Getflightstatus

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

With no annotations, the description carries the full behavioral burden. It usefully discloses the data source (OpenSky Network) and that only live data is available. However, it omits auth requirements, rate limits, and error/failure behavior for unknown callsigns, leaving meaningful gaps.

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?

Compact and front-loaded: the purpose and data source lead, followed by parameter clarifications. Every clause adds information, though the parenthetical about date sits at the end rather than being foregrounded as a constraint.

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 2-parameter tool with no output schema and no annotations, the description covers purpose, source, and parameter meaning adequately. It stops short of describing the shape of the returned status (position/velocity fields) or failure behavior, which slightly leaves an agent guessing.

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 0%, so the description must compensate, and it does: flight_number is defined as a callsign with an example (CCA1234), and date is explicitly declared invalid/ignored. Both parameters receive meaningful interpretation beyond the bare schema, though format edge cases are not covered.

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 and resource: queries real-time flight position and status via OpenSky Network. It also clarifies the flight_number format (callsign like CCA1234). However, it does not explicitly differentiate itself from siblings like getFlightInfo, which an agent would need to disambiguate.

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 description implies usage by stating it only supports real-time data and that the date parameter is invalid, which steers an agent away from historical queries. But it names no alternative tool and gives no explicit when-to-use/when-not-to-use guidance relative to getFlightInfo or getFlightStatus-related siblings.

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