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

No annotations are provided, so the description carries the full burden. It usefully discloses that the return includes status, route, and milestones, and that input formats are normalized, but it does not cover failure modes for invalid AWBs, data freshness, auth, or rate limits.

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 purpose and followed by input flexibility and return contents. Every sentence adds information and there is no filler.

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?

With no output schema, the description appropriately mentions what is returned: status, route, milestones. For a simple one-parameter read tool this is nearly complete, though it could briefly note behavior on invalid or unknown AWBs.

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 100%, so the baseline is 3, but the description adds real value by showing accepted AWB formats with examples such as '176-1234 5675' and '17612345675', confirming that formatting is normalized and flexible.

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+resource: 'Track an air-cargo shipment by its air waybill (AWB) number.' This is clearly distinct from the sibling tools air_rate_quote (pricing) and resolve_awb_prefix (prefix lookup), so an agent can select it 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?

The tracking context is clear and the accepted input formats are given, which helps an agent know when this tool applies. It does not explicitly say when to prefer resolve_awb_prefix for prefix resolution or air_rate_quote for pricing, so it stops short of explicit alternatives.

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