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

With no annotations, the description must carry the behavioral burden. It only discloses that the prompt is discarded, but does not mention that all parameters are likely ignored after shape checks (though schema descriptions do say this). It does not explain that the output is a generic template independent of input, nor any side effects or error behavior. This is insufficient for a tool with no annotation coverage.

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?

While the description is short (two sentences), it is under-specified rather than concise. The first sentence states a purpose but lacks detail, and the second sentence 'Prompt discarded' is ambiguous. There is no front-loading of critical information, and the brevity forces the reader to infer too much. The description is too minimal to be considered well-structured.

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 has 9 parameters, no annotations, no output schema, and a large sibling set, this description is severely incomplete. It does not explain what the three-step template is, how to interpret it, when to use it, or how to handle the parameters. The description fails to provide a sufficient mental model for an agent to call the tool correctly or understand its output.

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 already describes each parameter as being discarded after a shape check, so the schema covers 100% of parameter meanings. The tool description adds no additional meaning about how parameters relate to the returned template. Since coverage is high, a baseline of 3 is appropriate; the description does not enhance or contradict the schema.

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 specific verb ('Return') and a resource ('three-step thinking template'), so it is not a tautology. However, it does not explain what the template contains, why it exists, or how it differs from the many sibling utilities. The ambiguity of 'thinking template' and the unexplained 'Prompt discarded' leave the purpose unclear beyond a vague idea.

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 invoke this tool versus the sibling tools, no mention of alternatives, and no conditions for use. The description does not say whether it is meant for structured reasoning, debugging, or something else. The only hint is 'Prompt discarded', but it does not clarify a use case.

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