unsubscribe_subreddit · Reddirect MCP: Risk & Policy

WHAT IT DOES

What unsubscribe_subreddit does on Reddirect

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

WHY IT NEEDS A POLICY

Why unsubscribe_subreddit needs a policy

Unsubscribing from a subreddit modifies the user's subscription list. While it removes a subscription, this is a reversible action (the user can re-subscribe at any time), so it falls under Write rather than Destructive. The blast radius is low as it only affects the user's own subreddit membership.

From the tool's definition Unsubscribe from a subreddit

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

unsubscribe_subreddit Rate-limited

unsubscribe_subreddit 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": {
    "unsubscribe_subreddit": {
      "limits": [
        {
          "counter": "unsubscribe_subreddit_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 Reddirect, so you can run agents against it safely.

FAQ

Questions about unsubscribe_subreddit

What does the unsubscribe_subreddit tool do? +

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

How do I enforce a policy on unsubscribe_subreddit? +

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

What risk level is unsubscribe_subreddit? +

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

Can I rate-limit unsubscribe_subreddit? +

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

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

unsubscribe_subreddit is provided by the Reddirect MCP server (jeebus87/reddirect). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.