skills, 1 agent, 7 commands |
| [codearbiter](https://www.flowy.sh/listings/arbiterforge-codearbiter) | 149 | 0 | Oct 28, 2026 | AGPL-3.0 | 56 skills, 20 agents, 38 commands |
| [superloopy](https://www.flowy.sh/listings/beefiker-superloopy) | 112 | 0 | Oct 15, 2026 | MIT | 10 skills, 6 agents, 5 hooks |

## The 12 closest alternatives

1. [citadel](https://www.flowy.sh/listings/sethgammon-citadel) (927 stars, +2 this week). An open-source operating layer for Claude Code and OpenAI Codex. [citadel on Flowy](https://www.flowy.sh/listings/sethgammon-citadel)
2. [plannotator](https://www.flowy.sh/listings/backnotprop-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… [plannotator on Flowy](https://www.flowy.sh/listings/backnotprop-plannotator) · [plannotator alternatives](https://www.flowy.sh/alternatives/backnotprop-plannotator)
3. [devspace](https://www.flowy.sh/listings/waishnav-devspace) (5,300 stars, +15 this week). Minimal Coding Agent Harness on MCP for ChatGPT, Claude, Hermes, Grok Bot, OpenClaw. [devspace on Flowy](https://www.flowy.sh/listings/waishnav-devspace) · [devspace alternatives](https://www.flowy.sh/alternatives/waishnav-devspace)
4. [socraticode](https://www.flowy.sh/listings/giancarloerra-socraticode) (3,358 stars, +7 this week). = 18.17"\> "There is only one good, knowledge, and one evil, ignorance." — Socrates Your AI reads code. [socraticode on Flowy](https://www.flowy.sh/listings/giancarloerra-socraticode) · [socraticode alternatives](https://www.flowy.sh/alternatives/giancarloerra-socraticode)
5. [mcp-nixos](https://www.flowy.sh/listings/utensils-mcp-nixos) (864 stars, +3 this week). MCP-NixOS - Model Context Protocol Server for NixOS resources. [mcp-nixos on Flowy](https://www.flowy.sh/listings/utensils-mcp-nixos)
6. [greenfield-inc-pane](https://www.flowy.sh/listings/dcouple-pane) (584 stars, +12 this week). pnpm dlx runpane@latest. [greenfield-inc-pane on Flowy](https://www.flowy.sh/listings/dcouple-pane)
7. [claude-dashboard](https://www.flowy.sh/listings/uppinote20-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… [claude-dashboard on Flowy](https://www.flowy.sh/listings/uppinote20-claude-dashboard)
8. [apm-studio](https://www.flowy.sh/listings/apm-studio-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… [apm-studio on Flowy](https://www.flowy.sh/listings/apm-studio-apm-studio)
9. [dev-30](https://www.flowy.sh/listings/h0x91b-dev-3-0) (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. [dev-30 on Flowy](https://www.flowy.sh/listings/h0x91b-dev-3-0)
10. [anywhere-agents](https://www.flowy.sh/listings/yzhao062-anywhere-agents) (259 stars, +1 this week). One config for every agent — Claude Code, Codex, and whatever comes next. [anywhere-agents on Flowy](https://www.flowy.sh/listings/yzhao062-anywhere-agents)
11. [codearbiter](https://www.flowy.sh/listings/arbiterforge-codearbiter) (149 stars, 0 this week). Open-source governance and hard gates for AI coding agents across Claude Code, Codex CLI, and Pi. [codearbiter on Flowy](https://www.flowy.sh/listings/arbiterforge-codearbiter)
12. [superloopy](https://www.flowy.sh/listings/beefiker-superloopy) (112 stars, 0 this week). Loop engineering for Codex, Claude Code, and Google Antigravity. [superloopy on Flowy](https://www.flowy.sh/listings/beefiker-superloopy)

## 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.

## Related

- [Development plugins on Flowy](https://www.flowy.sh/listings/category/development)
- [Browse all skills](https://www.flowy.sh/skills)
- [penguin-harness on Flowy](https://www.flowy.sh/listings/prism-shadow-penguin-harness)