keyid_send · KeyID Agent Kit MCP: Risk & Policy

WHAT IT DOES

What keyid_send does on KeyID Agent Kit

AI agents invoke keyid_send to trigger actions in KeyID Agent Kit. 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 keyid_send needs a policy

Sending an email is an external operation with real-world side effects (delivering messages to third parties). It is not merely writing data internally — it triggers external communication. Misuse could involve spamming, phishing, or sending sensitive/harmful content to arbitrary recipients. This fits the Execute category as it triggers external operations whose effects depend on arguments.

From the tool's definition Send an email from this agent. Supports HTML, CC, BCC, attachments, display name, and scheduled delivery.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

keyid_send Rate-limited

keyid_send 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": {
    "keyid_send": {
      "limits": [
        {
          "counter": "keyid_send_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 KeyID Agent Kit, so you can run agents against it safely.

FAQ

Questions about keyid_send

What does the keyid_send tool do? +

Send an email from this agent. Supports HTML, CC, BCC, attachments, display name, and scheduled delivery. It is categorised as a Execute tool in the KeyID Agent Kit MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on keyid_send? +

Register the KeyID Agent Kit MCP server in PolicyLayer and add a rule for keyid_send: 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 KeyID Agent Kit. Nothing to install.

What risk level is keyid_send? +

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

Can I rate-limit keyid_send? +

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

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

keyid_send is provided by the KeyID Agent Kit MCP server (keyid-ai/agent-kit). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.