get_webinar_registrants

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

Annotations already declare readOnlyHint and idempotentHint. The description adds value by mentioning cursor pagination, filtering, and sorting features, but does not disclose behavior like rate limits, response format, or edge cases. With annotation coverage, a 3 is appropriate.

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?

Single sentence, front-loaded with the main action, and avoids redundancy. However, it could briefly explain key parameters without losing conciseness.

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?

With 9 parameters, no output schema, and minimal annotations, the description is insufficient for an agent to use the tool correctly. It omits details on filtering fields, sort options, pagination mechanics, and return format.

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. It only vaguely mentions 'cursor pagination, filtering, sorting' without explaining individual parameters (e.g., sort enum values, limit range, cursor usage). This provides minimal additional meaning over the schema structure.

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?

Clearly states the verb 'list', the resource 'webinar registrants', and key features (cursor pagination, filtering, sorting). It distinguishes from sibling tools like create_webinar_registrant (creation) and list_recordings (different resource).

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?

Usage is implied (listing registrants), but no explicit guidance on when to use vs alternatives, no exclusions, and no mention of prerequisites or context. The sibling list_recordings suggests different resources, but the description doesn't clarify.

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