Execute Cypher queries on the Neo4j database. Supports all types of Cypher queries (READ, CREATE, UPDATE, DELETE). Returns query results in a structured format. Parameters can be passed to prevent injection attacks.
create_node
Create a new node in the graph database. Specify node labels and properties. Returns the created node with its internal ID. Supports all Neo4j data types for properties.
create_relationship
Create a relationship between two existing nodes. Define relationship type and direction. Add properties to relationships. Requires node IDs for source and target nodes.