get_user_by_uuid_settings_opt_outs

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, covering the safety profile. The description adds only the HTTP endpoint and does not disclose behavioral details such as response semantics, auth requirements, or open-world limitations.

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 compact and front-loaded: a clear one-line purpose, the HTTP path, and an args section. It has minimal fluff, though the uuid line adds little beyond what the name implies.

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 one-parameter read-only GET with an output schema and safety annotations, this is close to adequate. However, the weak parameter semantics and lack of usage context leave an agent needing to infer how to identify the target user and what the opt-out payload will contain.

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?

Schema description coverage is 0%, so the description must explain the uuid parameter. It only restates that uuid is 'the universally unique identifier,' which is a generic definition of the acronym and does not clarify whose UUID to use, expected format, or relationship to the opt-outs resource.

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 opens with 'Get User Opt-Outs' and provides the HTTP path GET /user/{uuid}/settings/opt_outs, making the action and resource clear. It does not explicitly differentiate from sibling tools, but no sibling appears to target user opt-outs, so the purpose is unambiguous.

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 or any prerequisites/context. The only clue is the tool name and endpoint, so an agent must infer usage.

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