NIRA REPL MCP for VS Code

io.github.pachote/nira-repl

Secure code execution sandbox for Claude — run Python, JavaScript, and shell commands

client:VS Code transport:stdio runtime:pypi

Install NIRA REPL MCP in VS Code

.vscode/mcp.json

{
  "servers": {
    "nira-repl": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "nira-repl"
      ]
    }
  }
}

Requires agent mode. MCP: Open User Configuration puts the same block in every workspace. VS Code docs