upload_receipt

Upload a receipt image for scanning and expense logging.

SERVERNitrostack SOURCEnitrocloudofficial/nitrostack

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/nitrostack/upload-receipt.md

WHAT IT DOES

What upload_receipt does on Nitrostack

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

RISK

Why upload_receipt is rated Medium

Creates or modifies expense records by processing receipt images; reversible data creation with financial implications.

From the tool's definition Upload receipt image for scanning and expense logging.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs upload_receipt safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Nitrostack, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For upload_receipt, this is the rule to start with:

upload_receipt Rate-limited

upload_receipt 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_receipt": {
      "limits": [
        {
          "counter": "upload_receipt_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Nitrostack, apply this rule, and every upload_receipt call is checked against it from then on.

FAQ

Questions about upload_receipt

What does the upload_receipt tool do? +

Upload a receipt image for scanning and expense logging. It is categorised as a Write tool in the Nitrostack 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_receipt? +

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

What risk level is upload_receipt? +

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

Can I rate-limit upload_receipt? +

Yes. Add a rate_limit block to the upload_receipt 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_receipt completely? +

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

upload_receipt is provided by the Nitrostack MCP server (nitrocloudofficial/nitrostack). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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