Tool reference · Knowledge graph & temporal facts
memory_graph_stats
Reports the size and health of the knowledge graph: node and edge counts by type, orphans, communities and the most important nodes.
local stdio server read-only
When to use
- You want a quick health check of the graph after indexing or a reflection run.
- You want to see which concepts the memory considers most important.
- You suspect many disconnected (orphan) nodes.
Parameters
This tool takes no parameters.
Example
Arguments
{}Result shape
{
"total_nodes": 2140,
"total_edges": 5872,
"nodes_by_type": {
"concept": 1320,
"technology": 210,
"rule": 95
},
"edges_by_type": {
"mentioned_with": 3100,
"uses": 640
},
"avg_connectivity": 5.49,
"orphan_nodes": 37,
"top_nodes": [
{
"name": "postgresql",
"type": "technology",
"importance": 0.91,
"mention_count": 214
}
],
"communities": 18
}Values are illustrative; the keys follow the server's handler. MCP clients receive the result as JSON text content.
Server description
The description the server sends to your agent in tools/list, captured from the v14.7.0 source:
Knowledge graph statistics: nodes, edges, communities, top concepts, health metrics.