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

The readOnlyHint, openWorldHint, idempotentHint, and destructiveHint annotations already establish the non-destructive, read-only nature of the operation. The description adds some behavioral context by specifying that it searches across repositories and distributions, but it does not explain what is returned or how results are ordered or limited.

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 redundancy or filler. It is efficiently structured and immediately communicates the core purpose.

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?

While the tool is simple and read-only, the lack of any explanation of the many optional filtering parameters and the absence of an output schema leaves important contextual gaps. An agent would not know how to combine repo, distro, arch, source, release, and catalog_revision, nor what a successful response looks like.

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 input schema has 8 parameters with zero description coverage. The description does not explain the meaning or role of query, arch, repo, distro, source, release, or catalog_revision, leaving agents to infer their semantics entirely from parameter names and constraints.

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 states a specific action ('Search'), a specific resource ('package names'), and a clear scope ('across repositories and distributions'). It is concise and understandable, though it does not explicitly differentiate itself from sibling tools like get_package or search_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 get_package, compare_package_versions, or search_tools. The description only states what it does, not when it is the appropriate choice among many similar sibling tools.

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