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 conveys randomness but does not describe output format, whether the optional parameters affect the result, or any other observable behavior.

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 short and has no wasted words, but it is under-specified: the redundant 'Random Riddle:' prefix adds nothing, and the sentence does not earn its place by providing enough operational detail.

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?

There is no output schema, no annotations, and two parameters whose purpose is unclear in the context of riddles. The description does not explain return values or the role of n/value, so an agent cannot reliably know how to invoke or interpret the tool.

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 describes the parameters as 'N to process' and 'Value to process', which are semantically disconnected from generating a random riddle. The description adds no clarification about why these parameters exist or how they influence the riddle.

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 states a clear action ('Generate') and a specific resource ('a random riddle'), which is enough to communicate the core purpose. It is not a tautology, though it does not explicitly contrast itself with the many sibling random-content tools.

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?

There is no guidance on when to use this tool versus x402-random-fact, x402-random-joke, x402-random-quote, x402-random-word, or other similar siblings. The intended selection criteria are left entirely to inference.

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