Superargs MCP Server

Provide AI MCP server args during runtime.

Local serverstdio

What is the Superargs MCP server?

Provide AI MCP server args during runtime. That is what the superargs mcp server brings to an AI assistant: the same capability, reachable through the Model Context Protocol rather than a separate app or dashboard.

The short version

Args in the --stdio command are denoted by {{argName}}. For example:

  • Dynamic Arg Injection — Replace placeholders in your MCP server command with actual values during runtime
  • Customizable Tool Name — Rename the arg update tool via --update-args-tool-name to suit your workflow
  • Comprehensive MCP Support — Forwards all MCP requests to the child server, including tools, prompts, resources, messages, and roots
  • Change Notifications — Sends notifications like sendToolListChanged, sendPromptListChanged, and sendResourceUpdated when args are updated, ensuring connected clients are aware of changes

The tools it exposes

The server publishes 1 tool. What each one is for:

  • Args — Args in the --stdio command are denoted by {{argName}}. For example:

Getting it running

The server ships on npm as superargs, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.

What it needs from you

Configuration is passed through the environment: GITHUB_PERSONAL_ACCESS_TOKEN. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.

How it compares

Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Superargs's toolset — Args — is a fair guide to whether it matches your workflow. It is maintained by supercorp-ai; worth a glance at recent repository activity before you build anything load-bearing on it.

This entry was verified against Superargs's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.

Things to watch

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

Available tools

ToolWhat it does
ArgsArgs in the --stdio command are denoted by {{argName}}. For example:

How to install the Superargs MCP server

{
  "mcpServers": {
    "superargs": {
      "command": "npx",
      "args": ["-y", "superargs"],
      "env": {
        "GITHUB_PERSONAL_ACCESS_TOKEN": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

VariableDescriptionRequired
GITHUB_PERSONAL_ACCESS_TOKENCredential the server authenticates with.Yes

Example prompts to try

  • Use Superargs to Args.

Frequently asked questions

Superargs lets you provide arguments (like tokens or file paths) to any MCP server during your interaction with an AI assistant, instead of during initial server setup.