List all RSS feed subscriptions. Shows all subscribed routes with their details.
AI agents call list_subscriptions to retrieve information from RSSHub MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only operation by listing/retrieving subscription information. There are no side effects, no data modification, no deletion, and no code execution. It falls squarely into the Read category (retrieves or queries data). Severity is low because unauthorized access would only expose subscription metadata, not financial data or enable destructive actions.
From the tool's definition Tool name 'list_subscriptions' and description 'List all RSS feed subscriptions. Shows all subscribed routes with their details' indicate a query operation that retrieves and displays existing subscription data without modifying, deleting, or executing any…
Documented attack patterns abuse exactly the kind of access list_subscriptions gives an agent:
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 list_subscriptions:
{
"version": "1",
"default": "deny",
"tools": {
"list_subscriptions": {}
}
}list_subscriptions is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all RSS feed subscriptions. Shows all subscribed routes with their details. It is categorised as a Read tool in the RSSHub MCP Server MCP Server, which means it retrieves data without modifying state.
Register the RSSHub MCP Server MCP server in PolicyLayer and add a rule for list_subscriptions: 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.
list_subscriptions is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_subscriptions 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.
Set action: deny in the PolicyLayer policy for list_subscriptions. 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.
list_subscriptions 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.
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.
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5 RSSHub MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.