Get Units By Item

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

With no annotations provided, the description carries the full burden of disclosing behavior, but 'Get One' says nothing about side effects, permissions, response shape, or error conditions. It is purely tautological and adds no behavioral information beyond the tool 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?

The description is extremely short, but this is under-specification rather than conciseness. It does not use its brevity to front-load any useful information; it merely repeats the verb from 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 tool has 2 parameters, no annotations, and an output schema, the description is completely inadequate for an agent to call it correctly. The agent would have to rely entirely on the tool name and schema, which is not enough to understand the intended resource or semantics.

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 adds no meaning to item_id or accept-language. The description does not clarify what item_id refers to, how accept-language affects the response, or what 'one' maps to in terms of the API contract.

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 'Get One' provides no resource or context, merely restating the 'get' part of the tool name. It does not mention units, item_id, or what is being retrieved, making it impossible to understand the tool's purpose from the description alone.

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 guidance on when to use this tool versus alternatives like list_units or get_foods_by_item. The description offers no context, prerequisites, or exclusions, leaving the agent without any basis for tool selection.

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