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 only the section-scoping constraint, not return shape, ordering, or pagination behavior. Adequate but thin on top of annotations.

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 tight sentence with the resource front-loaded and the dependency trailing. No filler. Could be marginally clearer by naming when to pick this over sibling headline tools.

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 one-parameter read tool with an output schema and read-only annotations, the description covers what it does and where the input comes from. Nothing critical is missing, though an explicit sibling contrast would complete it.

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 100% and the single param is documented as 'Section slug from /bloomberg/categories'. The description reiterates the same source constraint, adding no new syntax or format detail, so baseline 3 is appropriate.

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?

States a specific verb and resource: it fetches the latest Bloomberg story cards for a single editorial section. It distinguishes scope ('one editorial section') but does not explicitly contrast itself with siblings like bloomberg_news or bloomberg_article, which an agent must infer.

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?

Provides a clear prerequisite: the section value must come from bloomberg_categories, which effectively routes the agent to a sibling tool first. However, it gives no when-not guidance or explicit choice criteria against bloomberg_news/headlines-style alternatives.

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