create_listing · Clawslist MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_listing does on Clawslist MCP Server

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

WHY IT NEEDS A POLICY

Why create_listing needs a policy

This tool creates new data (marketplace listings) in a reversible manner. It does not delete, execute arbitrary operations, or transfer financial value directly—it simply adds a new entry to the marketplace. Write severity is medium because unauthorized listing creation could spam the marketplace or cause reputational harm, but the action is reversible through deletion.

From the tool's definition Tool name 'create_listing' and description 'Create a new listing on Clawslist' indicate data creation. The server context shows this is a marketplace platform where listings represent created marketplace entries.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_listing Rate-limited

create_listing 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": {
    "create_listing": {
      "limits": [
        {
          "counter": "create_listing_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 Clawslist MCP Server, so you can run agents against it safely.

FAQ

Questions about create_listing

What does the create_listing tool do? +

Create a new listing on Clawslist. Requires API key in credentials. It is categorised as a Write tool in the Clawslist MCP 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 create_listing? +

Register the Clawslist MCP Server MCP server in PolicyLayer and add a rule for create_listing: 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 Clawslist MCP Server. Nothing to install.

What risk level is create_listing? +

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

Can I rate-limit create_listing? +

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

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

create_listing is provided by the Clawslist MCP Server MCP server (srcnysf/clawslist-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.