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

Annotations already declare readOnlyHint=true and openWorldHint=true, so safety and external-data traits are covered. The description adds useful scoping context ('current', 'public section'), but says nothing about pagination, result count, or freshness latency for a live-feed tool.

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?

One sentence, front-loaded with what is returned, followed by the constraint on input. No filler.

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?

An output schema exists, so return values need not be explained, and the single-param contract is covered. What is missing is only minor: how many headlines come back and whether the section value is a slug or label.

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 0% and the single param has no inline description, so the description carries the burden — and it does: it explains that 'section' is constrained to values from newyorker_sections. It stops short of giving the value format (e.g. slug vs. display name), leaving a small gap.

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+resource ('Current The New Yorker headlines') and scopes it to 'one public section'. Combined with the sibling set (newyorker_sections, newyorker_article, newyorker_news), an agent can distinguish this headlines-listing tool without opening any 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 states the prerequisite: 'section must come from newyorker_sections', which routes the agent to the sibling that provides valid inputs. It does not name a when-not-to-use case or an alternative headlines source, so it falls short of a 5.

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