list_feeds

THE RISK

Low Risk

Why list_feeds needs a policy

This tool retrieves and enumerates existing feed subscriptions without modifying, deleting, or executing any operations. It is a simple data query with no blast radius if misused by an AI agent.

From the tool's definition Tool name 'list_feeds' and description 'List all feed subscriptions' indicate a retrieval operation with no side effects. The server description confirms it enables 'listing feeds' as a read-only operation.

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

POLICY

How to control list_feeds

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_feeds": {}
  }
}

list_feeds is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register FreshRSS 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.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More FreshRSS MCP Server tools

Write mark_feed_read Mark all items in a feed as read Write mark_item_read Mark an item as read Write mark_item_unread Mark an item as unread Read get_feed_groups Get feed groups Read get_feed_items Get items from a specific feed Read get_items Get specific items by their IDs Read get_unread Get unread items

All 8 FreshRSS MCP Server tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about list_feeds

What does the list_feeds tool do? +

List all feed subscriptions. It is categorised as a Read tool in the FreshRSS MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_feeds? +

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

What risk level is list_feeds? +

list_feeds is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_feeds? +

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

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

list_feeds is provided by the FreshRSS MCP Server MCP server (rakeshgangwar/freshrss-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every FreshRSS MCP Server tool call.

Start from FreshRSS 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 →