testmo_upload_case_attachment · Testmo MCP: Risk & Policy

WHAT IT DOES

What testmo_upload_case_attachment does on Testmo

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

WHY IT NEEDS A POLICY

Why testmo_upload_case_attachment needs a policy

Uploading an attachment creates or adds new data (a file/attachment record) to a test case, which is a reversible Write operation. It does not execute arbitrary code, delete data irreversibly, or move money. While uploads could theoretically be abused to store malicious files, the primary function is data creation/modification, warranting Write classification.

From the tool's definition Tool name 'testmo_upload_case_attachment' indicates creation/upload of attachment data to test cases. The 'upload' verb and context of a test management system (Testmo) suggest file/data addition operations.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

testmo_upload_case_attachment Rate-limited

testmo_upload_case_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": {
    "testmo_upload_case_attachment": {
      "limits": [
        {
          "counter": "testmo_upload_case_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 Testmo, so you can run agents against it safely.

FAQ

Questions about testmo_upload_case_attachment

What does the testmo_upload_case_attachment tool do? +

testmo_upload_case_attachment. It is categorised as a Write tool in the Testmo MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on testmo_upload_case_attachment? +

Register the Testmo MCP server in PolicyLayer and add a rule for testmo_upload_case_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 Testmo. Nothing to install.

What risk level is testmo_upload_case_attachment? +

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

Can I rate-limit testmo_upload_case_attachment? +

Yes. Add a rate_limit block to the testmo_upload_case_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 testmo_upload_case_attachment completely? +

Set action: deny in the PolicyLayer policy for testmo_upload_case_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 testmo_upload_case_attachment? +

testmo_upload_case_attachment is provided by the Testmo MCP server (strelec00/testmo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.