upload_company_attachment · CATS MCP Server MCP

WHAT IT DOES

What upload_company_attachment does on CATS MCP Server

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

WHY IT NEEDS A POLICY

Why upload_company_attachment needs a policy

File uploads are Write operations that create new data in the system. Severity is medium because: (1) blast radius is limited to company-associated attachments, not system-wide; (2) uploads are reversible (files can be deleted); (3) no indication of financial impact or destructive capability.

From the tool's definition Tool name 'upload_company_attachment' indicates file upload/storage operation. Description is empty, providing no additional context. Sibling tools show this server manages recruiting data (candidates, jobs, companies, contacts).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

upload_company_attachment Rate-limited

upload_company_attachment 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": {
    "upload_company_attachment": {
      "limits": [
        {
          "counter": "upload_company_attachment_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches CATS MCP Server, so you can run agents against it safely.

FAQ

Questions about upload_company_attachment

What does the upload_company_attachment tool do? +

upload_company_attachment. It is categorised as a Write tool in the CATS 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 upload_company_attachment? +

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

What risk level is upload_company_attachment? +

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

Can I rate-limit upload_company_attachment? +

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

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

upload_company_attachment is provided by the CATS MCP Server MCP server (vanman2024/cats-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.