List all node types, their attributes and their relationships TO other node-types in the neo4j database
AI agents call get-neo4j-schema to retrieve information from Neo4j MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves database metadata (schema information) without creating, modifying, deleting, or executing operations. It has no side effects and is purely informational, making it a Read operation with low severity since schema disclosure alone poses minimal risk in isolation.
From the tool's definition Tool name 'get-neo4j-schema' and description 'List all node types, their attributes and their relationships' indicate schema inspection/querying with no modification of data.
Attacks that exploit this kind of access
List all node types, their attributes and their relationships TO other node-types in the neo4j database. It is categorised as a Read tool in the Neo4j MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Neo4j MCP Server MCP server in PolicyLayer and add a rule for get-neo4j-schema: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Neo4j MCP Server. Nothing to install.
get-neo4j-schema is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get-neo4j-schema rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for get-neo4j-schema. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
get-neo4j-schema is provided by the Neo4j MCP Server MCP server (rebots-online/mcp-neo4j). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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