ai-agent

penguin-harness

Name: penguin-harness
Author: Prism-Shadow

🐧 Unified and Stable RSI Platform

2,549 stars+94★ this week281 forksTypeScriptUpdated 10/15/2026100% free · open source

What it does

A TypeScript‑based multi‑agent platform that lets you define, run, and iterate AI‑driven development pipelines automatically.

When to use it

•You want to prototype a full‑stack product where multiple AI agents coordinate (e.g., design → code → test).
•You need a transparent, version‑controlled way to let AI generate and manage code without manual copy‑pasting.
•You already have a Node.js/TypeScript stack and want to plug in AI orchestration without building your own framework.

Ready-to-paste prompt

npx ts-node src/cli.ts run -c my-harness.ts --goal "Build a Next.js landing page with dark mode and a contact form, fully unit‑tested"

Heads up: The harness requires Node.js >=18 and a valid OpenAI API key; the process will fail at startup if `OPENAI_API_KEY` is missing or the Node version is lower than 18.

Saves to your device

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

🔑 Needs an API key

Works after you add credentials — the setup agent will ask you for them.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/eacdd0aa-82e7-47af-bad4-b39f9dedaf30 && curl -fsSL https://workflowstacks.com/api/skills/eacdd0aa-82e7-47af-bad4-b39f9dedaf30/claude-skill -o ~/.claude/skills/eacdd0aa-82e7-47af-bad4-b39f9dedaf30/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

What's inside — free to inspect

No purchase needed

Read the entire source before you build — unlike paid marketplaces that hide it behind a buy button.

top-level files

folders

66.2M

source size

Apache-2.0

license

Key files

package.json

README.md

README.zh.md

tsconfig.base.json

tsconfig.json

File tree

.agents/

.github/

assets/

changelog/

docker/

examples/

packages/

plugins/

scripts/

tests/

.claude

.dockerignore

.env.example

.gitattributes

.gitignore

.oxlintrc.json

.prettierignore

.prettierrc.json

CHANGELOG.md

CHANGELOG.zh.md

Dockerfile

install.cmd

install.ps1

install.sh

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

🔑 Needs an API key

Works after you add credentials — the setup agent will ask you for them.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/eacdd0aa-82e7-47af-bad4-b39f9dedaf30 && curl -fsSL https://workflowstacks.com/api/skills/eacdd0aa-82e7-47af-bad4-b39f9dedaf30/claude-skill -o ~/.claude/skills/eacdd0aa-82e7-47af-bad4-b39f9dedaf30/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

Quick Actions

Details

Creator

Prism-Shadow

Language

TypeScript