get_cdisc_codelist

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. It explains default values for standard and codelist_type, the 'fetches latest' behavior when version is omitted, and the return shape. It does not cover error behavior or undocumented headers_, but the core behavior is transparent.

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 well-structured with a front-loaded summary, Args, Usage, and Returns sections. The usage examples are slightly repetitive but provide valuable call variations, and no filler sentences are present.

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?

For a tool with 5 parameters, no annotations, and no output schema, the description covers most inputs and the return type well. However, headers_ is completely undocumented, and there is no guidance on edge cases, errors, or how this tool relates to the many sibling search/package functions.

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, the description compensates well by explaining codelist_value with examples, codelist_type matching modes, standard defaults, and version format. The main gap is headers_, which is not described anywhere in the schema or description.

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 opens with a specific verb and object: 'Retrieve CDISC Controlled Terminology codelist with terms and metadata.' This clearly identifies the tool's purpose and differentiates it from sibling functions that focus on packages, domains, or dataset specializations, though it does not explicitly name a sibling.

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 usage examples provide concrete calling patterns for different parameters, implying when the tool is useful. However, it does not explicitly say when to prefer this tool over alternatives like search_cdisc_library or get_ct_package_codelists, or when not to use it.

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