get_invoice_series

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

The description adds no behavioral information beyond what the readOnlyHint annotation already provides. There is no mention of side effects, permissions, or data scope, so the agent gains no additional insight into tool 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 extremely concise (one short phrase), but it lacks a verb and feels underspecified. While brevity is generally good, the minimal text barely meets the bar for clarity, resulting in a borderline score.

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 presence of an output schema, the description need not explain return values, but it does not provide any context about what 'invoice series' are, how they are configured, or how the output is structured. More context would help the agent understand the tool's purpose.

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 tool has no parameters, so schema description coverage is 100%. With no parameters to document, the description does not need to add parameter semantics. The baseline for zero-parameter tools is 4.

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 'Series de facturación configuradas' provides a general idea of the resource but lacks a verb (e.g., 'gets' or 'lists'), making it vague. It repeats the resource from the name without clarifying whether it retrieves a single series or a list, and does not distinguish it from sibling tools like 'get_invoice' or 'list_invoices'.

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 provided on when to use this tool versus alternatives. With many sibling tools for reading and writing, the description offers no context or constraints, leaving the agent to infer usage from the name alone.

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