everything-stdio

everything-stdio is an MCP server for Claude Code, Codex, Cursor, Gemini CLI, OpenCode from adithyan-ak/AgentHound. Its token cost is not measured, scanned A, original, Apache-2.0.

A local Model Context Protocol server for testing the protocol's features. Model Context Protocol, or MCP, is a standard way for an AI assistant to use external tools and data.

In plain words
What is it for?
Use it to test MCP clients, integrations, and protocol handling in a local stdio setup.
Why use it?
It gives developers one server for exercising many MCP capabilities instead of building a separate test server for each feature. The input does not specify the individual features it exposes.

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/adithyan-ak/agenthound/claude-everything-stdio
Clone the repo
git clone --depth 1 https://github.com/adithyan-ak/AgentHound

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 everything-stdio

README.md
[![agentmods](https://agentmods.dev/badge/mcp/adithyan-ak/agenthound/claude-everything-stdio.svg)](https://agentmods.dev/mcp/adithyan-ak/agenthound/claude-everything-stdio)
Your own site
<a href="https://agentmods.dev/mcp/adithyan-ak/agenthound/claude-everything-stdio"><img src="https://agentmods.dev/badge/mcp/adithyan-ak/agenthound/claude-everything-stdio.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 original No closer match found in the catalogue.
Security

Grade A, and why

everything-stdio 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 6d 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.

test-infra/host-home/Library/Application Support/Claude/claude_desktop_config.json · 10 lines

What it actually says

{
  "everything-stdio": {
    "command": "npx",
    "args": [
      "--yes",
      "@modelcontextprotocol/[email protected]",
      "stdio"
    ]
  }
}
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. 6d ago First seen · 10 lines scan A b1171cd0954f

Subscribe to this mod's changes

everything-stdio is an MCP server published in the GitHub repository adithyan-ak/AgentHound (382 stars, last pushed 2d ago), licensed Apache-2.0. 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. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.