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

Annotations declare destructiveHint=false, but the description explicitly says the entry is 'gone from that day' and that logging it again is 'a new call', i.e. an irreversible deletion. That directly contradicts the annotation, so the description cannot be trusted for safety profiling.

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?

Purpose and effect are front-loaded, but the paragraph then spends two consecutive sentences on confirmation with different implications ('you can switch that off' vs 'confirm... before each call'), which wastes space and muddies the instruction.

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 one-parameter delete, the description covers the effect, permanence, auth prerequisite, and confirmation. The unresolved confirmation conflict and the questionable 'Reaches other people' framing are minor gaps but the topic coverage is otherwise adequate.

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?

There is only one parameter, and schema coverage is 100% with a helpful pointer to get_diary in the schema itself. The description adds no semantics about item_id, so the high-coverage baseline of 3 applies.

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?

States a specific verb ('Remove') and resource ('one entry from a day in the diary') and narrows scope to 'a single product or meal entry' with a concrete analogy ('tapping the X on its card'). An agent can distinguish this from the logging/copying siblings without opening the schema.

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?

Gives prerequisites (Cotlet API key with app access) and a confirmation caveat, but never states when to choose this over alternatives such as re-logging with fitatu_log_food or fitatu_copy_day. The two confirmation sentences ('you can switch that off' vs 'confirm... before each call') also sit uneasily together.

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