unsubscribe

THE RISK

Critical Risk

Why unsubscribe needs a policy

The tool removes/deletes a subscription, which is an irreversible deletion of a stored subscription record. 'Remove a subscription' indicates data is destroyed rather than merely modified. Severity is medium as it only affects RSS feed subscriptions, not critical data.

From the tool's definition Unsubscribe from an RSSHub feed. Remove a subscription by ID or route.

Documented attack patterns abuse exactly the kind of access unsubscribe gives an agent:

POLICY

How to control unsubscribe

PolicyLayer is an MCP gateway — it sits between your AI agents and RSSHub MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for unsubscribe:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "unsubscribe"
  ]
}

unsubscribe disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register RSSHub MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More RSSHub MCP Server tools

Write subscribe Subscribe to an RSSHub feed. Add a route to your subscription list for easy access later. Read get_feed Get RSSHub feed content. If route is provided, fetch specific feed. If no route is provide Read list_subscriptions List all RSS feed subscriptions. Shows all subscribed routes with their details. Read search_routes Search RSSHub routes. Support fuzzy search by keywords, can search platform names, route n

All 5 RSSHub MCP Server tools →

Destructive tools on other servers

Android Forensics ADB MCP Server create_full_backup 0xarchive web3_revoke_key Frida Game Hacking MCP clear_scan cPanel MCP Server clear_spam_box

Go deeper

Critical-risk tools in RSSHub MCP Server → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about unsubscribe

What does the unsubscribe tool do? +

Unsubscribe from an RSSHub feed. Remove a subscription by ID or route. It is categorised as a Destructive tool in the RSSHub MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on unsubscribe? +

Register the RSSHub MCP Server MCP server in PolicyLayer and add a rule for unsubscribe: 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 RSSHub MCP Server. Nothing to install.

What risk level is unsubscribe? +

unsubscribe is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit unsubscribe? +

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

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

unsubscribe is provided by the RSSHub MCP Server MCP server (panxiande/rsshub-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every RSSHub MCP Server tool call.

Start from RSSHub MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →