POSTFACT — Resolve Ambiguous Side Effects Before Retry for VS Code

io.github.gsterlingpress/postfact

Resolve whether an uncertain side-effecting action completed before software retries it.

client:VS Code transport:streamable-http tools:1

Install POSTFACT — Resolve Ambiguous Side Effects Before Retry in VS Code

.vscode/mcp.json

{
  "servers": {
    "postfact": {
      "type": "http",
      "url": "https://postfact-api-production.up.railway.app/mcp"
    }
  }
}

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