get_news_briefs

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

The description is minimal regarding behavioral traits; it only states the action. With no annotations, the description should disclose read-only nature, pagination behavior, or limits, but it does not.

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 concise with a front-loaded purpose and a bulleted parameter list. It could be slightly more compact (e.g., integrating parameter descriptions) but each sentence adds value.

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 simple retrieval tool with an output schema, the description is fairly complete. It covers all parameters and the overall action, but lacks details on behavior when no results or invalid inputs.

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 thoroughly explains each parameter, including defaults, acceptable values for source_type, domain examples, and the format for since. This compensates for the 0% schema description coverage and adds significant meaning.

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 verb 'Retrieve' and the resource 'news briefs from the database', making the tool's purpose unambiguous. It distinguishes from sibling tools that retrieve other types of data.

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 explicit guidance on when to use this tool versus alternatives. The description does not mention conditions, prerequisites, or when not to use it, leaving the agent without decision support.

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