get_nearby_webcams

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

Annotations already declare readOnlyHint=true, so the agent knows this is a safe read operation and there is no contradiction. The description itself adds no behavioral disclosures such as result ordering, radius behavior, or effects of the include parameter; it mostly restates the core purpose without giving extra operational context.

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 a single sentence that front-loads the tool's purpose with no filler or redundant words. It is appropriately terse, even though the brevity shifts explanatory weight to the schema and annotations.

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 simple read-only lookup with a full output schema and complete parameter documentation, the description is minimally viable. However, it does not disambiguate against several closely related siblings such as get_webcams_by_location and search_webcams, so an agent may struggle to choose the right tool solely from this description.

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?

All five parameters are fully described in the schema with constraints and defaults, so the baseline of 3 applies. The description only mentions 'coordinates' and does not add semantic detail beyond the schema, but no compensation is needed because schema coverage is 100%.

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 uses a specific verb ('Find') with a clear resource ('webcams') and a geographic scoping clause ('near specific coordinates'). It clearly distinguishes coordinate-based proximity search from single-webcam retrieval, but it does not explicitly differentiate it from closely related sibling tools like get_webcams_by_location or search_webcams.

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 phrase 'near specific coordinates' implies the tool should be used when a coordinate-based proximity query is needed. However, the description never states when not to use it, nor does it mention any alternative sibling tools, leaving selection partially to inference.

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