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

The description adds the 'all published versions' scope, which is a behavioral trait beyond the read-only and idempotent annotations. However, it does not disclose any additional behavior such as pagination, sorting, or registry specifics. Annotations already cover the safety profile.

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, concise sentence that is easy to parse and front-loads the core function without any fluff.

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?

Given the simplicity of the tool, the existing annotations, and the presence of an output schema, the description provides sufficient context for basic use. It lacks usage guidance, but the core behavior and parameter are covered.

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?

With 0% schema description coverage, the description only implicitly identifies the parameter as the npm package name via the sentence context. It adds minimal meaning beyond the bare schema, but the single parameter's purpose is inferable.

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 clearly indicates the tool returns all published versions for an npm package, avoiding tautology. It is distinct from sibling tools like list_npm_files or npm_package_stats, but it does not explicitly differentiate itself.

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?

No guidance is provided on when to use this tool versus alternatives. It simply states the function without any use cases, prerequisites, or exclusions.

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