generate_invoice_number

Generate a unique invoice number

SERVERGhl SOURCEghl-mcp-server

Medium RISK CLASS

Category Write

Parameters 10 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/ghl/generate-invoice-number.md

WHAT IT DOES

What generate_invoice_number does on Ghl

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

Parameter	Type	Required	Description
`altId`	string	—	Location ID

Parameters from the server's own tool schema.

RISK

Why generate_invoice_number is rated Medium

This tool creates/generates a new invoice number, which is a reversible write operation. It does not charge money, process payments, or delete data. The severity is low because generating invoice numbers has minimal blast radius—it creates metadata without financial transactions or data destruction.

From the tool's definition Tool name 'generate_invoice_number' and description 'Generate a unique invoice number' indicate creation of a new invoice identifier resource.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs generate_invoice_number safely

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

generate_invoice_number Rate-limited

generate_invoice_number 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": {
    "generate_invoice_number": {
      "limits": [
        {
          "counter": "generate_invoice_number_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 Ghl, apply this rule, and every generate_invoice_number call is checked against it from then on.

FAQ

Questions about generate_invoice_number

What does the generate_invoice_number tool do? +

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

What parameters does generate_invoice_number accept? +

generate_invoice_number accepts 1 parameter: altId. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on generate_invoice_number? +

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

What risk level is generate_invoice_number? +

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

Can I rate-limit generate_invoice_number? +

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

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

generate_invoice_number is provided by the Ghl MCP server (ghl-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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