get_daily_macros

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

With no annotations, the description carries full burden. It discloses the tool returns nutrient breakdown but does not mention read-only nature, authentication needs, or any side effects. For a get endpoint, basic safety traits should be implied but not stated, which limits transparency.

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 two sentences with no fluff. First sentence defines purpose, second describes parameter. Information is front-loaded and compact, making it easy to parse quickly.

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's simplicity (1 optional param, no output schema) and sibling set, the description covers core purpose and parameter but omits return format or examples. While not critically incomplete, it could mention typical nutrients returned to set expectations.

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 coverage is 0%, but the description adds meaning for the single 'date' parameter: specifies format (YYYY-MM-DD) and default (today). This goes beyond the schema's type-only definition, providing necessary semantic detail.

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 clearly states the tool gets 'comprehensive macro and micronutrient breakdown with all tracked nutrients.' This distinguishes it from siblings like 'get_daily_summary' by specifying nutrient-level detail, but could more explicitly contrast with similar tools.

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 on when to use this tool versus alternatives like get_daily_summary or get_daily_meals. The agent is left to infer from the description, with no explicit 'when to use' or 'when not to use' instructions.

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