mcp__willys_select_slot · Willys MCP Server MCP

WHAT IT DOES

What mcp__willys_select_slot does on Willys MCP Server

AI agents use mcp__willys_select_slot to create or update resources in Willys MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Willys MCP Server environment.

WHY IT NEEDS A POLICY

Why mcp__willys_select_slot needs a policy

Booking a delivery/pickup slot is a write operation that creates a reservation and modifies customer order state. It's reversible (slots can typically be rebooked or cancelled), so it's Write rather than Destructive. The severity is high because misuse could result in numerous unwanted deliveries booked to a customer's account, causing inconvenience and potential logistics issues.

From the tool's definition Tool description states 'Book a specific delivery or pickup time slot' which is a commitment action that modifies customer booking state.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

mcp__willys_select_slot Rate-limited

mcp__willys_select_slot 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.

View as policy code

policy.json

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

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Willys MCP Server, so you can run agents against it safely.

FAQ

Questions about mcp__willys_select_slot

What does the mcp__willys_select_slot tool do? +

Book a specific delivery or pickup time slot using session-based authentication and TMS data for delivery slots. It is categorised as a Write tool in the Willys 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 mcp__willys_select_slot? +

Register the Willys MCP Server MCP server in PolicyLayer and add a rule for mcp__willys_select_slot: 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 Willys MCP Server. Nothing to install.

What risk level is mcp__willys_select_slot? +

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

Can I rate-limit mcp__willys_select_slot? +

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

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

mcp__willys_select_slot is provided by the Willys MCP Server MCP server (jimmystridh/willys-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.