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Chaos Rig MCP Server

@Typewise

リポジトリ

基本情報

カテゴリ

開発者ツール

ライセンス

MIT

作者

Typewise

Chaos Rig MCP Server について

A local MCP server that breaks on demand. Test your client against auth failures, disappearing tools, flaky responses, and token expiry, all from a web UI.

Chaos Rig MCP Server の設定

以下の設定を使って、このサーバーを MCP 対応クライアントに追加してください。

{
  "mcpServers": {
    "mcp-chaos-rig": {
      "command": "npx",
      "args": [
        "mcp-chaos-rig"
      ]
    }
  }
}

Chaos Rig MCP Server のツール

8

returns your message (v2 adds format options)

sums two numbers (v2 accepts an array)

current server time as ISO 8601

random integer in a range

reverses a string

echoes one optional parameter per JSON Schema primitive, to check a client round-trips every type

files a billing dispute, returns a JSON receipt

contacts`, `get-contact-by-id`, `get-contact-by-email`, `search-contacts`, `create-contact`, `update-contact`, `delete-contact`: SQLite CRUD

概要

What is Chaos Rig?

A local MCP server that breaks on demand. Test your client against auth failures, disappearing tools, flaky responses, and token expiry, all from a web UI.

How to use Chaos Rig?

The README includes setup instructions such as npx mcp-chaos-rig.

Key features of Chaos Rig

  • Break authentication: force 401s and 500s mid-session, expire tokens on demand, reject refresh tokens
  • Break tools: disable tools to trigger tools/changed, switch schema versions live
  • Break reliability: add random latency, make tool calls fail at configurable rates
  • registration_endpoint disappears from the well-known metadata
  • POST /oauth/register and POST /register return 404 registration_not_supported

Use cases of Chaos Rig

  • Connect an MCP-compatible client to this repository's service.
  • Review the README-backed setup before enabling it in production.

よくある質問

1

Where is the source code for Chaos Rig?

The source code is linked from the repository URL on this page.

2

Does Chaos Rig include a standard MCP config?

If the README contains a parseable MCP configuration block, it is shown in the Config tab.

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