send_document · Evolution API MCP Server MCP: Risk & Policy

WHAT IT DOES

What send_document does on Evolution API MCP Server

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

WHY IT NEEDS A POLICY

Why send_document needs a policy

This tool creates and sends WhatsApp documents to users, modifying the state of conversations and message history. It is reversible (messages can be deleted) and has no financial impact, making it Write rather than Destructive or Financial.

From the tool's definition Tool name 'send_document' combined with server context showing it enables WhatsApp message sending. Sibling tools like 'send_text_message', 'send_audio', and 'send_image' all create and transmit data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

send_document Rate-limited

send_document 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": {
    "send_document": {
      "limits": [
        {
          "counter": "send_document_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about send_document

What does the send_document tool do? +

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

How do I enforce a policy on send_document? +

Register the Evolution API MCP Server MCP server in PolicyLayer and add a rule for send_document: 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 Evolution API MCP Server. Nothing to install.

What risk level is send_document? +

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

Can I rate-limit send_document? +

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

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

send_document is provided by the Evolution API MCP Server MCP server (pablobispo/evoapi-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.