Visão Geral de Transações

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is clear. The description adds minimal value by stating it returns totals/balances, but does not elaborate on response structure, caching, or authentication requirements. Given the strong annotations, a score of 3 is appropriate.

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). It is front-loaded with the core action, but lacks structure such as separate sections for usage or examples. Brevity is appreciated, but not at the cost of essential information.

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 (not shown in input) and annotations covering safety, the description is minimally adequate for a simple read operation. However, it fails to explain that the date must match a specific pattern or note the unusual default value of 2026-07-29, which could confuse agents.

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 0%, meaning the description does not describe the parameter at all. While the description mentions 'para uma data' (for a date), it does not specify the parameter name, format (YYYY-MM-DD), optionality, or default value. With only one parameter, more detail would be expected.

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 that the tool retrieves totals and balances for a specific date. 'Obtém totais e saldos para uma data' translates to 'Gets totals and balances for a date,' which is a specific verb+resource combination. Among siblings, it is distinct from search_transactions or finance_summary, though the differentiation is implicit.

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 explicit guidance on when to use this tool versus alternatives such as 'finance_summary' or 'search_transactions'. The description only states it works for a date, but does not explain prerequisites, limitations, or provide examples of appropriate context.

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