get_sendig_classes

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

With no annotations provided, the description carries the behavioral burden. It does disclose that the version defaults to latest and that the return is a dict. However, it does not mention potential errors, authentication requirements, or any details about what the dict actually contains beyond 'Domain classes information'.

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 compact, front-loaded with the purpose, and includes Args, Returns, and Example sections. The only minor inefficiency is that the Returns line largely repeats the opening sentence's 'Domain classes information'.

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 simple listing tool with two optional parameters, the description is minimally viable: it documents the version format, defaults, and provides example call signatures. However, with no annotations and no output schema, it lacks richer context about return structure, headers_ semantics, error behavior, or how this tool relates to sibling SEND tools.

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%, so the description must compensate. It explains sendig_version with format examples and default behavior, but headers_ is only described as 'Optional custom headers', adding little beyond its property name and default null. Partial compensation is present, but one parameter remains underspecified.

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 resource: 'Get list of all SEND domain classes' with concrete examples (Findings, Events, Interventions). This clearly distinguishes it from sibling tools like get_sendig_domain_structure and get_sendig_variable_details, even without naming them.

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 given about when to use this tool versus the many sibling tools for SEND domains. The only usage-related note is that omitting sendig_version uses the latest version, which is more a behavioral default than a selection guideline.

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