test-server

test-server is an MCP server for Claude Code, Codex, Cursor, Gemini CLI, OpenCode from anthropics/claude-code-base-action. Its token cost is not measured, scanned A, a copy of test-server, MIT.

A configured MCP server named test-server, started with Bun, a JavaScript runtime. MCP is a way for an agent to call external tools or services.

In plain words
What is it for?
Use it as a configured test MCP endpoint, but consult its implementation to know which concrete operations it provides.
Why use it?
The information only identifies how the server is configured; it does not describe what the server can do.

MCP server for Claude CodeCodexCursorGemini CLIOpenCode

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add mcp/anthropics/claude-code-base-action/mcp-test-test-server
Clone the repo
git clone --depth 1 https://github.com/anthropics/claude-code-base-action

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for test-server

README.md
[![agentmods](https://agentmods.dev/badge/mcp/anthropics/claude-code-base-action/mcp-test-test-server.svg)](https://agentmods.dev/mcp/anthropics/claude-code-base-action/mcp-test-test-server)
Your own site
<a href="https://agentmods.dev/mcp/anthropics/claude-code-base-action/mcp-test-test-server"><img src="https://agentmods.dev/badge/mcp/anthropics/claude-code-base-action/mcp-test-test-server.svg" alt="Measured on agentmods" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod in the catalogue.
Security

Grade A, and why

test-server scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to test-server — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

test/mcp-test/.mcp.json · 10 lines

What it actually says

{
  "test-server": {
    "type": "stdio",
    "command": "bun",
    "args": [
      "simple-mcp-server.ts"
    ],
    "env": {}
  }
}
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 10 lines scan A 5af472d15f78

Subscribe to this mod's changes

test-server is an MCP server published in the GitHub repository anthropics/claude-code-base-action (970 stars, last pushed today), licensed MIT. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. It is 100% identical to test-server, differing in 0 lines, and is treated as a copy.