AI agents call searchRssFeeds to retrieve information from MCP-RSS-Crawler without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a search operation across RSS feeds to retrieve articles. It is a read-only operation that queries existing data and presents results to the user without creating, modifying, deleting, or executing any external actions. The blast radius of misuse is minimal—an agent could only retrieve unwanted information, not cause harm or alter system state.
From the tool's definition Tool name 'searchRssFeeds' and description 'Search for articles in configured RSS feeds' indicate a query operation that retrieves data without modification or side effects.
Documented attack patterns abuse exactly the kind of access searchRssFeeds gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MCP-RSS-Crawler, and nothing reaches the server without passing your rules. This is the rule we recommend for searchRssFeeds:
{
"version": "1",
"default": "deny",
"tools": {
"searchRssFeeds": {}
}
}searchRssFeeds is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Search for articles in configured RSS feeds. It is categorised as a Read tool in the MCP-RSS-Crawler MCP Server, which means it retrieves data without modifying state.
Register the MCP-RSS-Crawler MCP server in PolicyLayer and add a rule for searchRssFeeds: 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 MCP-RSS-Crawler. Nothing to install.
searchRssFeeds 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 searchRssFeeds 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 searchRssFeeds. 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.
searchRssFeeds is provided by the MCP-RSS-Crawler MCP server (mshk/mcp-rss-crawler). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from MCP-RSS-Crawler, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
18 MCP-RSS-Crawler tools catalogued and risk-classified — across an index of 43,000+ MCP servers.