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

Annotations cover the safety profile (write, non-destructive, closed-world), and the description adds genuinely useful behavior: the subscription restarts, pickups are booked immediately, and each is priced for its date. It still omits what happens to previously scheduled pickups and whether any price difference is charged, so it falls short of 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?

Two tight sentences, front-loaded with the action and consequences, with no wasted wording. The authentication requirement is a compact final note.

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?

No output schema exists and two of five parameters are undocumented, so the description should do more. It handles side effects and authentication well but leaves the return value, the fate of existing pickups, and the dropoff/service-zone parameters unspecified.

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 40%, so the description must carry the burden. It loosely maps 'option, address or number of bags' to serviceZoneScheduleId, addressId and bags, but never explains dropoffAddressId and does not clarify how addressId differs from dropoffAddressId or what 'option' concretely is.

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?

Uses a specific verb ('Moves') and resource (subscription) and enumerates the changeable dimensions: option, address, bags. It does not distinguish itself from the sibling update_subscription, so an agent must infer the boundary between the two.

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?

States the prerequisite (Happy Hamper login) but gives no explicit when-to-use guidance, no exclusions, and no routing to alternatives such as update_subscription. The usage is only implied by the purpose sentence.

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