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

Annotations already declare readOnlyHint=true and openWorldHint=false, so the safety profile is covered. The description adds only domain context (these IDs are referenceable by requirements); it says nothing about whether the full ID set is returned, ordering, or pagination.

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?

A single front-loaded sentence with the verb and resource first, followed by disambiguating categories and examples. No filler.

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?

The output schema exists, so return values needn't be explained, and the purpose is clear. But with an undocumented filtering parameter and no guidance on scope (full catalog vs filtered subset), the definition is only adequate.

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?

There is one parameter, 'category', with 0% schema description coverage, and the description never mentions it or explains how filtering by category relates to the listed category groups. The burden of documenting that parameter falls entirely on the description and it is unmet.

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 (list) and resource (capability ids) and disambiguates with parenthetical categories (features, compliance, regions) plus concrete ID examples like auth.saml_sso. It doesn't name a sibling tool, but the meaning is unmistakable against list_vendors or search_directory.

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 phrase 'that requirements can reference' implies the tool is used before writing requirements or fitting a stack, but there is no explicit when-to-use, no prerequisites, and no mention of alternatives such as searching the directory.

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