validate_invoice · Dolibarr MCP Server MCP: Risk & Policy

WHAT IT DOES

What validate_invoice does on Dolibarr MCP Server

AI agents invoke validate_invoice to trigger actions in Dolibarr MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why validate_invoice needs a policy

Validating an invoice is an irreversible state transition that makes the invoice official and actionable (e.g., payable, sendable to customer). This is an external operation with significant business consequences — it cannot simply be undone like a write operation.

From the tool's definition Validate draft invoice — triggers a state transition on a financial document, moving it from draft to validated/confirmed status

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

validate_invoice Rate-limited

validate_invoice stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "validate_invoice": {
      "limits": [
        {
          "counter": "validate_invoice_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about validate_invoice

What does the validate_invoice tool do? +

Validate draft invoice. It is categorised as a Execute tool in the Dolibarr MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on validate_invoice? +

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

What risk level is validate_invoice? +

validate_invoice is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit validate_invoice? +

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

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

validate_invoice is provided by the Dolibarr MCP Server MCP server (marioser/dolibarr-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.