get_stock_position

THE RISK

Low Risk

Why get_stock_position needs a policy

This tool retrieves inventory or stock balance information from an ERP system. It performs a read-only query with no side effects, no data modification, and no capability to alter system state. The low severity reflects that unauthorized access could expose inventory data but cannot cause financial transactions or destructive changes.

From the tool's definition Tool name 'get_stock_position' and description 'Get current stock position / balance in Omie ERP' indicate a retrieval operation. The verb 'get' and phrase 'current...balance' denote querying existing data without modification.

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

POLICY

How to control get_stock_position

PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Ap2, and nothing reaches the server without passing your rules. This is the rule we recommend for get_stock_position:

policy.json

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

get_stock_position 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 Mcp Ap2 — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

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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 →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_stock_position

What does the get_stock_position tool do? +

Get current stock position / balance in Omie ERP. It is categorised as a Read tool in the Mcp Ap2 MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_stock_position? +

Register the Mcp Ap2 MCP server in PolicyLayer and add a rule for get_stock_position: 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 Mcp Ap2. Nothing to install.

What risk level is get_stock_position? +

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

Can I rate-limit get_stock_position? +

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

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

get_stock_position is provided by the Mcp Ap2 MCP server (@codespar/mcp-ap2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Ap2 tool call.

Start from Mcp Ap2, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →