Get a random Chuck Norris joke
AI agents call get-chuck-joke 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 retrieves and returns data (a joke) without modifying, creating, deleting, or executing any operations. It has no blast radius if misused by an AI agent—the worst outcome is receiving a joke. This is a straightforward Read category tool.
From the tool's definition Tool name 'get-chuck-joke' and description 'Get a random Chuck Norris joke' indicate a retrieval operation with no side effects. The server is described as providing tools to 'fetch' jokes, explicitly a read-only operation.
Attacks that exploit this kind of access
Get a random Chuck Norris joke. 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: 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 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 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. 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 is provided by the Jokes MCP Server MCP server (manuelpsnunes/mcpserver). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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