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

Annotations are absent, so the description carries the burden. It does disclose that the prompt is discarded, a useful behavioral detail, but it ignores that most schema parameters are also discarded and the template's return behavior is unspecified.

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 text is genuinely short and the key phrase 'Prompt discarded' is front-loaded, but the extreme brevity under-specifies a tool with many parameters, so it is concise at the cost of completeness.

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?

With no annotations, no output schema, and a schema containing many parameters, the description must explain runtime behavior and invocation context. It fails to say what the template looks like, which parameters are actually used, or what the response contains.

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 gives each parameter a description, so coverage is high. The description adds no new parameter meaning beyond repeating that the prompt is discarded, keeping it at the baseline.

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 purpose: return a three-step thinking template. It is clear enough as a standalone action, though it doesn't differentiate from siblings or clarify what the template contains.

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 any of the sibling tools, and no mention of expected input conditions. 'Prompt discarded' hints at behavior, not usage context.

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