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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds the useful constraint that only one public section can be queried at a time, but it discloses nothing further about freshness guarantees, result volume, or ordering.

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?

A single compact sentence with the core purpose front-loaded and the parameter constraint appended. No filler, nothing redundant.

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 an output schema present, return-value explanation is unnecessary, and the readOnly/openWorld annotations cover behavior. The description adequately conveys purpose and the parameter's required source, leaving only minor gaps like result ordering or count.

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 description coverage is 0% for the single 'section' parameter, so the description must carry the load. It adds meaningful semantics ('public section' and values sourced from rawstory_sections) but gives no format, casing, or example values.

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 gives a specific verb+resource+scope: 'Current Raw Story headlines for one public section.' It also references the sibling rawstory_sections as the source of valid section values, helping an agent distinguish this tool in the rawstory_* family, though it does not explicitly contrast with rawstory_news or rawstory_article.

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?

It states a clear precondition: the section argument 'must come from rawstory_sections,' effectively routing the agent to the correct sibling first. There is no explicit exclusion or when-not guidance, but the usage context is unambiguous.

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