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

Annotations already declare readOnlyHint=true and destructiveHint=false, and the description's 'Get details' is consistent with that. The description adds minor context by naming returned fields, but does not disclose additional behavior such as permissions, results, error cases, 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?

The description is one concise sentence that states the purpose and a few representative fields. It is front-loaded and there is no significant waste, though it is close to the title in wording.

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 single-parameter get tool with readOnlyHint=true, destructiveHint=false, and an output schema present, the description is sufficient for invocation. It could add more sibling-comparison guidance, but none is strictly necessary for correct use.

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 covers the single profile_id parameter 100% and marks it required, so the schema carries the parameter documentation burden. The description adds little beyond implying that the target is a profile, which is appropriate given coverage.

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 verb ('Get') and resource ('details of a specific profile') and lists example fields. It is easy to distinguish from profiles_list, profiles_create, and profiles_update because it focuses on retrieving a single profile, though it does not explicitly call out a sibling.

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 description implies the use case: retrieve details of one profile. However, it does not provide explicit when-to-use or when-not-to-use guidance, nor does it mention an alternative like profiles_list for enumerating profiles.

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