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

Annotations already declare read-only, idempotent, non-destructive, closed-world behavior, so the description's added value is the AVMA grounding and the fact that scenario selection only layers extra items onto a base kit. It does not say what the returned checklist looks like (grouped list, sections), but that gap is minor given annotations cover the safety profile.

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, zero filler, with the capability front-loaded before the usage cue. Every clause earns its place.

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-optional-param, non-mutating content generator with no output schema, the description covers what it produces, the basis (AVMA), and when to call it. Only the shape of the returned checklist is left implicit, which is a small gap.

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 enum is already documented with 'omit for the base kit only'. The description's enumeration of blizzard/ice/hurricane/summer outage largely restates the enum values, adding only slight semantic color, 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?

Specific verb+resource: 'Build a pet evacuation kit checklist (AVMA-based)' with the exact scope of extras. It is clearly distinct from the surrounding calculators and guide readers, so an agent can tell it apart from every sibling 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?

'Use when someone prepares for a storm or evacuation with pets' gives a clear triggering context and the scenario enumeration implies the four supported situations. There are no explicit exclusions or sibling alternatives named, but none of the siblings plausibly compete with a checklist builder.

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