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, and an output schema exists so return contents needn't be detailed. The description adds only the general shape of the response (profile + recent article links) with no mention of pagination, result limits, or auth/prerequisite behavior, so it is adequate but thin.

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?

Two tight sentences with zero filler: the capability lead is front-loaded and the routing guidance follows. Every clause earns its place.

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 fetch with an output schema already defining return structure, the description covers what it does, what it returns at a high level, and how it differs from the sibling feed/article tools. Nothing needed to call it correctly 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 description coverage is 100% and the single url parameter is documented as 'Canonical VICE contributor URL', which the description restates verbatim plus 'canonical'. No additional format guidance (e.g. accepted URL patterns) is offered, so the schema does all the work — baseline 3.

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 (fetch), a specific resource (a VICE contributor's public profile and recent article links), and the required input form (a canonical contributor URL). It also names the sibling tools it is not, so an agent can distinguish it from vice_article/vice_news 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 routes the agent: 'Use vice_article for one story's content or vice_news and vice_headlines for outlet feeds.' It names alternatives and the condition that selects each, leaving nothing to inference for the main routing decision.

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