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

With no annotations, the description carries the behavioral disclosure burden. It does state the key behavior: a fixed template is returned and the prompt is discarded, implying no real processing. However, it does not explicitly say that all nine parameters are ignored or that no network/disk access occurs, and the url/host/zone parameter descriptions could mislead an agent into thinking those inputs are used.

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 two short sentences, front-loads the purpose, and contains no filler. The 'Prompt discarded' clause earns its place as a behavioral caveat. This is an appropriately minimal description for a simple fixed-template tool.

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?

The description is minimally adequate for a tool that returns a fixed template and needs no required parameters. However, the nine optional parameters create a confusing surface: the description does not explain why they exist, whether any should be passed, or what the three-step template actually contains. Without an output schema, an agent has to infer too much from the terse text.

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%, so the baseline is 3 even without parameter details in the tool description. The description itself adds no parameter-level meaning beyond 'Prompt discarded,' which vaguely hints that inputs should not be relied on. The schema descriptions provide the actual parameter semantics.

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 clearly states the action ('Return') and the resource ('a three-step thinking template'), so the core purpose is unambiguous. It also adds the caveat 'Prompt discarded,' which distinguishes it from analysis tools. However, it doesn't explicitly differentiate from sibling tools or explain why an agent would use this over a more specific tool.

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 given about when to use this tool versus the 27 sibling tools. 'Prompt discarded' warns that the input will not be processed, but it doesn't say 'use for generic thinking scaffolding' or 'not for URL/timezone/weather operations.' An agent selecting among siblings receives no routing help.

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