Get inventory/stock for a SKU across warehouses
AI agents call get_inventory to retrieve information from Mcp Ap2 without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries inventory data across warehouses without creating, modifying, deleting, or executing operations. It is a simple read operation that retrieves information about stock levels. Even in the context of a payment protocol server (AP2), this particular tool has no financial, destructive, or executable implications—it only provides visibility into warehouse inventory.
From the tool's definition Tool name is 'get_inventory' and description states 'Get inventory/stock for a SKU across warehouses' — the verb 'Get' and lack of modification language clearly indicate data retrieval with no side effects.
Documented attack patterns abuse exactly the kind of access get_inventory gives an agent:
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_inventory:
{
"version": "1",
"default": "deny",
"tools": {
"get_inventory": {}
}
}get_inventory is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get inventory/stock for a SKU across warehouses. It is categorised as a Read tool in the Mcp Ap2 MCP Server, which means it retrieves data without modifying state.
Register the Mcp Ap2 MCP server in PolicyLayer and add a rule for get_inventory: 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.
get_inventory 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_inventory 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_inventory. 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_inventory 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.
Start from Mcp Ap2, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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1300 Mcp Ap2 tools catalogued and risk-classified — across an index of 43,000+ MCP servers.