get_premium_news_status

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

With no annotations, the description carries the full transparency burden. It conveys a read-only behavior via 'check' and implies user-specific context ('your'). It does not detail what 'active features' means, nor any potential error states, but for a zero-parameter status check these omissions are acceptable. The description is not misleading, but lacks deeper behavioral disclosure.

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?

The description is a single, compact sentence of eight words. It is front-loaded with the action verb and resource, with no filler or repetition. Every word contributes to the meaning.

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 tool with no parameters and no output schema, the description gives a high-level summary of the result ('status and active features') but lacks specifics about the exact response structure, such as possible subscription tiers, expiry dates, or how features are listed. It is minimally complete but leaves room for ambiguity regarding the return payload.

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?

The tool has zero parameters, and the schema is empty with 100% coverage. The description adds no parameter-specific meaning, but the baseline for 0 params is 4, indicating no burden is placed on the description to explain inputs.

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 uses a specific verb 'check' and clearly identifies the resource ('premium news subscription status') plus the scope ('active features'). It is unambiguous and distinguishes itself from sibling news tools that fetch content or configure alerts.

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?

The intended use is implied by the purpose: use when you need to know subscription status or active features. However, there is no explicit guidance about when to choose this over alternatives (e.g., subscribing, fetching news), nor any exclusion criteria, so the guidance is only implied.

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