Low Risk

list_categories

List all service categories on satring.com.

How to control list_categories ↓

What list_categories does on Satring

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

Low Risk

Why list_categories needs a policy

This tool queries and returns categorical metadata from the satring.com directory. It retrieves information without modifying, deleting, or executing any operations. The operation is read-only with minimal blast radius if invoked by an AI agent.

From the tool's definition Tool name 'list_categories' and description 'List all service categories' indicate a retrieval operation with no side effects.

Documented attack patterns abuse exactly the kind of access list_categories gives an agent:

How to control list_categories

PolicyLayer is an MCP gateway — it sits between your AI agents and Satring, and nothing reaches the server without passing your rules. This is the rule we recommend for list_categories:

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

list_categories is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Satring — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Related tools and policies

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Questions about list_categories

What does the list_categories tool do? +

List all service categories on satring.com. It is categorised as a Read tool in the Satring MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_categories? +

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

What risk level is list_categories? +

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

Can I rate-limit list_categories? +

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

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

list_categories is provided by the Satring MCP server (toadlybroodle/satring). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Satring tool call.

Start from Satring, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

Free to start. No card required.

7 Satring tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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