profit_and_loss

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

The 'read-only' note is helpful, indicating no side effects. However, with no annotations, the description doesn't disclose additional behaviors such as caching, rate limits, or whether parameters are date ranges for filtering the report. The parameter names hint at date filtering, but this could be more explicit.

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 very concise (one short sentence). While brevity is positive, it sacrifices critical details. It could be restructured to front-load the purpose while still being compact.

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 and sibling tools, the description is incomplete. It doesn't explain what the snapshot contains, how date ranges work, or any prerequisites. The 0% schema description coverage and lack of annotations mean the description carries full burden, which it does not meet.

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 input schema has 0% description coverage and no parameter descriptions. The names 'to_date' and 'from_date' are self-explanatory, but the description fails to explain their format, interpretation, or how they affect the report. Multiple formats (string with no pattern) increase ambiguity.

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 this is a profit and loss snapshot, which is a specific financial report, and the read-only note clarifies its nature. It distinguishes from siblings like balance_sheet and trial_balance by name, though further detail would solidify differentiation.

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 usage guidance is provided. The description does not indicate when to use this tool versus alternatives like aged_receivables or bank_balances. Sibling tools are listed but without any comparative notes.

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