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 mentions billing per call, but omits read-only nature, rate limits, authentication requirements, or response shape. For a tool with no annotations, this is a significant gap.

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 two short sentences that immediately convey the core action and a key operational detail (cost). Every word adds value, no fluff or repetition.

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 simple one-parameter getter with a self-explanatory name, the description is minimal yet adequate, but it omits usage context among the many sibling profile tools and does not clarify return format or skill scope. It meets the minimum viable standard but leaves clear gaps.

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 needed to compensate, but 'By URN' merely restates the parameter name and does not explain URN format, how to obtain it, or whether it is required despite being listed as optional in the schema. The example in the schema provides more concrete guidance than the 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 clearly states the tool 'Gets profile skills By URN', specifying the action, resource, and input method. It is distinct from other profile tools by focusing on skills, but it does not explicitly contrast with siblings like get_api_v1_profile_full or get_api_v1_profile_overview, which might also include skills.

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_api_v1_profile_full or get_api_v1_profile_overview. The mention of 'Group: Profile' is too vague to serve as a usage criterion, and the billing note only adds cost information, not selection context.

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