once for VS Code

io.github.aurumflux20/once-kernel

Run a side effect exactly once under retries, redelivery, and concurrent workers.

client:VS Code transport:stdio runtime:pypi

Install once in VS Code

.vscode/mcp.json

{
  "servers": {
    "once-kernel": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "once-kernel"
      ]
    }
  }
}

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