check_availability

Prueft, wie viele Einheiten eines Artikels aktuell bestellbar sind (unter Beruecksichtigung von Bestand und Lieferstatus).

SERVERShop SOURCEhttps://mcp.tabak-brucker.de/mcp

Low RISK CLASS

Category Read

Parameters 21 required

Recommended Allowedsee the rule below

Registry record Grade C, identity unverified Pull the record →

This record as markdown: /tools/de-tabak-brucker-www-shop/check-availability.md

WHAT IT DOES

What check_availability does on Shop

AI agents call check_availability to retrieve information from Shop without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Parameter	Type	Required	Description
`menge`	integer	—	Gewuenschte Menge (Default 1).
`artikel_id`	integer	Yes	Artikel-ID.

Parameters from the server's own tool schema.

RISK

Why check_availability is rated Low

Even though check_availability only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs check_availability safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Shop, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For check_availability, this is the rule to start with:

check_availability Allowed

check_availability is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Shop, apply this rule, and every check_availability call is checked against it from then on.

FAQ

Questions about check_availability

What does the check_availability tool do? +

Prueft, wie viele Einheiten eines Artikels aktuell bestellbar sind (unter Beruecksichtigung von Bestand und Lieferstatus). It is categorised as a Read tool in the Shop MCP Server, which means it retrieves data without modifying state.

What parameters does check_availability accept? +

check_availability accepts 2 parameters: menge, artikel_id. Required: artikel_id. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on check_availability? +

Register the Shop MCP server in PolicyLayer and add a rule for check_availability: 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 Shop. Nothing to install.

What risk level is check_availability? +

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

Can I rate-limit check_availability? +

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

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

check_availability is provided by the Shop MCP server (https://mcp.tabak-brucker.de/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Shop, and thousands of servers like it.

This server

All 19 Shop tools →

Across the catalogue

The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →