AI agents call rss_source_get to retrieve information from Legado without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Given the clear context of similar 'get' operations on this server and the absence of any destructive, write, or execute indicators in the tool name, this tool almost certainly retrieves RSS source data. The empty description prevents full certainty, but the naming pattern and server purpose (managing book and RSS sources) strongly suggest a read operation with minimal risk.
From the tool's definition Tool name 'rss_source_get' follows the 'get' pattern, indicating data retrieval. Sibling tools like 'book_get_chapters', 'book_get_content', 'book_get_cover', and 'book_get_image' establish a clear naming convention for retrieval operations on the Legado…
Documented attack patterns abuse exactly the kind of access rss_source_get gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Legado, and nothing reaches the server without passing your rules. This is the rule we recommend for rss_source_get:
{
"version": "1",
"default": "deny",
"tools": {
"rss_source_get": {}
}
}rss_source_get is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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rss_source_get. It is categorised as a Read tool in the Legado MCP Server, which means it retrieves data without modifying state.
Register the Legado MCP server in PolicyLayer and add a rule for rss_source_get: 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 Legado. Nothing to install.
rss_source_get 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 rss_source_get 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 rss_source_get. 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.
rss_source_get is provided by the Legado MCP server (joestar817/legado-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Legado, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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31 Legado tools catalogued and risk-classified — across an index of 43,000+ MCP servers.