get_rate_limits

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

The description only states that the tool lists ceilings, which implies a read operation. However, it does not disclose any behavioral traits such as whether the tool is paginated, requires authentication, or has rate limits. Since no annotations are provided, the description carries the full burden but fails to add meaningful transparency beyond the tool name.

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 a single sentence with no extraneous words. It is front-loaded with the action and resource. Every word earns its place, making it highly concise and efficient.

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 no parameters and an output schema exists to describe return values, the description is adequate but not fully complete. It does not explain domain terms like 'RateClass' or 'ceilings', which may be necessary for an agent to correctly interpret the tool's output. The missing context reduces completeness slightly.

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 has zero parameters and schema description coverage is 100% (trivially). According to the rubric, zero parameters yields a baseline score of 4. The description does not need to explain parameters since none exist, and it does not add misleading information.

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 ('List') and the resource ('pylzt's published per-RateClass request ceilings'). It is specific and distinguishes the tool's purpose from sibling tools, but the term 'pylzt' is not explained, which could cause minor ambiguity for agents unfamiliar with the system.

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. It does not mention prerequisites, context, or when not to use it. Sibling tools exist, but no comparison or exclusion criteria are given.

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