tellAFunnyJoke

Tells jokes about an input topic. Use this tool whenever user asks you to tell a joke.

SERVERGenkit MCP SOURCEgenkit-ai/genkit

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/firebase-genkit/tellafunnyjoke.md

WHAT IT DOES

What tellAFunnyJoke does on Genkit MCP

AI agents call tellAFunnyJoke to retrieve information from Genkit MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why tellAFunnyJoke is rated Low

This tool retrieves or generates joke content without modifying any state, executing external commands, or causing side effects. It fits the Read category as it produces output without reversible or irreversible changes to any system. The severity is low because even misuse (generating inappropriate jokes) has minimal blast radius and no operational impact.

From the tool's definition Tool description states 'Tells jokes about an input topic' - a pure generative/output function with no data modification, deletion, or external side effects. The action is retrieval/generation of content based on input parameters.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs tellAFunnyJoke safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Genkit MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For tellAFunnyJoke, this is the rule to start with:

tellAFunnyJoke Allowed

tellAFunnyJoke is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "tellAFunnyJoke": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Genkit MCP, apply this rule, and every tellAFunnyJoke call is checked against it from then on.

FAQ

Questions about tellAFunnyJoke

What does the tellAFunnyJoke tool do? +

Tells jokes about an input topic. Use this tool whenever user asks you to tell a joke. It is categorised as a Read tool in the Genkit MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on tellAFunnyJoke? +

Register the Genkit MCP server in PolicyLayer and add a rule for tellAFunnyJoke: 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 Genkit MCP. Nothing to install.

What risk level is tellAFunnyJoke? +

tellAFunnyJoke is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit tellAFunnyJoke? +

Yes. Add a rate_limit block to the tellAFunnyJoke 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.

How do I block tellAFunnyJoke completely? +

Set action: deny in the PolicyLayer policy for tellAFunnyJoke. 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.

What MCP server provides tellAFunnyJoke? +

tellAFunnyJoke is provided by the Genkit MCP server (genkit-ai/genkit). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Genkit, and thousands of servers like it.

This server

All 72 Genkit tools →

Across the catalogue

The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →