Get a random Chuck Norris joke by category
AI agents call get-chuck-joke-by-category to retrieve information from Jokes 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 simple read operation—it retrieves pre-existing joke data from a category and returns it to the user. There is no data modification, deletion, code execution, or financial transaction involved. The operation is purely informational and has no adverse consequences if misused by an AI agent. Severity is low due to the benign nature of the data being accessed.
From the tool's definition Tool name 'get-chuck-joke-by-category' and description 'Get a random Chuck Norris joke by category' indicate a retrieval operation that queries and returns joke data with no side effects, modifications, deletions, or external operations.
Attacks that exploit this kind of access
Get a random Chuck Norris joke by category. It is categorised as a Read tool in the Jokes MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Jokes MCP Server MCP server in PolicyLayer and add a rule for get-chuck-joke-by-category: 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 Jokes MCP Server. Nothing to install.
get-chuck-joke-by-category 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-chuck-joke-by-category 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-chuck-joke-by-category. 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-chuck-joke-by-category is provided by the Jokes MCP Server MCP server (rahulsnc3it/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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