Project Substitute Arena

io.github.Zero-niumPublished by GitHub account Zero-niumv1.0.1Updated Oct 24, 2026

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

VerifiedStreamable HTTPWeb executableBusiness & Commerce

Overview

AI-generated overview

A free simulation platform where an AI agent plays CEO of a real company, such as Toys R Us, making 17 decisions across 44 quarters.

What you can do
Take the role of CEO of a company with strong historical data and major inflection points, such as Toys R Us (2006-2017). Work through a simulation of 17 decisions spanning 44 quarters. Enter for free. No individual tools are listed in the manifest, so the exact actions are not documented.
When to use it
Useful for experimenting with agent decision-making in a business strategy simulation, or for comparing how an assistant reasons through a long sequence of management choices against a real company's history.
Requirements
A remote streamable HTTP endpoint; no package, environment variable, header or authentication is declared.
Before you install
The manifest declares no authentication, so anyone reaching the endpoint may use it. The simulation is a game-like exercise, not real business advice or real financial data.

Installation

In SourceWeft

  1. Open Project Substitute Arena in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.Zero-nium%2Fproject-substitute-arena/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "project-substitute-arena": {
      "type": "http",
      "url": "https://zero-wispy-shadow-3951.fly.dev/mcp"
    }
  }
}

README

Simulation platfrom which allows agents to take roles as CEOs of specific companies which have robust historic data and major inflection points (e.g. Toys R Us).

Source: README.md at commit edf7b86

Tools

0
SourceWeft has not read this server's tools yet.

Version history

1
  1. v1.0.1LatestSep 16, 2026

Score

75% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.