get_sdtm_classes

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

With no annotations, the description carries the behavioral burden. It discloses the default-version behavior and states that a dict with classes or error information is returned, but it omits authentication, rate-limit, or response-structure details, and it conflicts with the schema by describing headers_ as a dict while the schema types it as a string.

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 front-loaded with the purpose and organized clearly with Args, Returns, and Example sections. No sentence is wasted, and the example illustrates a realistic call and expected output.

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 no output schema, no annotations, and sparse parameter schemas, the description provides the essential call pattern and return type but does not fully disambiguate from the many sibling tools or explain error/authentication behavior. It is minimally viable for simple retrieval use.

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%, and the description compensates by explaining sdtmig_version's purpose, example formats, optionality/default, and headers_' purpose. However, the headers_ guidance is unreliable because the schema declares it as a string, so the extra meaning is useful but not fully trustworthy.

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 opening sentence names a specific action and resource: getting SDTM domain classes (Findings, Events, Interventions, etc.) from CDISC Library. The SDTM qualifier and 'classes' resource separate it from sibling tools like get_sendig_classes and get_sdtm_domain_structure.

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?

There is no explicit guidance about when to choose this tool over sibling tools such as get_sdtm_domain_structure or get_sdtm_latest_version. The only usage-related note is the parameter-level default behavior for sdtmig_version, which does not help with tool selection.

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