mcp2ws

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

No annotations are provided, so the description carries full burden for behavioral disclosure. It fails to describe any traits: it doesn't indicate if this is a read/write operation, what the output format might be, error conditions, or any constraints. The SOAP reference is technical but unhelpful for an AI agent without additional context.

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 extremely concise—a single phrase—but this brevity comes at the cost of under-specification. While it's front-loaded and wastes no words, it fails to provide essential information, making it inefficient rather than appropriately sized. It earns a middle score because it's not verbose, but it's too sparse to be helpful.

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 tool's complexity (1 parameter with 0% schema coverage, no annotations, no output schema), the description is completely inadequate. It doesn't explain the tool's purpose, parameter usage, behavioral traits, or output, leaving the agent unable to use it effectively. A simple read operation like this needs at least basic functional explanation.

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%, meaning the parameter 'sISOCurrencyCode' is undocumented in the schema. The description adds no meaning beyond the schema—it doesn't explain what the parameter represents (e.g., a currency code like 'USD'), valid formats, or examples. This leaves the parameter's purpose and usage ambiguous.

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 'SOAP method: CountriesUsingCurrency' is tautological—it restates the tool name with technical jargon (SOAP method) but doesn't explain what the tool actually does. It lacks a clear verb+resource statement like 'Returns countries that use a specified currency.' While it hints at currency-related functionality, it doesn't distinguish from siblings like CountryCurrency or CurrencyName.

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 provided on when to use this tool versus alternatives. With siblings like CountryCurrency (likely returns currency for a country) and CurrencyName (likely returns name for a currency code), the description offers no context, prerequisites, or exclusions. This leaves the agent guessing about appropriate use cases.

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