mcp2ws

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

With no annotations provided, the description carries the full burden of behavioral disclosure but fails completely. It doesn't indicate whether this is a read or write operation, what kind of data it returns, whether it has rate limits, authentication requirements, or any other behavioral characteristics. The description provides zero behavioral context beyond the technical protocol.

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 - just 4 words. However, this brevity comes at the cost of being under-specified rather than efficiently informative. While it's technically 'front-loaded' (there's only one piece of information), it fails to provide the essential context needed for tool selection and invocation.

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 complexity implied by the tool name ('FullCountryInfo'), the complete lack of annotations, no output schema, and 0% parameter documentation, the description is woefully incomplete. It provides none of the information needed to understand what the tool does, when to use it, what it requires, or what it returns - making it essentially useless for an AI agent.

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?

With 0% schema description coverage and a single required parameter (sCountryISOCode), the description provides no information about what this parameter means, what format it expects, or what values are valid. The description doesn't mention parameters at all, leaving the agent with no semantic understanding of the input requirements beyond the bare schema.

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: FullCountryInfo' is tautological - it essentially restates the tool name with technical protocol information. It doesn't specify what action the tool performs (retrieve? display? analyze?) or what 'FullCountryInfo' actually means. While the name suggests it provides comprehensive country information, the description fails to articulate this purpose clearly.

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 provides absolutely no guidance on when to use this tool versus the many sibling tools available (CapitalCity, CountryCurrency, CountryFlag, etc.). There's no indication of what distinguishes 'FullCountryInfo' from other country-related tools or when it would be the appropriate choice among alternatives.

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