calc_currency_estimate

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

No annotations provided, and the description only implies approximation but does not clarify data source, rate update frequency, or error margins. Lacks disclosure of read-only nature or potential side effects.

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?

Single sentence is concise and front-loaded with the core purpose. No unnecessary words, though could benefit from slightly more detail.

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?

No output schema, but the description fails to indicate return structure (e.g., converted amount, rate used). Missing details on edge cases or error handling. Inadequate for a tool with 3 required parameters and no annotations.

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?

Input schema has no descriptions and 0% coverage. The description does not elaborate on parameter formats (e.g., ISO currency codes, amount rounding). Value added is minimal beyond what the parameter names imply.

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 states 'Estimate currency conversion using a rough rate', clearly indicating the tool's function and the approximate nature of the conversion. It distinguishes from more precise conversion tools among siblings like 'exchangerate_convert'.

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 on when to use this tool versus alternatives like 'exchangerate_convert' or 'forex_convert'. The description does not mention suitability or exclusions.

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