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

Annotations already declare readOnlyHint=true and openWorldHint=true, so safety and freshness-from-open-web are covered. The description adds only "current" and the section-source constraint; it says nothing about result count, pagination, or ordering, so it adds modest value beyond the 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 compact sentence with zero filler, front-loading the resource (headlines) and the scope constraint (one public section) followed by the section-source rule.

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-only feed tool with an output schema and safety annotations, the description is nearly sufficient. It could note that only one section is allowed per call and whether results are paginated, but nothing critical for a correct invocation is missing.

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 coverage is 100% and the schema already enumerates documented section slugs, so baseline would be 3. The description adds a cross-tool validity constraint ("section must come from businessstandard_sections"), which is genuine semantic guidance beyond the schema's static list.

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 ("Current Business Standard headlines") plus the scoping constraint ("one public section"), which cleanly distinguishes it from siblings like businessstandard_sections, businessstandard_article, and businessstandard_news. An agent can identify the tool without opening the schema.

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?

Explicitly directs the agent to businessstandard_sections for valid section values, establishing the prerequisite call order. It does not, however, state when NOT to use this tool (e.g., for a single article vs. a section feed) beyond the implicit contrast.

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