get_financial_event_groups

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

No annotations are provided, so the description carries full responsibility for behavioral disclosure. It describes what the tool returns but does not mention whether it is read-only, required permissions, rate limits, or any safety considerations. The lack of explicit safety info is a significant gap.

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 three sentences long with no fluff. The first sentence states the core purpose, the second adds what is shown, and the third suggests use cases. It is front-loaded and every sentence adds value.

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 moderate complexity (4 parameters, 1 required), no output schema, and no annotations, the description covers the function adequately but lacks details on pagination behavior, return structure, and behavioral traits. It does not fully compensate for missing annotations and output schema.

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 each parameter having a clear description in the schema. The description does not add additional detail beyond the schema, so it meets the baseline of 3 without providing extra enrichment.

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 verb 'Get' and the resource 'financial event groups' from Amazon Seller Central, and elaborates on what is included (fund transfers, account balances, settlement periods). It distinguishes from sibling tools like 'get_financial_events' by mentioning 'grouped' events, providing adequate context.

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 mentions the tool is 'useful for tracking payments and reconciliation,' which implies a usage context, but it does not explicitly state when to prefer this tool over alternatives (e.g., get_financial_events), nor does it provide exclusions or when-not-to-use guidance.

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