BetaSeries: news

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

With no annotations, the description carries the full burden. It states the operation displays latest news, implying a read-only action, but it does not disclose return format, pagination, authentication requirements, or potential side effects. This is acceptable for a simple GET request but lacks depth.

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 compact and well-structured, with a clear call to action and a single operation listed with its parameters. Every sentence contributes to understanding, with no redundant or filler content.

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 simplicity of the tool (one operation, two parameters) and no output schema, the description covers the essentials. However, it omits details about the response structure, possible error conditions, and any required authentication. It is minimally sufficient but not comprehensive.

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 description adds significant semantic value beyond the generic params object schema by detailing each parameter (number, tailored) with their meaning and defaults. The schema only defines a generic string-keyed object, so the description is essential for correct usage.

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 identifies the tool as the BetaSeries news API and specifies the exact operation (get-news-last) with its endpoint (GET /news/last), making the purpose unambiguous. It distinguishes itself from sibling tools by focusing on news functionality.

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 basic usage instructions ('Pick an operation and pass its parameters') but does not explain when to prefer this tool over alternatives like timeline or search, nor when not to use it. No exclusion criteria or alternative guidance is given.

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