Get all categories and their article counts for a specific date.
AI agents call get_categories to retrieve information from Boring News without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries data without modifying, deleting, or executing code. The operation has no side effects beyond reading from the API. It is clearly a Read category tool with low severity since it merely exposes read-only access to news category metadata.
From the tool's definition Tool description states 'Get all categories' - a retrieval operation. The server is explicitly described as 'for fetching and summarizing news articles', and this tool retrieves categorical metadata with article counts for a specific date.
Attacks that exploit this kind of access
Get all categories and their article counts for a specific date. It is categorised as a Read tool in the Boring News MCP Server, which means it retrieves data without modifying state.
Register the Boring News MCP server in PolicyLayer and add a rule for get_categories: 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 Boring News. Nothing to install.
get_categories 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_categories 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_categories. 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_categories is provided by the Boring News MCP server (oliviergg/boring-news-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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