Select a delivery address. MUST be called before get_restaurants or add_to_basket. Sets the shipping address for the cart.
AI agents use select_address to create or update resources in Food402 — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Food402 environment.
This tool creates or modifies data (the selected delivery address in the cart) in a reversible manner. While it doesn't delete data or execute arbitrary code, it does alter cart/order state that affects subsequent operations. The severity is medium because misuse could redirect orders to wrong addresses, causing inconvenience and potential fraud/theft, but the user could select a different address to correct it.
From the tool's definition Tool modifies cart state by setting the shipping address ('Sets the shipping address for the cart'), which is a reversible configuration change that persists in the session context.
Documented attack patterns abuse exactly the kind of access select_address gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Food402, and nothing reaches the server without passing your rules. This is the rule we recommend for select_address:
{
"version": "1",
"default": "deny",
"tools": {
"select_address": {
"limits": [
{
"counter": "select_address_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}select_address 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.
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Select a delivery address. MUST be called before get_restaurants or add_to_basket. Sets the shipping address for the cart. It is categorised as a Write tool in the Food402 MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Food402 MCP server in PolicyLayer and add a rule for select_address: 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 Food402. Nothing to install.
select_address is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the select_address 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 select_address. 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.
select_address is provided by the Food402 MCP server (rersozlu/food402). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Food402, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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22 Food402 tools catalogued and risk-classified — across an index of 43,000+ MCP servers.