{
  "gem": {
    "slug": "cairn-vg-2087",
    "name": "Cairn",
    "description": "Append-only SQLite store of typed facts for agents, exposed over MCP, returning a freshness and assurance verdict on every recalled belief.",
    "url": "https://github.com/QuarkOS/Cairn",
    "domain": "github.com",
    "author": "Emilio Schwaiger (@EmilioSchwaiger)",
    "license": "unknown",
    "category": "AI Skills, Agents & MCP",
    "subcategory": "Knowledge MCP",
    "tags": [
      "mcp",
      "agent-memory",
      "sqlite",
      "typed-facts",
      "provenance"
    ],
    "whyGem": "Refuses free-form JSON and in-place edits, so agent memory cannot quietly rot.",
    "sourceType": "x-thread",
    "image": "/api/public/library/og/VG-2087.png",
    "pageUrl": "https://vibing.inc/library/cairn-vg-2087"
  }
}