Get Quarterly Taxes

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

Annotations already declare readOnlyHint=true, destructiveHint=false, idempotentHint=true, so the tool is a safe read. The description adds that it defaults to the current quarter, which is useful but does not disclose other behavioral traits beyond annotations. With annotations covering the safety profile, a 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 concise with two paragraphs (English and Spanish) providing localization. It is front-loaded with key information. Some redundancy exists due to bilingual text, but it is efficient overall.

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 lacking an output schema, the description fully lists the return data (Modelo 303, Modelo 130, totals, tax collected/deductible). For a read-only retrieval tool with well-annotated safety, this is complete and sufficient for an AI agent to understand what to expect.

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% with a single optional parameter 'quarter'. The description states 'Defaults to current quarter,' which is also in the schema description. No additional meaning is added beyond what the schema provides, so baseline 3.

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 it retrieves quarterly tax data, listing specific forms (Modelo 303, Modelo 130) and data types (revenue/expense totals, tax collected vs deductible). It distinguishes from sibling tools like get_modelo_130_summary by providing a consolidated view.

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 explicitly marks the tool as 'essential for filing quarterly tax returns with AEAT or ATC (Canary Islands).' This gives clear context for when to use it. It does not explicitly mention alternatives, but the sibling tools exist for more specific form summaries, so usage is clear.

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