enable_afk_mode · Memex MCP: Risk & Policy

WHAT IT DOES

What enable_afk_mode does on Memex

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

WHY IT NEEDS A POLICY

Why enable_afk_mode needs a policy

An AI agent can call enable_afk_mode faster than any human can review — one bad instruction and it creates or modifies resources in Memex by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

enable_afk_mode Rate-limited

enable_afk_mode 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": {
    "enable_afk_mode": {
      "limits": [
        {
          "counter": "enable_afk_mode_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 Memex, so you can run agents against it safely.

FAQ

Questions about enable_afk_mode

What does the enable_afk_mode tool do? +

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

How do I enforce a policy on enable_afk_mode? +

Register the Memex MCP server in PolicyLayer and add a rule for enable_afk_mode: 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 Memex. Nothing to install.

What risk level is enable_afk_mode? +

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

Can I rate-limit enable_afk_mode? +

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

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

enable_afk_mode is provided by the Memex MCP server (queflyhq/memex). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.