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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered structurally. The description adds nothing on top of that: no return format, no pagination, no rate-limit or history-depth behavior, despite an output schema existing. It neither contradicts nor enriches the annotations.

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?

It is a single fragment with no wasted words, but that brevity comes from under-specification rather than economy. For a three-parameter tool with sibling ambiguity, five words is not an appropriate size and nothing is front-loaded beyond the resource name.

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?

An output schema and annotations exist, so return values and safety need not be restated, but the description still leaves the agent unable to distinguish this tool from the other Metaculus forecast tools or to understand what 'options' means here. It is inadequate for a tool sitting in a dense sibling cluster.

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 100%, with id, method (with enumerated allowed values) and max_points all documented in the schema itself, so the baseline is 3. The description contributes no additional meaning about any of the three parameters.

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 is a four-word noun phrase, 'Metaculus question option forecasts,' that essentially restates the tool name. It names the resource (question options) and implies forecasts are returned, but supplies no verb (get/list/retrieve) and does nothing to separate it from close siblings like metaculus_question_forecasts or metaculus_question_forecast_history.

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 when-to-use guidance, no conditions, no prerequisites, and no mention of any alternative tool. Against a large Metaculus sibling cluster (metaculus_question, metaculus_question_forecasts, metaculus_question_forecast_history), the agent gets zero routing signal.

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