get_revenue_by_period

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

With no annotations provided, the description carries the full burden. It does disclose the half-open interval semantics [from, to) and the revenue filters (non-cancelled, EUR), which are useful behavioral details. However, it omits output format, aggregation method, and default period behavior.

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 two tight sentences with the purpose stated first and no extraneous words. Every word earns its place.

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?

For a simple calculation tool with no output schema, the description covers the core purpose and parameters, but lacks behavioral and return-value context (e.g., whether it returns a scalar, a series, or a breakdown), leaving some ambiguity for an agent.

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?

The input schema has zero properties and only allows additionalProperties, so the description is the sole source of parameter documentation. It explicitly names 'from' and 'to', specifies the YYYY-MM-DD format, and precisely defines the interval as half-open [from, to).

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?

Description clearly states the verb 'Calculate' and the specific resource 'non-cancelled EUR revenue', with the time period implied by the optional from/to parameters. This differentiates it well from sibling tools like get_category_revenue or get_product_sales.

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?

No guidance is given on when to choose this tool over siblings such as get_category_revenue or get_product_sales. The optional date range is descriptive, but there is no explicit routing or exclusion criterion.

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