keyid_set_forwarding · KeyID Agent Kit MCP: Risk & Policy

WHAT IT DOES

What keyid_set_forwarding does on KeyID Agent Kit

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

WHY IT NEEDS A POLICY

Why keyid_set_forwarding needs a policy

The tool writes/modifies email account settings (forwarding rules) in a way that can be undone by reconfiguring or disabling forwarding. It does not delete data or move money, but misconfiguration by an AI agent could redirect sensitive emails to an attacker-controlled address, causing significant privacy and security harm.

From the tool's definition 'Configure email forwarding to another address' — this modifies email routing settings, which is a reversible configuration change that affects how messages are delivered.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

keyid_set_forwarding Rate-limited

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

FAQ

Questions about keyid_set_forwarding

What does the keyid_set_forwarding tool do? +

Configure email forwarding to another address. It is categorised as a Write tool in the KeyID Agent Kit MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on keyid_set_forwarding? +

Register the KeyID Agent Kit MCP server in PolicyLayer and add a rule for keyid_set_forwarding: 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_set_forwarding? +

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

Can I rate-limit keyid_set_forwarding? +

Yes. Add a rate_limit block to the keyid_set_forwarding 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_set_forwarding completely? +

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

keyid_set_forwarding 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.