update_reservation · MCP Seat Reservation Server MCP

WHAT IT DOES

What update_reservation does on MCP Seat Reservation Server

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

WHY IT NEEDS A POLICY

Why update_reservation needs a policy

This tool creates or modifies data in a reversible manner (characteristic of Write category). It updates an existing reservation rather than deleting it, so it does not qualify as Destructive.

From the tool's definition Tool name is 'update_reservation' and description states 'Update an existing reservation', which modifies existing reservation data reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_reservation Rate-limited

update_reservation 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": {
    "update_reservation": {
      "limits": [
        {
          "counter": "update_reservation_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 MCP Seat Reservation Server, so you can run agents against it safely.

FAQ

Questions about update_reservation

What does the update_reservation tool do? +

Update an existing reservation. It is categorised as a Write tool in the MCP Seat Reservation 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 update_reservation? +

Register the MCP Seat Reservation Server MCP server in PolicyLayer and add a rule for update_reservation: 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 Seat Reservation Server. Nothing to install.

What risk level is update_reservation? +

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

Can I rate-limit update_reservation? +

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

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

update_reservation is provided by the MCP Seat Reservation Server MCP server (nomura565/claude-chat-app-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.