find_package

THE RISK

Low Risk

Why find_package needs a policy

This tool retrieves or queries information about packages based on use cases. The verb 'find' combined with the static description suggests a read-only operation that searches existing data without creating, modifying, deleting, or executing code. No side effects are expected from querying package information.

From the tool's definition Tool name 'find_package' with description 'Find package by use case' indicates a lookup or search operation with no modification capabilities.

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

POLICY

How to control find_package

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

policy.json

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

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

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

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about find_package

What does the find_package tool do? +

Find package by use case. It is categorised as a Read tool in the Clocktower MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on find_package? +

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

What risk level is find_package? +

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

Can I rate-limit find_package? +

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

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

find_package is provided by the Clocktower MCP server (sathergate/sathergate-toolkit). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Clocktower tool call.

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

CHECK YOUR STACK →