mcp2ws

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. However, it only states 'SOAP method: LanguageISOCode,' which reveals nothing about the tool's behavior—such as whether it's read-only or mutating, what errors might occur, or what the output format looks like. This leaves the agent with no understanding of how the tool operates beyond its name.

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?

While concise with a single phrase, this is a case of under-specification rather than effective brevity. The description is too sparse to be useful, lacking essential information that would help an agent. It doesn't front-load key details, and the single sentence doesn't earn its place by adding meaningful value beyond the tool name.

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 (a tool with one parameter but no schema descriptions or annotations) and absence of an output schema, the description is completely inadequate. It doesn't explain what the tool does, how to use it, what the parameter means, or what to expect in return. For a tool in a set of country/language utilities, this leaves critical gaps in understanding.

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 one parameter (sLanguageName) with 0% description coverage, meaning the schema provides no semantic information. The description adds no details about this parameter—not explaining what sLanguageName represents (e.g., a full language name like 'English'), expected formats, or examples. With zero compensation for the schema gap, this fails to aid parameter understanding.

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: LanguageISOCode' is essentially a tautology that restates the tool name with minimal added meaning. It doesn't specify what the tool actually does (e.g., 'retrieve ISO code for a language' or 'convert language name to ISO code'), nor does it distinguish this from sibling tools like LanguageName or ListOfLanguagesByCode. The purpose remains vague and unhelpful for agent selection.

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. Given sibling tools like LanguageName (which might convert ISO code to language name) and ListOfLanguagesByCode (which lists languages), the description offers no context for selection. There's no mention of prerequisites, typical use cases, or exclusions.

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