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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only adds 'nearest first' as a behavioral trait; it does not state whether the operation is read-only, whether auth is needed, what happens when no tracks match, or how results are returned. With no output schema, this is a meaningful gap.

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 short sentences with no redundancy. The core action and ordering behavior are front-loaded, and the usage cue follows without padding.

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?

The tool is simple and the schema covers all parameters, but there is no output schema or annotations. The description handles purpose and usage well but leaves return format, failure behavior, and edge cases unspecified, so an agent is missing some execution detail.

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 schema already explains lat, lng, and radius. The description adds 'nearest first' and frames the parameters as the center of a proximity search, but does not meaningfully extend parameter semantics beyond the schema.

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 ('Find tracks'), the spatial constraint ('near a latitude and longitude'), and the ordering ('nearest first'). This clearly distinguishes it from search_tracks and list_events without needing to open 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?

Explicitly ties the tool to 'tracks near me' questions, giving a clear trigger context. It doesn't explicitly discuss when to prefer a sibling like search_tracks, but the usage cue is sufficient for the common case.

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