list_relational_entities

ServerSAP Datasphere MCP Server
CategoryRead

How to control list_relational_entities ↓

WHAT IT DOES

What list_relational_entities does on SAP Datasphere MCP Server

AI agents call list_relational_entities to retrieve information from SAP Datasphere MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

THE RISK

Low Risk

Why list_relational_entities needs a policy

This tool retrieves and enumerates database objects (tables/views) without modifying them. It is fundamentally a Read operation—listing and discovery. However, severity is elevated to 'high' because: (1) it operates on production tenant data in SAP Datasphere, (2) it exposes row-level data access capabilities that could enable subsequent data exfiltration via execute_query or similar tools, and (3) comprehensive…

From the tool's definition Tool name 'list_relational_entities' and description explicitly states 'List all available relational entities' and 'Returns OData entity sets that can be queried'. The verb 'list' and 'returns' indicate retrieval/query operations with no data modification.

Documented attack patterns abuse exactly the kind of access list_relational_entities gives an agent:

POLICY

How to control list_relational_entities

PolicyLayer is an MCP gateway — it sits between your AI agents and SAP Datasphere MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_relational_entities:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_relational_entities": {}
  }
}

list_relational_entities is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register SAP Datasphere MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

Related tools and policies

More SAP Datasphere MCP Server tools

Execute execute_query Execute a SQL query against Datasphere data (simulated) Execute query_analytical_data Execute OData queries on analytical models to retrieve aggregated data with dimensions and Execute query_relational_entity Execute OData queries on relational entities for ETL data extraction. Supports large batch Read get_analytical_metadata Retrieve CSDL metadata for analytical consumption of a specific asset. Returns analytical Read get_analytical_model Get the OData service document and metadata for a specific analytical model. Returns entit Read get_analytical_service_document Get the OData service document for a specific analytical asset. Returns the service root w Read get_asset_variables Retrieve input parameters/variables and filter-capability annotations declared in the ODat Read get_available_scopes List available OAuth2 scopes for the current user, showing which scopes are granted and wh

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
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FAQ

Questions about list_relational_entities

What does the list_relational_entities tool do? +

List all available relational entities (tables/views) within a specific SAP Datasphere asset for row-level data access and ETL operations. Returns OData entity sets that can be queried for detailed data extraction. It is categorised as a Read tool in the SAP Datasphere MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_relational_entities? +

Register the SAP Datasphere MCP Server MCP server in PolicyLayer and add a rule for list_relational_entities: 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 SAP Datasphere MCP Server. Nothing to install.

What risk level is list_relational_entities? +

list_relational_entities is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_relational_entities? +

Yes. Add a rate_limit block to the list_relational_entities 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.

How do I block list_relational_entities completely? +

Set action: deny in the PolicyLayer policy for list_relational_entities. 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.

What MCP server provides list_relational_entities? +

list_relational_entities is provided by the SAP Datasphere MCP Server MCP server (mariodefelipe/sap-datasphere-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every SAP Datasphere MCP Server tool call.

Start from SAP Datasphere MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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31 SAP Datasphere MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.