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

Annotations already declare readOnly, idempotent, non-destructive and closed-world behavior, so the description is free to add real context — and it does: sort order, the overdue/due-today/upcoming status marking, and the Leafsight sign-in prerequisite. Return shape and whether the list can be empty are not covered, keeping it off a 5.

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?

Three short sentences, front-loaded with what is returned and in what order, then the optional flag, then the auth prerequisite. Nothing is redundant and no sentence could be dropped without losing information.

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 zero-required-parameter read tool with rich annotations and no output schema, the description supplies the ordering, status vocabulary and auth requirement an agent needs. Only the return shape remains implicit, which is a minor gap at this complexity.

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 100% and the single boolean is already documented as 'Also list watering, treatment and other care tasks.' The description restates this in near-identical terms, adding only the 'include_other_care' naming context, so the baseline 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?

The description names the exact resource ('scheduled plant check-ins') and its ordering and status treatment ('soonest first, marked overdue, due today or upcoming'), which is enough to separate it from get_plant and list_my_plants. It lacks an explicit verb such as 'list' and never names a sibling outright, so it stops short of a 5.

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 only explicit routing guidance is for the flag: 'Set include_other_care to also list watering and treatment tasks,' which tells the agent when to toggle it. There is no statement of when to call this versus get_plant or list_my_plants, so usage is largely implied by the resource name.

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