Low Risk

items.suppliers

Zoek leveranciersartikelen. Zoek welke leveranciers een artikel leveren (op itemCode) of welke artikelen een leverancier levert (op supplierCode). Kan ook vrij zoeken op tekst. Gebruik minimaal één filter. Geef in de context parameter aan waarom je deze tool aanroept. | Search supplier items. Fin...

Risk signalsAccepts freeform code/query input (query)

Part of the Exact Online server.

items.suppliers is read-only, but an agent in a loop can still rack up calls and cost. PolicyLayer caps every call before it runs. Live in minutes.

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AI agents call items.suppliers to retrieve information from Exact Online without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.

Even though items.suppliers only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.

Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "items.suppliers": {}
  }
}

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These attack patterns abuse exactly the kind of access items.suppliers gives an agent. Each links to the full case and the policy that stops it:

Browse the full MCP Attack Database →

Every attack above starts with a tool call. PolicyLayer checks each one against your policy first, so items.suppliers only ever does what you allow.

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Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.

What does the items.suppliers tool do? +

Zoek leveranciersartikelen. Zoek welke leveranciers een artikel leveren (op itemCode) of welke artikelen een leverancier levert (op supplierCode). Kan ook vrij zoeken op tekst. Gebruik minimaal één filter. Geef in de context parameter aan waarom je deze tool aanroept. | Search supplier items. Find which suppliers deliver an item or which items a supplier delivers.. It is categorised as a Read tool in the Exact Online MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on items.suppliers? +

Register the Exact Online MCP server in PolicyLayer and add a rule for items.suppliers: 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 Exact Online. Nothing to install.

What risk level is items.suppliers? +

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

Can I rate-limit items.suppliers? +

Yes. Add a rate_limit block to the items.suppliers 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 items.suppliers completely? +

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

items.suppliers is provided by the Exact Online MCP server (IndustrialIT/LedgerBotje). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Exact Online tool call.

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