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

The annotations already declare readOnlyHint=true, destructiveHint=false, and idempotentHint=true, covering safety. The description adds context on output content (meals, photos, comments) but does not detail behavior like pagination, rate limits, or ordering. This adds some value but does not go beyond annotations significantly.

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?

Two sentences, front-loaded with the primary purpose. No redundant or irrelevant information. Every word adds value, fitting the tool's simplicity.

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?

Without an output schema, the description gives a high-level overview of return content but omits pagination details and parameter explanations for skip/take/account. For a 6-parameter tool with 0% schema coverage, this is moderately complete but has clear gaps.

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 patient_id, date, and patient_ids (bulk), but not skip, take, or account parameters, which are undocumented. This leaves the agent guessing about pagination and account filtering, a notable gap.

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 lists food diary entries for a specific patient and date, and indicates the content (food, photos, comments). This verb+resource structure is specific and distinguishes it from sibling tools, none of which list diary entries.

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 description mentions bulk support via patient_ids, which is a usage hint. However, it does not explicitly state when to use this tool vs alternatives or exclude cases. Given no sibling conflicts, this is minor; most usage is clear.

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