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

With no annotations, the description carries the full burden for behavioral disclosure. It only mentions 'get a response,' which is trivial and expected. It does not disclose any side effects, rate limits, authentication needs, error behavior, or what a response contains. This is far too little context for an agent to anticipate 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 one short sentence, but it is under-specified rather than efficiently concise. It lacks critical context that an agent needs, making it resemble an incomplete stub. A concise description should still carry meaningful information; this one does not.

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 the tool's simplicity (no output schema, no annotations, only two parameters), the description should still explain what Fortytwo Prime is and what kind of tasks it can handle. The current text offers no contextual depth, leaving the agent to rely on the name and parameter schema alone. This is inadequate for reliable tool selection.

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?

Schema description coverage is 100% and there are only two parameters, with the schema already providing clear meanings for 'query' and 'max_tokens'. The description adds no parameter information, so it neither helps nor hurts. The baseline of 3 is appropriate because the schema is self-sufficient.

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 'Ask Fortytwo Prime and get a response' is nearly a tautology of the tool name. It names the resource and action but adds no scope or specificity about what kinds of questions or tasks Fortytwo Prime handles. Without sibling tools, there is no differentiation, but the purpose is still too vague to be helpful.

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?

The description provides no guidance on when to use this tool versus alternatives, prerequisites, or context. It simply states the action and result, leaving the agent to infer usage entirely from the schema. No exclusions or alternative tool references are given.

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