create_or_update_share_csn

THE RISK

Medium Risk

Why create_or_update_share_csn needs a policy

This tool modifies SAP Business Data Cloud shares through creation or update operations. While reversible (via delete_share or subsequent updates), it affects critical data sharing infrastructure and configurations. The high severity reflects that misconfigured shares could expose sensitive business data or disrupt data access for dependent systems.

From the tool's definition Tool name explicitly states 'create_or_update_share' which involves creating and modifying share configurations. Description confirms the action: 'Create or update a share using CSN format.' These are reversible write operations on data sharing infrastructure.

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

POLICY

How to control create_or_update_share_csn

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_or_update_share_csn": {
      "limits": [
        {
          "counter": "create_or_update_share_csn_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

create_or_update_share_csn stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register SAP Business Data Cloud 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.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More SAP Business Data Cloud MCP Server tools

Destructive delete_share Delete a share and withdraw the shared resources. Write create_or_update_share Create or update a share for data distribution in SAP BDC. Write provision_share End-to-end share provisioning: creates Databricks share, grants to recipient, Write publish_data_product Publish a data product to make it available for consumption. Read validate_share_readiness Validate that a Databricks share is ready for BDC Connect operations. Read generate_csn_template Generate a CSN template from an existing Databricks share.

All 7 SAP Business Data Cloud MCP Server tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about create_or_update_share_csn

What does the create_or_update_share_csn tool do? +

Create or update a share using CSN (Common Semantic Notation) format. It is categorised as a Write tool in the SAP Business Data Cloud MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_or_update_share_csn? +

Register the SAP Business Data Cloud MCP Server MCP server in PolicyLayer and add a rule for create_or_update_share_csn: 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 Business Data Cloud MCP Server. Nothing to install.

What risk level is create_or_update_share_csn? +

create_or_update_share_csn is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_or_update_share_csn? +

Yes. Add a rate_limit block to the create_or_update_share_csn 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 create_or_update_share_csn completely? +

Set action: deny in the PolicyLayer policy for create_or_update_share_csn. 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 create_or_update_share_csn? +

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

Enforce policy on every SAP Business Data Cloud MCP Server tool call.

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

CHECK YOUR STACK →