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

With no annotations, the description carries full burden. It discloses that the prompt is discarded, indicating input is ignored, which is a useful behavioral fact. However, it doesn't state whether the tool is read-only, has side effects, or what the output format is beyond 'three-step thinking template'.

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 with zero redundancy. It front-loads the core purpose and adds the key caveat about discarding the prompt. Every word earns its place.

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?

For a tool with nine parameters and no output schema, the description is under-specified. It doesn't explain why parameters exist, what the three-step template looks like, or how the result is used. The agent is left uncertain about the tool's practical value and behavior.

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 coverage is 100%, so baseline is 3. The description adds value by explicitly saying the prompt is discarded, implying all nine parameters are irrelevant to the tool's behavior. This is crucial context that the schema alone doesn't convey, preventing the agent from expecting parameter-dependent outputs.

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 tool returns a three-step thinking template, which is a specific verb and resource. It distinguishes itself from sibling tools that are all about checking URLs, shapes, or data. However, it does not elaborate on what the template contains or how it relates to the prompt.

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 alternatives. It doesn't mention any conditions, use cases, or exclusions. The description only states what it does, leaving the agent to infer applicability.

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