getDividendsCalendar

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

Annotations already declare readOnlyHint, idempotentHint, and openWorldHint, so the description adds limited behavioral insight. It introduces 'upcoming' (temporal context) but lacks details on pagination, response size, or potential rate limits. The description does not contradict 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?

The description is concise with two sentences. The first sentence is slightly marketing-oriented ('Stay informed...') but the second is more informative. Overall, it is efficient and front-loaded, though could be more direct.

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?

Despite no output schema, the description hints at response contents (record dates, yields). However, it does not specify structure (array, field names), date range behavior, or whether results are sorted. For a calendar tool, more detail on the returned format would improve completeness.

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 coverage is 100%, so baseline is 3. The description does not elaborate on the two parameters (from_date, to) beyond what the schema provides. It mentions response fields like dividend yields, but these are not parameters, adding no semantic value to the input 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 tool retrieves a comprehensive schedule of upcoming dividend events for all stocks, specifying record dates, payment dates, declaration dates, and dividend yields. This distinguishes it from sibling tools like getDividends (which likely returns data for a single stock) and other calendars.

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 implies use for monitoring upcoming dividend events but does not explicitly state when to use this tool over alternatives like getDividends, getEarningsCalendar, or getStockSplitCalendar. No when-not guidance is provided, leaving the agent to infer from context among many sibling tools.

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