send_embed_with_fields · Discord Webhook MCP: Risk & Policy

WHAT IT DOES

What send_embed_with_fields does on Discord Webhook MCP

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

WHY IT NEEDS A POLICY

Why send_embed_with_fields needs a policy

This tool creates and posts new content to Discord channels via webhooks. It does not retrieve data (Read), execute arbitrary code or commands (Execute), delete anything (Destructive), or move money (Financial). The write operation is reversible—messages can be edited or deleted by users afterward.

From the tool's definition The tool 'send_embed_with_fields' sends/creates structured embeds to Discord with custom fields and formatting options.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

send_embed_with_fields Rate-limited

send_embed_with_fields 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_embed_with_fields": {
      "limits": [
        {
          "counter": "send_embed_with_fields_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 Discord Webhook MCP, so you can run agents against it safely.

FAQ

Questions about send_embed_with_fields

What does the send_embed_with_fields tool do? +

Send an embed with custom fields. Fields allow you to create structured data displays with name-value pairs. You can have up to 25 fields, and they can be displayed inline or as blocks. Great for lists, data tables, or structured information. It is categorised as a Write tool in the Discord Webhook MCP 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_embed_with_fields? +

Register the Discord Webhook MCP server in PolicyLayer and add a rule for send_embed_with_fields: 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 Discord Webhook MCP. Nothing to install.

What risk level is send_embed_with_fields? +

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

Can I rate-limit send_embed_with_fields? +

Yes. Add a rate_limit block to the send_embed_with_fields 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_embed_with_fields completely? +

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

send_embed_with_fields is provided by the Discord Webhook MCP server (llmtooling/discord-webhook-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.