Get articles by subscribing to RSS, status has only two values: normal, favorite, source is empty to indicate all sources, Sort by article time, with the latest at the front.
AI agents call get_content to retrieve information from MCP RSS 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 that retrieves and filters RSS articles without any side effects. It queries existing data (RSS feeds, articles, and their metadata) and returns sorted results. There is no capability to modify, delete, or execute operations.
From the tool's definition Tool description states it 'Get articles by subscribing to RSS' with filtering by status and source, and sorting by article time. No modification, creation, or deletion of data is mentioned. The action is purely retrieving/querying existing RSS feed content.
Attacks that exploit this kind of access
Get articles by subscribing to RSS, status has only two values: normal, favorite, source is empty to indicate all sources, Sort by article time, with the latest at the front. It is categorised as a Read tool in the MCP RSS Server MCP Server, which means it retrieves data without modifying state.
Register the MCP RSS Server MCP server in PolicyLayer and add a rule for get_content: 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 Server. Nothing to install.
get_content 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 get_content 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 get_content. 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.
get_content is provided by the MCP RSS Server MCP server (xrusjohn/mcp_rss_buhe). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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