get_user_by_id

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

No annotations are provided, so the description carries the full burden. 'Retrieve' and 'public details' imply a read-only operation, but the description does not disclose authentication requirements, behavior for unknown user IDs, or any rate-limit considerations. For a tool with zero annotation coverage, this is a notable 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?

A single, front-loaded sentence with no filler. It states the action, resource, and lookup method in concise order, earning its place without any redundancy.

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 this is a simple read operation with one required parameter and an output schema (per context signals), the description covers the core operation adequately. Missing context around alternatives like get_current_user and error handling prevents a higher score.

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 compensate for the single 'user_id' parameter. The phrase 'by user ID' essentially restates the parameter name and does not add format, example, or source guidance, providing minimal semantic value beyond the schema.

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 uses a specific verb ('Retrieve') and resource ('public details of an Eventbrite user') and clarifies the lookup key ('by user ID'). It distinguishes from sibling get_current_user by implying any user, not the authenticated user, though it does not explicitly name alternatives.

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 clearly implies when to use the tool: when you have a specific user ID and need their public details. However, it provides no explicit guidance on when not to use it or when to prefer siblings like get_current_user, list_user_orders or list_user_organizations.

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