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

The description goes beyond the annotations by disclosing the API key requirement and the $0.05 cost. It does not contradict the annotations, but it also does not explain the effect of dismissal, whether it is reversible, or what happens to the entity afterward.

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 a single compact sentence that front-loads the core action and adds only the essential cost/auth caveat. It is appropriately sized, though a bit more context about related tools would improve it without bloating it.

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 annotations and output schema, the description is mostly adequate for a simple dismissal action, but it leaves gaps around when to use bulk vs single dismissal and what the optional reason parameter is for. The presence of an output schema means return values need not be explained, but alternative routing is missing.

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 50%, covering request_id and idempotency_key, but the required clarification_id and the optional reason are undocumented in the schema. The description does not explain how to supply or format any parameter, so it adds little beyond the tool name and 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 clearly states the action ('Dismiss'), the resource ('pending entity clarification'), and gives a concrete example type ('not_person'). It is distinguishable from siblings like resolve_clarification and bulk_dismiss_clarifications, though it does not explicitly name them.

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 about when to choose this tool over the related bulk_dismiss_clarifications or resolve_clarification siblings. The phrase 'pending entity clarification' implies when it is applicable, but the description does not state exclusions or alternatives.

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