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

Annotations already declare this as read-only, idempotent, non-destructive, and closed-world. The description adds useful domain behavior beyond annotations: Kyiv hub customs clearance, three days free storage, address delivery, pickup, and local courier fallback.

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 front-loaded with the shipment process and then lists concrete usage scenarios. It is dense but every sentence contributes relevant information; minor improvement could come from breaking the semicolon-heavy first sentence into clearer structure.

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 the tool has no input parameters and no output schema, the description provides enough context for an agent to know when to call it and what domain information it covers, including customs, storage, delivery, pickup, and local courier coverage.

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?

The tool has zero parameters, so parameter semantics are not applicable and the baseline is 4. The schema is empty and consistent with a purely informational tool.

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 tool's informational purpose: explaining how shipments move inside Ukraine, including customs clearance, storage, delivery, and pickup. It is specific about the process but does not explicitly differentiate itself from the sibling delivery_rules tool.

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?

It gives clear usage triggers: where/how to receive a parcel, delivery to a specific city, pickup, storage, and delivery time inside Ukraine. It does not name when not to use it or point to an alternative sibling tool.

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