Copy Saved Meal to Diary

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

The description indicates the tool creates entries (side effect) and returns confirmation, which aligns with annotations (readOnlyHint: false, destructiveHint: false). It adds a return value description but lacks details on handling duplicates or overwrites. No contradictions with annotations.

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 concise, using a clear one-sentence summary followed by structured Args and Returns. Every sentence provides essential information without redundancy.

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 no output schema, the description adequately covers behavior (copying foods), parameters, and return type. It lacks preconditions or error cases, but for a straightforward copy action, it is sufficiently complete.

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 100%, and the description largely restates the schema's parameter descriptions. It adds minimal new meaning, such as referring to 'saved meal template' instead of just 'saved meal', but overall it does not significantly enhance understanding beyond the schema.

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 action: copying all foods from a saved meal template into the food diary for a specific date and meal. It uses a specific verb (copy) and resource (saved meal to diary), distinguishing it from sibling tools like create_saved_meal or get_food_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 provides no guidance on when to use this tool versus alternatives, such as creating food entries directly or copying entire days. It does not mention prerequisites, limitations, or when not to use it.

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