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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only lists output topics and gives no information about side effects, read-only status, source of data, rate limits, or auth requirements.

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 short sentence with no filler, and the key output dimensions are front-loaded. Minor repetition of 'npm package' and lack of a verb keep it from being a top-tier concise definition.

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 tool with no annotations, the description leaves important gaps: it does not define q, explain what happens when q is empty, or specify when npmpkg is preferred over sibling npm tools. Although an output schema exists, the missing parameter and usage context make the definition incomplete for reliable invocation.

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 schema has one parameter, q, with no description, and schema coverage is 0%. The description does not explicitly explain that q is an npm package name or how the query string should be formatted, only implying the domain from the tool name and description.

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 identifies the resource as an npm package and lists notable output aspects: version, deps, and maintainers. It is clear enough about the tool's focus, though it lacks an explicit verb and does nothing to differentiate npmpkg from sibling npm-related tools.

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?

There is no guidance on when to use this tool versus alternatives such as npm, npmorg, or npmdl. The description gives no context, exclusions, or conditions that would help an agent choose between related package tools.

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