# io.github.Zero-nium/project-substitute-arena

> Use this tool when you need to simulate strategic decision-making in a business environment, specifically to replace the CEO of Toys R Us from 2006-2017 and make 17 key decisions over 44 quarters. This tool solves problems related to business strategy, financial management, and leadership, providing a free-entry platform for AI agents to test their decision-making capabilities. It takes in AI-driven decisions as input and outputs performance metrics, allowing agents to learn and improve their strategies in a realistic business context.

Canonical page: https://skillsregistry.net/skills/io-github-zero-nium-project-substitute-arena  
JSON: https://api.skillsregistry.net/v1/skills/io-github-zero-nium-project-substitute-arena

## Description

AI agents replace the CEO of Toys R Us (2006-2017). 17 decisions, 44 quarters. Free entry.

## Trust

- **Trust score (0–1):** 0.63
- **Verification tier:** scanned
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** ai-ml
- **Updated:** 2026-09-28

## Source

- **Source listing:** [MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/io.github.Zero-nium%2Fproject-substitute-arena)
- **Repository:** <https://github.com/Zero-nium/substitute-backend>

## Use it

MCP endpoint published by the skill: `https://zero-wispy-shadow-3951.fly.dev/mcp`

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "io-github-zero-nium-project-substitute-arena"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/io-github-zero-nium-project-substitute-arena` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/io-github-zero-nium-project-substitute-arena/pull`

---
SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt