prepare_dump_upload · Dump Analyzer MCP: Risk & Policy

WHAT IT DOES

What prepare_dump_upload does on Dump Analyzer

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

WHY IT NEEDS A POLICY

Why prepare_dump_upload needs a policy

This tool facilitates uploading crash dump files to a remote Windows analysis service. While uploads themselves are reversible (files can be deleted), the tool creates/modifies the upload staging or metadata state on the server. It does not retrieve data (Read), execute arbitrary commands (Execute), irreversibly delete data (Destructive), or transfer financial value (Financial).

From the tool's definition Tool prepares and returns an upload URL for crash dump files, which creates or stages data in a remote system. The description explicitly mentions 'upload' and 'prepare', indicating creation/modification of uploaded data state.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

prepare_dump_upload Rate-limited

prepare_dump_upload 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": {
    "prepare_dump_upload": {
      "limits": [
        {
          "counter": "prepare_dump_upload_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 Dump Analyzer, so you can run agents against it safely.

FAQ

Questions about prepare_dump_upload

What does the prepare_dump_upload tool do? +

Prepare a crash dump upload and return a pre-signed upload URL. It is categorised as a Write tool in the Dump Analyzer MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on prepare_dump_upload? +

Register the Dump Analyzer MCP server in PolicyLayer and add a rule for prepare_dump_upload: 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 Dump Analyzer. Nothing to install.

What risk level is prepare_dump_upload? +

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

Can I rate-limit prepare_dump_upload? +

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

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

prepare_dump_upload is provided by the Dump Analyzer MCP server (zuohuiyang/dump-analyzer-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.