Jokes By Api Ninjas

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It only states it's an 'API endpoint', which implies a read operation but does not specify what it returns (e.g., random jokes, categories), rate limits, authentication needs, or error handling. This leaves critical behavioral traits undocumented.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, efficient sentence with no wasted words. However, it is under-specified rather than concise—it lacks necessary detail about the tool's function, which slightly reduces its effectiveness despite the brevity.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given no annotations, no output schema, and a simple parameter, the description is incomplete. It fails to explain what the tool does, what it returns, or key behaviors, making it inadequate for an agent to use effectively. The high schema coverage does not compensate for these gaps.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 100% description coverage for its single parameter 'limit', detailing its type, range, and default. The description adds no parameter semantics beyond what the schema provides, so it meets the baseline of 3 for high schema coverage without compensating value.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description 'API Ninjas Jokes API endpoint' is tautological—it restates the tool name 'v1jokes' without specifying what the tool actually does. It lacks a clear verb (e.g., 'fetch', 'retrieve') and resource (e.g., 'jokes'), failing to distinguish from any siblings (though none exist). This is minimally better than a tautology like 'Jokes' but still vague.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is provided on when to use this tool. The description does not mention any context, prerequisites, or alternatives, leaving the agent with no information about appropriate usage scenarios. This is a complete lack of guidance.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.