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 offers minimal insight. It states it's a SOAP method, hinting at a web service call, but doesn't describe what the tool returns (e.g., detailed country data), potential rate limits, authentication needs, or error handling. This is inadequate for a tool with zero annotation coverage.

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 concise with a single sentence, but it's under-specified rather than efficiently informative. It front-loads the SOAP method type, yet fails to convey the tool's purpose or usage effectively, making it feel sparse rather than optimally structured.

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 (likely retrieving comprehensive data for all countries), the description is incomplete. With no annotations, no output schema, and minimal description, it lacks details on return values, data format, or behavioral traits, leaving significant gaps for an agent to understand and use the tool 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?

The tool has 0 parameters, and the schema description coverage is 100%, so there's no need for parameter details in the description. The description doesn't add parameter semantics, but this is acceptable given the absence of parameters, aligning with the baseline expectation for such cases.

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: FullCountryInfoAllCountries' is tautological as it essentially restates the tool name with minimal additional context. While it specifies it's a SOAP method, it doesn't clearly articulate what the tool does (e.g., retrieves comprehensive data about all countries) or distinguish it from sibling tools like 'FullCountryInfo' (which likely handles single countries).

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. It doesn't mention any context, prerequisites, or exclusions, such as comparing it to 'FullCountryInfo' for single-country data or other list tools like 'ListOfCountryNamesByCode'. This leaves the agent without direction on appropriate usage scenarios.

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