Knowledge Graph Memory Server

Instructions

Implementation Reference

• optimized_memory_mcp_server/operations/entity_ops.py:84-110 (handler)

  The handler function that executes the logic to delete entities and their associated relations from the SQLite database.

  async def delete_entities(
      self, 
      entity_names: List[str], 
      batch_size: int = 1000
  ) -> None:
      """Remove entities and their relations."""
      async with self.pool.get_connection() as conn:
          async with self.pool.transaction(conn):
              for i in range(0, len(entity_names), batch_size):
                  batch = entity_names[i:i + batch_size]
                  sanitized_names = [sanitize_input(name) for name in batch]
                  
                  placeholders = ','.join(['?' for _ in sanitized_names])
                  await conn.execute(
                      f"""
                      DELETE FROM relations 
                      WHERE from_entity IN ({placeholders})
                      OR to_entity IN ({placeholders})
                      """,
                      sanitized_names * 2
                  )
                  
                  await conn.execute(
                      f"DELETE FROM entities WHERE name IN ({placeholders})",
                      sanitized_names
                  )

• optimized_memory_mcp_server/main.py:181-194 (schema)

  The schema definition for the 'delete_entities' tool, specifying its expected input format.

      name="delete_entities",
      description="Remove entities and their relations",
      inputSchema={
          "type": "object",
          "properties": {
              "entityNames": {
                  "type": "array",
                  "items": {"type": "string"}
              }
          },
          "required": ["entityNames"],
          "additionalProperties": False
      }
  ),