track_shipment

THE RISK

Low Risk

Why track_shipment needs a policy

Tracking a shipment is a read-only operation that queries shipment status based on a tracking number. No data is created, modified, deleted, or executed. The blast radius of misuse is minimal—an agent could retrieve shipment details for orders it shouldn't have visibility into, but this is a low-severity information disclosure risk rather than a financial, destructive, or execution threat.

From the tool's definition Tool name is 'track_shipment' with description 'Track a shipment by tracking number'. This retrieves shipment status information without modifying, deleting, or executing external operations. It is a straightforward query/lookup operation.

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

POLICY

How to control track_shipment

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 track_shipment:

policy.json

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

track_shipment 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 track_shipment

What does the track_shipment tool do? +

Track a shipment by tracking number. 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 track_shipment? +

Register the Mcp Ap2 MCP server in PolicyLayer and add a rule for track_shipment: 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 track_shipment? +

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

Can I rate-limit track_shipment? +

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

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

track_shipment 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 →