export_expenses_csv

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

With no annotations, the description carries the behavioral burden. It states the core action and result (exports to CSV), which is helpful, but it does not disclose whether the export is scoped to all expenses by default, how filters affect the output, or what the returned CSV/output schema represents. No contradictions with annotations exist because none are provided.

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?

A single, front-loaded sentence that conveys the core operation without filler. Every word earns its place, and the format is immediately scannable.

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 tool with three optional parameters and no annotations, the description is minimally sufficient but leaves gaps: it never states that category/start_date/end_date filter the export, nor what columns or date format the CSV uses. The presence of an output schema helps, but the description alone would not fully prepare an agent to use the filters correctly.

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 0%, so the description must compensate. It does not: category, start_date, and end_date are never mentioned. The parameter names are self-explanatory and the schema shows defaults of null, but no format, filtering rule, or inclusive/exclusive behavior is documented.

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 uses a specific verb ('export') with a clear resource ('expenses') and output format ('CSV file'). This unambiguously distinguishes it from sibling tools like list_expenses or summarize_expenses, which present data in other forms.

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 use this tool versus alternatives such as monthly_report, list_expenses, or summarize_expenses. It also doesn't explain that the optional parameters act as filters or mention any prerequisites. The only implied context is the tool name itself.

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