get_user_profile

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

With no annotations, the description must convey behavioral traits. It implies a read-only operation but provides no details on authentication, rate limits, or any side effects. The minimal description adds little beyond the tool name.

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 sentence, very concise. However, conciseness comes at the cost of completeness; it could be slightly expanded to include parameter context or usage notes without becoming verbose.

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?

Given the existence of multiple sibling tools and no annotations, the description is insufficient. It does not clarify the output format (though an output schema exists) or the exact identifier expected (e.g., numeric ID vs screen name). The agent may misinterpret the tool's purpose or input.

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 should compensate by explaining the single parameter 'user_id'. However, it only mentions 'for a user' without specifying required format, type, or meaning. This leaves the agent without sufficient context to populate the parameter correctly.

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 'Get detailed profile information for a user' clearly specifies the action (get) and resource (profile information), but does not differentiate from siblings like 'get_user' or 'get_user_by_id'. While the core purpose is evident, the lack of specificity about what 'detailed' entails leaves ambiguity.

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?

No guidance is provided on when to use this tool versus alternatives such as 'get_user', 'get_user_by_id', or 'get_user_by_screen_name'. The description does not mention use cases, prerequisites, or conditions, making it difficult for an agent to choose correctly among siblings.

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