rb209_field_nutrients

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

No annotations are provided, so the description carries the behavioral burden. It does indicate a read-only GET operation and that the result is a full list, but it does not describe response format, ordering, or any other behavioral details. For a zero-parameter lookup this is adequate but not rich.

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 a single, front-loaded sentence that combines the endpoint, HTTP method, and purpose without any filler. Every word earns its place.

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, parameterless list endpoint, the description is complete enough: it identifies what is returned and the read-only nature via GET. The lack of an output schema is mitigated by the self-explanatory concept of 'available nutrients,' though slightly more detail about the nutrient fields could help.

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 zero parameters and the input schema is empty, so the schema already fully documents the parameter surface. The description does not need to explain parameters, and no parameter information is missing.

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 states a specific verb and resource: 'GET /api/Field/Nutrients' returning 'the full list of available nutrients.' This is clear and unambiguous, though it does not explicitly name a sibling tool to differentiate from; the 'full list' wording helps but is not a direct contrast.

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?

Usage is implied: an agent would call this to get all available nutrients. However, there is no explicit guidance about when to choose this over related sibling tools such as rb209_field_nutrient, nor any mention of exclusions or alternatives.

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